[SR-Users] inbound kamailio dispatcher faulty routing of ack after 200 OK

Gijs Kwakkel kwakkel1000 at gmail.com
Tue Jun 10 14:16:48 CEST 2014


client1 <> provider <> kamailio <> asterisk <> client2

when client1 calls client2, everything seems to work. sounds works.
after a few seconds the call gets terminated.

after tcpdump syslog and config checks i figured out that asterisk sends
200 OK through kamailio to the provider, after this the provider sends a
ACK to kamailio, kamailio however sends this ACK to itself and not to
asterisk.

I added the config, syslog and wireshark output (converted)
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#!KAMAILIO

#!define WITH_CONFIG_DEBUG
#!define WITH_AUTH
##!define WITH_DEBUG
#!define WITH_POSTGRESQL
#!define WITH_LCR
#!define WITH_NAT

#
# Kamailio (OpenSER) SIP Server v4.0 - default configuration script
#     - web: http://www.kamailio.org
#     - git: http://sip-router.org
#
# Direct your questions about this file to: <sr-users at lists.sip-router.org>
#
# Refer to the Core CookBook at http://www.kamailio.org/dokuwiki/doku.php
# for an explanation of possible statements, functions and parameters.
#
# Several features can be enabled using '#!define WITH_FEATURE' directives:
#
# *** To run in debug mode:
#     - define WITH_DEBUG
#
# *** To enable postgresql:
#     - define WITH_POSTGRESQL
#
# *** To enable authentication execute:
#     - enable mysql
#     - define WITH_AUTH
#     - add users using 'kamctl'
#
# *** To enable IP authentication execute:
#     - enable mysql
#     - enable authentication
#     - define WITH_IPAUTH
#     - add IP addresses with group id '1' to 'address' table
#
# *** To enable persistent user location execute:
#     - enable mysql
#     - define WITH_USRLOCDB
#
# *** To enable presence server execute:
#     - enable mysql
#     - define WITH_PRESENCE
#
# *** To enable database aliases lookup execute:
#     - enable mysql
#     - define WITH_ALIASDB
#
# *** To enable speed dial lookup execute:
#     - enable mysql
#     - define WITH_SPEEDDIAL
#

# *** To enhance accounting execute:
#     - enable mysql
#     - define WITH_ACCDB
#     - add following columns to database
#!ifdef ACCDB_COMMENT
  ALTER TABLE acc ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN src_ip varchar(64) NOT NULL default '';
  ALTER TABLE acc ADD COLUMN dst_ouser VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE acc ADD COLUMN dst_domain VARCHAR(128) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN src_ip varchar(64) NOT NULL default '';
  ALTER TABLE missed_calls ADD COLUMN dst_ouser VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT '';
  ALTER TABLE missed_calls ADD COLUMN dst_domain VARCHAR(128) NOT NULL DEFAULT '';
#!endif



# *** To enable nat traversal execute:
#     - define WITH_NAT
#     - install RTPProxy: http://www.rtpproxy.org
#     - start RTPProxy:
#        rtpproxy -l _your_public_ip_ -s udp:localhost:7722
#


# *** To enable TLS support execute:
#     - adjust CFGDIR/tls.cfg as needed
#     - define WITH_TLS
#
# *** To enable XMLRPC support execute:
#     - define WITH_XMLRPC
#     - adjust route[XMLRPC] for access policy
#
# *** To enable anti-flood detection execute:
#     - adjust pike and htable=>ipban settings as needed (default is
#       block if more than 16 requests in 2 seconds and ban for 300 seconds)
#     - define WITH_ANTIFLOOD
#
# *** To block 3XX redirect replies execute:
#     - define WITH_BLOCK3XX
#
# *** To enable VoiceMail routing execute:
#     - define WITH_VOICEMAIL
#     - set the value of voicemail.srv_ip
#     - adjust the value of voicemail.srv_port
#



####### Defined Values #########

# *** Value defines - IDs used later in config

#!ifdef WITH_MYSQL
# - database URL - used to connect to database server by modules such
#       as: auth_db, acc, usrloc, a.s.o.
### managed by puppet[kamailio] ###
#!define DBURL "secret dburl"

#!define DBASTURL "secret dbaurl"

#!endif


#!ifdef WITH_POSTGRESQL
# - database URL - used to connect to database server by modules such
#       as: auth_db, acc, usrloc, a.s.o.
### managed by puppet[kamailio] ###
#!define DBURL "secret dburl"

#!define DBASTURL "secret dbaurl"

#!endif

# - the value for 'use_domain' parameters

#!define MULTIDOMAIN 0


# - flags
#   FLT_ - per transaction (message) flags
#       FLB_ - per branch flags
#!define FLT_ACC 1
#!define FLT_ACCMISSED 2
#!define FLT_ACCFAILED 3
#!define FLT_NATS 5

#!define FLB_NATB 6
#!define FLB_NATSIPPING 7

####### Global Parameters #########

#!ifdef WITH_DEBUG
debug=4
log_stderror=yes
#!else
debug=2
log_stderror=no
#!endif



memdbg=5
memlog=5

#log_facility=LOG_LOCAL0
log_facility=LOG_LOCAL7

fork=yes
#children=4
children=16

/* uncomment the next line to disable TCP (default on) */
#disable_tcp=yes

/* uncomment the next line to disable the auto discovery of local aliases
   based on reverse DNS on IPs (default on) */
#auto_aliases=no
auto_aliases=no

/* add local domain aliases */
#alias="sip.mydomain.com"
### managed by puppet[kamailio] ###



/* uncomment and configure the following line if you want Kamailio to
   bind on a specific interface/port/proto (default bind on all available) */
### managed by puppet[kamailio] ###
listen=udp:myip:5060
listen=tcp:myip:5060


/* port to listen to
 * - can be specified more than once if needed to listen on many ports */
port=5060

#mhomed=1
#!ifdef WITH_TLS
enable_tls=yes
#!endif

# life time of TCP connection when there is no traffic
# - a bit higher than registration expires to cope with UA behind NAT
tcp_connection_lifetime=3605

####### Custom Parameters #########

# These parameters can be modified runtime via RPC interface
# - see the documentation of 'cfg_rpc' module.
#
# Format: group.id = value 'desc' description
# Access: $sel(cfg_get.group.id) or @cfg_get.group.id
#



####### Modules Section ########

# set paths to location of modules (to sources or installation folders)
#!ifdef WITH_SRCPATH
mpath="modules_k:modules"
#!else
#mpath="/usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/"
mpath="/usr/local/lib64/kamailio/modules/"
#!endif

#!ifdef WITH_MYSQL
loadmodule "db_mysql.so"
#!endif

#!ifdef WITH_POSTGRESQL
loadmodule "db_postgres.so"
#!endif

#!ifdef WITH_LCR
loadmodule "lcr.so"
#!endif

loadmodule "mi_fifo.so"
loadmodule "kex.so"
loadmodule "tm.so"
loadmodule "tmx.so"
loadmodule "sl.so"
loadmodule "rr.so"
loadmodule "pv.so"
loadmodule "maxfwd.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "textops.so"
loadmodule "siputils.so"
loadmodule "xlog.so"
loadmodule "sanity.so"
loadmodule "ctl.so"
loadmodule "cfg_rpc.so"
loadmodule "mi_rpc.so"
loadmodule "acc.so"

#!ifdef WITH_AUTH
loadmodule "auth.so"
loadmodule "auth_db.so"
#!ifdef WITH_IPAUTH
loadmodule "permissions.so"
#!endif
#!endif

#!ifdef WITH_ALIASDB
loadmodule "alias_db.so"
#!endif

#!ifdef WITH_SPEEDDIAL
loadmodule "speeddial.so"
#!endif


#!ifdef WITH_PRESENCE
loadmodule "presence.so"
loadmodule "presence_xml.so"
#!endif


#!ifdef WITH_NAT
loadmodule "nathelper.so"
loadmodule "rtpproxy.so"
#!endif

#!ifdef WITH_TLS
loadmodule "tls.so"
#!endif

#!ifdef WITH_ANTIFLOOD
loadmodule "htable.so"
loadmodule "pike.so"
#!endif

#!ifdef WITH_XMLRPC
loadmodule "xmlrpc.so"
#!endif

#!ifdef WITH_DEBUG
loadmodule "debugger.so"
#!endif


#asterisk
loadmodule "uac.so"

loadmodule "dispatcher.so"


# ----------------- setting module-specific parameters ---------------

### managed by puppet[kamailio] ###

modparam("lcr","db_url", DBURL)
modparam("lcr","lcr_gw_table","lcr_gw")
modparam("lcr","tag_column","tag")
modparam("lcr","weight_column","weight")
modparam("lcr","flags_column","flags")
modparam("lcr","gw_name_column","gw_name")
modparam("lcr","ip_addr_column","ip_addr")
modparam("lcr","port_column","port")
modparam("lcr","hostname_column","hostname")
modparam("lcr","uri_scheme_column","uri_scheme")
modparam("lcr","strip_column","strip")
modparam("lcr","transport_column","transport")
modparam("lcr","lcr_rule_table","lcr_rule")
modparam("lcr","prefix_column","prefix")
modparam("lcr","from_uri_column","from_uri")
modparam("lcr","priority_column","priority")
modparam("lcr","gw_uri_avp", "$avp(i:709)")
modparam("lcr","ruri_user_avp", "$avp(i:500)")
modparam("lcr", "flags_avp", "$avp(i:712)")
modparam("lcr", "lcr_rule_target_table", "lcr_rule_target")
#modparam("lcr", "rpid_avp", "$avp(i:302)")
#modparam("^auth$|lcr", "rpid_avp", "$avp(i:302)")




### managed by puppet[kamailio] ###

# ------- Load-balancer params ------
modparam("dispatcher", "db_url", DBURL)
modparam("dispatcher", "table_name", "dispatcher")
modparam("dispatcher", "setid_col", "setid")
modparam("dispatcher", "destination_col", "destination")
## Dispatcher: Overwrite Destination address, if required.
modparam("dispatcher", "force_dst", 1)
## Dispatcher: Enable Failover-Support
modparam("dispatcher", "flags", 3)
#modparam("dispatcher", "flags", 2)
## AVP's required for Fail-Over-Support:
modparam("dispatcher", "dst_avp", "$avp(i:271)")
modparam("dispatcher", "grp_avp", "$avp(i:272)")
modparam("dispatcher", "cnt_avp", "$avp(i:273)")
modparam("dispatcher", "hash_pvar", "$avp(273)")
modparam("dispatcher", "ds_ping_from", "sip:proxy at myip")
## Try to recover disabled destinations every 15 seconds.
modparam("dispatcher", "ds_ping_interval",15)
## Actively query the gateways:
modparam("dispatcher", "ds_probing_mode", 0)
#modparam("dispatcher", "ds_probing_mode", 1)
modparam("dispatcher", "ds_ping_reply_codes", "class=2;code=403;code=404;code=484;class=3")



# ----- mi_fifo params -----
modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")


# ----- tm params -----
# auto-discard branches from previous serial forking leg
modparam("tm", "failure_reply_mode", 3)
# default retransmission timeout: 30sec
modparam("tm", "fr_timer", 30000)
# default invite retransmission timeout after 1xx: 120sec
modparam("tm", "fr_inv_timer", 120000)
# Don't reply automatically with "100 Trying"
modparam("tm", "auto_inv_100", 1)
### managed by puppet[kamailio] ###
# multihomed host so turn off
modparam("tm", "reparse_on_dns_failover", 0)

# ----- rr params -----
# add value to ;lr param to cope with most of the UAs
modparam("rr", "enable_full_lr", 1)
# do not append from tag to the RR (no need for this script)

modparam("rr", "append_fromtag", 1)


# ----- registrar params -----
modparam("registrar", "method_filtering", 1)
/* uncomment the next line to disable parallel forking via location */
# modparam("registrar", "append_branches", 0)
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)
# max value for expires of registrations
modparam("registrar", "max_expires", 3600)
# set it to 1 to enable GRUU
modparam("registrar", "gruu_enabled", 0)


# ----- acc params -----
/* what special events should be accounted ? */
modparam("acc", "early_media", 0)
modparam("acc", "report_ack", 0)
modparam("acc", "report_cancels", 0)
/* by default ww do not adjust the direct of the sequential requests.
   if you enable this parameter, be sure the enable "append_fromtag"
   in "rr" module */
modparam("acc", "detect_direction", 0)
/* account triggers (flags) */
modparam("acc", "log_flag", FLT_ACC)
modparam("acc", "log_missed_flag", FLT_ACCMISSED)
modparam("acc", "log_extra",
        "src_user=$fU;src_domain=$fd;src_ip=$si;"
        "dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")
modparam("acc", "failed_transaction_flag", FLT_ACCFAILED)
/* enhanced DB accounting */
#!ifdef WITH_ACCDB
modparam("acc", "db_flag", FLT_ACC)
modparam("acc", "db_missed_flag", FLT_ACCMISSED)
modparam("acc", "db_url", DBURL)
modparam("acc", "db_extra",
        "src_user=$fU;src_domain=$fd;src_ip=$si;"
        "dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")
#!endif


# ----- usrloc params -----
/* enable DB persistency for location entries */
#!ifdef WITH_USRLOCDB
modparam("usrloc", "db_url", DBURL)
modparam("usrloc", "db_mode", 2)
modparam("usrloc", "use_domain", MULTIDOMAIN)
#!endif



# ----- auth_db params -----
#!ifdef WITH_AUTH
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "load_credentials", "")


modparam("auth_db", "user_column", "name")
modparam("auth_db", "password_column", "sippasswd")
modparam("auth_db", "db_url", DBASTURL)
modparam("auth_db", "version_table", 0)


# ----- permissions params -----
#!ifdef WITH_IPAUTH
modparam("permissions", "db_url", DBURL)
modparam("permissions", "db_mode", 1)
#!endif

#!endif



# ----- alias_db params -----
#!ifdef WITH_ALIASDB
modparam("alias_db", "db_url", DBURL)
modparam("alias_db", "use_domain", MULTIDOMAIN)
#!endif


# ----- speedial params -----
#!ifdef WITH_SPEEDDIAL
modparam("speeddial", "db_url", DBURL)
modparam("speeddial", "use_domain", MULTIDOMAIN)
#!endif




#!ifdef WITH_PRESENCE
# ----- presence params -----
modparam("presence", "db_url", DBURL)

# ----- presence_xml params -----
modparam("presence_xml", "db_url", DBURL)
modparam("presence_xml", "force_active", 1)
#!endif


#!ifdef WITH_NAT
# ----- rtpproxy params -----
modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722")

# ----- nathelper params -----
modparam("nathelper", "natping_interval", 30)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
### managed by puppet[kamailio] ###
modparam("nathelper", "sipping_from", "sip:pinger at myip")

# params needed for NAT traversal in other modules
modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")
modparam("usrloc", "nat_bflag", FLB_NATB)
#!endif


#!ifdef WITH_TLS
# ----- tls params -----
modparam("tls", "config", "/usr/local/etc/kamailio/tls.cfg")
#!endif

#!ifdef WITH_ANTIFLOOD
# ----- pike params -----
modparam("pike", "sampling_time_unit", 2)
modparam("pike", "reqs_density_per_unit", 16)
modparam("pike", "remove_latency", 4)

# ----- htable params -----
# ip ban htable with autoexpire after 5 minutes
modparam("htable", "htable", "ipban=>size=8;autoexpire=300;")
#!endif

#!ifdef WITH_XMLRPC
# ----- xmlrpc params -----
modparam("xmlrpc", "route", "XMLRPC");
modparam("xmlrpc", "url_match", "^/RPC")
#!endif

#!ifdef WITH_DEBUG
# ----- debugger params -----
modparam("debugger", "cfgtrace", 1)
#!endif

####### Routing Logic ########


# Main SIP request routing logic
# - processing of any incoming SIP request starts with this route
# - note: this is the same as route { ... }
request_route {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","sip body $rb\n");
#!endif

        # per request initial checks
        route(REQINIT);


        # NAT detection
        route(NATDETECT);

        # handle requests within SIP dialogs
        route(WITHINDLG);

        ### only initial requests (no To tag)

#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","PRE CANCEL\n");
#!endif
        # CANCEL processing
        if (is_method("CANCEL"))
        {
                if (t_check_trans())
                        t_relay();
                exit;
        }

        t_check_trans();

        # authentication
        route(AUTH);

#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO", "SCRIPT: SIP $rm from: $fu to: $ru - srcip: $si rU: $rU\n");
#!endif

        # record routing for dialog forming requests (in case they are routed)
        # - remove preloaded route headers
        remove_hf("Route");
        if (is_method("INVITE|SUBSCRIBE"))
                record_route();

        # account only INVITEs
        if (is_method("INVITE"))
        {
                setflag(FLT_ACC); # do accounting
        }

        # dispatch requests to foreign domains
        route(SIPOUT);

        ### requests for my local domains

        # handle presence related requests
        route(PRESENCE);

        # handle registrations
        route(REGISTRAR);

        if ($rU==$null)
        {
                # request with no Username in RURI
                sl_send_reply("484","Address Incomplete");
                exit;
        }

        # user location service
        route(LOCATION);

        route(RELAY);
}


route[RELAY] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[RELAY]\n");
#!endif

        # enable additional event routes for forwarded requests
        # - serial forking, RTP relaying handling, a.s.o.
        if (is_method("INVITE|SUBSCRIBE")) {
                t_on_branch("MANAGE_BRANCH");
                t_on_reply("MANAGE_REPLY");
        }
        if (is_method("INVITE"))
        {
                t_on_failure("MANAGE_FAILURE");
        }

        if (!t_relay()) {
                sl_reply_error();
        }
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO", "RELAYED SIP $rm from: $fu to: $ru - srcip:$si rU:$rU fU:$fU\n");
#!endif
        exit;
}

# Per SIP request initial checks
route[REQINIT] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[REQINIT]\n");
#!endif
#!ifdef WITH_ANTIFLOOD
        # flood dection from same IP and traffic ban for a while
        # be sure you exclude checking trusted peers, such as pstn gateways
        # - local host excluded (e.g., loop to self)
        if(src_ip!=myself)
        {
                if($sht(ipban=>$si)!=$null)
                {
                        # ip is already blocked
                        xdbg("request from blocked IP - $rm from $fu (IP:$si:$sp)\n");
                        exit;
                }
                if (!pike_check_req())
                {
                        xlog("L_ALERT","ALERT: pike blocking $rm from $fu (IP:$si:$sp)\n");
                        $sht(ipban=>$si) = 1;
                        exit;
                }
        }
#!endif

        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483","Too Many Hops");
                exit;
        }

        if(!sanity_check("1511", "7"))
        {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO", "Malformed SIP message from $si:$sp\n");
#!endif
                xlog("Malformed SIP message from $si:$sp\n");
                exit;
        }
}

# Handle requests within SIP dialogs
route[WITHINDLG] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[WITHINDLG]\n");
#!endif
        if (has_totag()) {
                # sequential request withing a dialog should
                # take the path determined by record-routing
                if (loose_route()) {
                        #record_route();
                        if (is_method("BYE")) {

                                setflag(FLT_ACC); # do accounting ...
                                setflag(FLT_ACCFAILED); # ... even if the transaction fails
                        }
                        if ( is_method("ACK") ) {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","ACK is forwarded statelessy\n");
#!endif

                                # ACK is forwarded statelessy
                                route(NATMANAGE);

                                ;
                        }
                        route(RELAY);
                } else {
                        if (is_method("SUBSCRIBE") && uri == myself) {
                                # in-dialog subscribe requests
                                route(PRESENCE);
                                exit;
                        }
                        if ( is_method("ACK") ) {
                                if ( t_check_trans() ) {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","ACK no loose-route\n");
#!endif
                                        # no loose-route, but stateful ACK;
                                        # must be an ACK after a 487
                                        # or e.g. 404 from upstream server
                                        t_relay();
                                        exit;
                                } else {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","ACK without mathcing transaction ... ignore and discard\n");
#!endif
                                        # ACK without matching transaction ... ignore and discard
                                        exit;
                                }
                        }
#!ifdef WITH_CONFIG_DEBUG
                        xlog("L_INFO","404 Not here\n");
#!endif
                        sl_send_reply("404","Not here");
                }
                exit;
        }
}

# Handle SIP registrations
route[REGISTRAR] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[REGISTRAR]\n");
#!endif
        if (is_method("REGISTER"))
        {
                if(isflagset(FLT_NATS))
                {
                        setbflag(FLB_NATB);
                        # uncomment next line to do SIP NAT pinging
                         setbflag(FLB_NATSIPPING);
                }
                if (!save("location"))
                        sl_reply_error();

#                route(REGFWD);

                exit;
        }
}

# USER location service
route[LOCATION] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[LOCATION]\n");
#!endif

#!ifdef WITH_SPEEDIAL
        # search for short dialing - 2-digit extension
        if($rU=~"^[0-9][0-9]$")
                if(sd_lookup("speed_dial"))
                        route(SIPOUT);
#!endif

#!ifdef WITH_ALIASDB
        # search in DB-based aliases
        if(alias_db_lookup("dbaliases"))
                route(SIPOUT);
#!endif


        if(is_method("INVITE") && (!route(FROMASTERISK))) {
                # if new call from out there - send to Asterisk
                # - non-INVITE request are routed directly by Kamailio
                # - traffic from Asterisk is routed also directy by Kamailio
                route(TOASTERISK);
                exit;
        }


        $avp(oexten) = $rU;
        if (!lookup("location")) {
                $var(rc) = $rc;

                t_newtran();
                switch ($var(rc)) {
                        case -1:
                        case -3:
                                send_reply("404", "Not Found");
                                exit;
                        case -2:
                                send_reply("405", "Method Not Allowed");
                                exit;
                }
        }

        # when routing via usrloc, log the missed calls also
        if (is_method("INVITE"))
        {
                setflag(FLT_ACCMISSED);
        }
}

# Presence server route
route[PRESENCE] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[PRESENCE]\n");
#!endif
        if(!is_method("PUBLISH|SUBSCRIBE"))
                return;

#!ifdef WITH_PRESENCE
        if (!t_newtran())
        {
                sl_reply_error();
                exit;
        };

        if(is_method("PUBLISH"))
        {
                handle_publish();
                t_release();
        }
        else
        if( is_method("SUBSCRIBE"))
        {
                handle_subscribe();
                t_release();
        }
        exit;
#!endif

        # if presence enabled, this part will not be executed
        if (is_method("PUBLISH") || $rU==$null)
        {
                sl_send_reply("404", "Not here");
                exit;
        }
        return;
}

# Authentication route
route[AUTH] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[AUTH]\n");
#!endif
#!ifdef WITH_AUTH


        # do not auth traffic from Asterisk - trusted!
        if(route(FROMASTERISK))
        {
                return;
        }


        if(from_any_gw($si, 0))
        {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","from gateway\n");
#!endif
                return;
        }

#!ifdef WITH_IPAUTH
        if((!is_method("REGISTER")) && allow_source_address())
        {
                # source IP allowed
                return;
        }
#!endif

#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","from uri: $fu\n");
        xlog("L_INFO","original uri: $ou\n");
        xlog("L_INFO","source ip: $si\n");
        xlog("L_INFO","from uri domain: $fd\n");
#!endif
        if (is_method("REGISTER") || from_uri==myself)
        {
                # authenticate requests

                if (!auth_check("$fd", "sipusers", "1")) {

                        auth_challenge("$fd", "0");
                        exit;
                }
                # user authenticated - remove auth header
                if(!is_method("REGISTER|PUBLISH"))
                        consume_credentials();
        }
        # if caller is not local subscriber, then check if it calls
        # a local destination, otherwise deny, not an open relay here
        if (from_uri!=myself && uri!=myself)
        {
#!ifdef WITH_CONFIG_DEBUG
                xlog("L_INFO","403, not relaying. uri: $ou\n");
#!endif
                sl_send_reply("403","Not relaying");
                exit;
        }

#!endif
        return;
}



# Caller NAT detection route
route[NATDETECT] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[NATDETECT]\n");
#!endif
#!ifdef WITH_NAT
        force_rport();
        if (nat_uac_test("19")) {
                if (is_method("REGISTER")) {
                        fix_nated_register();
                } else {
                        fix_nated_contact();
                }
                setflag(FLT_NATS);
        }
#!endif
        return;
}

# RTPProxy control
route[NATMANAGE] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[NATMANAGE]\n");
#!endif
#!ifdef WITH_NAT
        if (is_request()) {
                if(has_totag()) {
                        if(check_route_param("nat=yes")) {
                                setbflag(FLB_NATB);
                        }
                }
        }
        if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))
                return;

        #route(RTPPROXY);
        rtpproxy_manage();

        if (is_request()) {
                if (!has_totag()) {
                        add_rr_param(";nat=yes");
                }
        }
        if (is_reply()) {
                if(isbflagset(FLB_NATB)) {
                        fix_nated_contact();
                }
        }
#!endif
        return;
}



# Routing to foreign domains
route[SIPOUT] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[SIPOUT]\n");
#!endif

        if(from_any_gw($si, 0))
        {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","from gateway\n");
#!endif
                return;
        }

        if (uri==myself && !is_method("OPTIONS"))
        {

#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","ru:$ru\n");
        xlog("L_INFO","load_gws\n");
#!endif
if (!load_gws(1, $rU, $var(caller_uri))) {
#if (!load_gws("$var(caller_uri)")) {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","Internal server error, unable to load gateways\n");
#!endif
  sl_send_reply("500", "Internal server error, unable to load gateways");
  exit;
}

#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","ru:$ru\n");
        xlog("L_INFO","next_gw\n");
#!endif
if (!next_gw()){
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","Service not available, no gateways found\n");
#!endif
  sl_send_reply("503", "Service not available, no gateways found");
  exit;
}

#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","ru:$ru\n");
#!endif
                route(RELAY);
        }

#        route(TOUPSTREAMSIP);

        if (!uri==myself)
        {
                append_hf("P-hint: outbound\r\n");
                route(RELAY);
        }
}



# XMLRPC routing
#!ifdef WITH_XMLRPC
route[XMLRPC] {
        # allow XMLRPC from localhost
        if ((method=="POST" || method=="GET")
                        && (src_ip==127.0.0.1)) {
                # close connection only for xmlrpclib user agents (there is a bug in
                # xmlrpclib: it waits for EOF before interpreting the response).
                if ($hdr(User-Agent) =~ "xmlrpclib")
                        set_reply_close();
                set_reply_no_connect();
                dispatch_rpc();
                exit;
        }
        send_reply("403", "Forbidden");
        exit;
}
#!endif


# manage outgoing branches
branch_route[MANAGE_BRANCH] {
        xdbg("new branch [$T_branch_idx] to $ru\n");

        route(NATMANAGE);

}

# manage incoming replies
onreply_route[MANAGE_REPLY] {
        xdbg("incoming reply\n");

        if(status=~"[12][0-9][0-9]")
                route(NATMANAGE);

}

# manage failure routing cases
failure_route[MANAGE_FAILURE] {

        route(NATMANAGE);

        if (t_is_canceled()) {
                exit;
        }

#!ifdef WITH_BLOCK3XX
        # block call redirect based on 3xx replies.
        if (t_check_status("3[0-9][0-9]")) {
                t_reply("404","Not found");
                exit;
        }
#!endif


}



# Test if coming from Asterisk
route[FROMASTERISK] {
        if(ds_is_from_list()){
#               rtpproxy_manage("cawie");
#!ifdef WITH_CONFIG_DEBUG
                xlog("L_INFO","[$fU@$si:$sp]{$rm} Call from Media-Server Cluster header: $fu\n");
#!endif
                return 1;
        }
        return -1;
}

# Send to Asterisk
route[TOASTERISK] {
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","route[TOASTERISK]\n");
#!endif
        ds_mark_dst("P");
        if(!ds_select_dst("1", "4")) {
#               ds_mark_dst("IP");
                sl_send_reply("500", "Service Unavailable");
                xlog("L_INFO","[$fU@$si:$sp]{$rm} No destinations available for $rd \n");
                exit;
        }
#!ifdef WITH_CONFIG_DEBUG
        xlog("L_INFO","[$fU@$si:$sp]{$rm} From Outside World to Asterisk Box $du\n");
#!endif
        t_on_failure("RTF_DISPATCH");
        route(RELAY);
        exit;
}


# Sample failure route
failure_route[RTF_DISPATCH] {
        if (t_is_canceled()) {
                exit;
        }
        # next DST - only for 500 or local timeout
        if (t_check_status("500")
                        or (t_branch_timeout() and !t_branch_replied()))
        {
                if(ds_next_dst())
                {
                        t_on_failure("RTF_DISPATCH");
                        route(RELAY);
                        exit;
                }
        }
}
-------------- next part --------------
Jun 10 13:13:10 	INFO: <script>: sip body v=0#015#012o=root 1691901295 1691901295 IN IP4 0.provider.ip.0#015#012s=Asterisk PBX 1.6.1.20#015#012c=IN IP4 0.provider.ip.0#015#012t=0 0#015#012m=audio 17478 RTP/AVP 0 8 3 18 9 101#015#012a=rtpmap:0 PCMU/8000#015#012a=rtpmap:8 PCMA/8000#015#012a=rtpmap:3 GSM/8000#015#012a=rtpmap:18 G729/8000#015#012a=fmtp:18 annexb=no#015#012a=rtpmap:9 G722/8000#015#012a=rtpmap:101 telephone-event/8000#015#012a=fmtp:101 0-16#015#012a=silenceSupp:off - - - -#015#012a=ptime:20#015#012a=sendrecv#015#012
Jun 10 13:13:10 	INFO: <script>: route[REQINIT]
Jun 10 13:13:10 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:10 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:10 	INFO: <script>: PRE CANCEL
Jun 10 13:13:10 	INFO: <script>: route[AUTH]
Jun 10 13:13:10 	INFO: <script>: from gateway
Jun 10 13:13:10 	INFO: <script>: SCRIPT: SIP INVITE from: sip:0.caller.did.0 at 0.provider.ip.0 to: sip:0.my.did.0 at 0.my.ip.0:5060 - srcip: 0.provider.ip.0 rU: 0.my.did.0
Jun 10 13:13:10 	INFO: <script>: route[SIPOUT]
Jun 10 13:13:10 	INFO: <script>: from gateway
Jun 10 13:13:10 	INFO: <script>: route[PRESENCE]
Jun 10 13:13:10 	INFO: <script>: route[REGISTRAR]
Jun 10 13:13:10 	INFO: <script>: route[LOCATION]
Jun 10 13:13:10 	INFO: <script>: route[TOASTERISK]
Jun 10 13:13:10 	INFO: <script>: [0.caller.did.0 at 0.provider.ip.0:5060]{INVITE} From Outside World to Asterisk Box sip:0.asterisk1.ip.0:5060
Jun 10 13:13:10 	INFO: <script>: route[RELAY]
Jun 10 13:13:10 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:10 	INFO: <script>: RELAYED SIP INVITE from: sip:0.caller.did.0 at 0.provider.ip.0 to: sip:0.my.did.0 at 0.my.ip.0:5060 - srcip:0.provider.ip.0 rU:0.my.did.0 fU:0.caller.did.0
Jun 10 13:13:10 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:10 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:11 	INFO: <script>: sip body
Jun 10 13:13:11 	INFO: <script>: route[REQINIT]
Jun 10 13:13:11 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:11 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:11 	INFO: <script>: PRE CANCEL
Jun 10 13:13:11 	INFO: <script>: route[AUTH]
Jun 10 13:13:11 	INFO: <script>: [asterisk at 0.asterisk1.ip.0:5060]{OPTIONS} Call from Media-Server Cluster header: sip:asterisk at 0.asterisk1.ip.0
Jun 10 13:13:11 	INFO: <script>: SCRIPT: SIP OPTIONS from: sip:asterisk at 0.asterisk1.ip.0 to: sip:0.my.ip.0 - srcip: 0.asterisk1.ip.0 rU: <null>
Jun 10 13:13:11 	INFO: <script>: route[SIPOUT]
Jun 10 13:13:11 	INFO: <script>: route[PRESENCE]
Jun 10 13:13:11 	INFO: <script>: route[REGISTRAR]
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	acc_log_request(): ACC: transaction answered: timestamp=1402398799;method=INVITE;from_tag=as22157abb;to_tag=as7bba6270;call_id=61c5accd6f35ffc4074fb3bd080d64be at 0.provider.ip.0;code=200;reason=OK;src_user=0.caller.did.0;src_domain=0.provider.ip.0;src_ip=0.provider.ip.0;dst_ouser=0.my.did.0;dst_user=0.my.did.0;dst_domain=0.my.ip.0
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK is forwarded statelessy
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	INFO: <script>: route[RELAY]
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK without mathcing transaction ... ignore and discard
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK is forwarded statelessy
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	INFO: <script>: route[RELAY]
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK without mathcing transaction ... ignore and discard
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK is forwarded statelessy
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	INFO: <script>: route[RELAY]
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK without mathcing transaction ... ignore and discard
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK is forwarded statelessy
Jun 10 13:13:19 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:19 	INFO: <script>: route[RELAY]
Jun 10 13:13:19 	INFO: <script>: sip body
Jun 10 13:13:19 	INFO: <script>: route[REQINIT]
Jun 10 13:13:19 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:19 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:19 	INFO: <script>: ACK without mathcing transaction ... ignore and discard
Jun 10 13:13:20 	INFO: <script>: sip body
Jun 10 13:13:20 	INFO: <script>: route[REQINIT]
Jun 10 13:13:20 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:20 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:20 	INFO: <script>: PRE CANCEL
Jun 10 13:13:20 	INFO: <script>: route[AUTH]
Jun 10 13:13:20 	INFO: <script>: [asterisk at 0.asterisk2.ip.0:5060]{OPTIONS} Call from Media-Server Cluster header: sip:asterisk at 0.asterisk2.ip.0
Jun 10 13:13:20 	INFO: <script>: SCRIPT: SIP OPTIONS from: sip:asterisk at 0.asterisk2.ip.0 to: sip:0.my.ip.0 - srcip: 0.asterisk2.ip.0 rU: <null>
Jun 10 13:13:20 	INFO: <script>: route[SIPOUT]
Jun 10 13:13:20 	INFO: <script>: route[PRESENCE]
Jun 10 13:13:20 	INFO: <script>: route[REGISTRAR]
Jun 10 13:13:20 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:20 	INFO: <script>: sip body
Jun 10 13:13:20 	INFO: <script>: route[REQINIT]
Jun 10 13:13:20 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:20 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:20 	INFO: <script>: ACK is forwarded statelessy
Jun 10 13:13:20 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:20 	INFO: <script>: route[RELAY]
Jun 10 13:13:20 	INFO: <script>: sip body
Jun 10 13:13:20 	INFO: <script>: route[REQINIT]
Jun 10 13:13:20 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:20 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:20 	INFO: <script>: ACK without mathcing transaction ... ignore and discard
Jun 10 13:13:22 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:22 	INFO: <script>: sip body
Jun 10 13:13:22 	INFO: <script>: route[REQINIT]
Jun 10 13:13:22 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:22 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:22 	INFO: <script>: ACK is forwarded statelessy
Jun 10 13:13:22 	INFO: <script>: route[NATMANAGE]
Jun 10 13:13:22 	INFO: <script>: route[RELAY]
Jun 10 13:13:22 	INFO: <script>: sip body
Jun 10 13:13:22 	INFO: <script>: route[REQINIT]
Jun 10 13:13:22 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:22 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:22 	INFO: <script>: ACK without mathcing transaction ... ignore and discard
Jun 10 13:13:25 	INFO: <script>: sip body
Jun 10 13:13:25 	INFO: <script>: route[REQINIT]
Jun 10 13:13:25 	INFO: <script>: route[NATDETECT]
Jun 10 13:13:25 	INFO: <script>: route[WITHINDLG]
Jun 10 13:13:25 	INFO: <script>: route[RELAY]
Jun 10 13:13:25 	INFO: <script>: RELAYED SIP BYE from: sip:0.my.did.0 at 0.provider.ip.0:5060 to: sip:0.caller.did.0 at 0.provider.ip.0:5060 - srcip:0.asterisk1.ip.0 rU:0.caller.did.0 fU:0.my.did.0
Jun 10 13:13:25 	acc_log_request(): ACC: transaction answered: timestamp=1402398805;method=BYE;from_tag=as7bba6270;to_tag=as22157abb;call_id=61c5accd6f35ffc4074fb3bd080d64be at 0.provider.ip.0;code=200;reason=OK;src_user=0.my.did.0;src_domain=0.provider.ip.0;src_ip=0.asterisk1.ip.0;dst_ouser=0.caller.did.0;dst_user=0.caller.did.0;dst_domain=0.provider.ip.0
-------------- next part --------------
No.     Time        Source                Destination           Protocol Length Info
     32 1.765583    0.provider.ip.0          0.my.ip.0         SIP/SDP  1175   Request: INVITE sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 32: 1175 bytes on wire (9400 bits), 1175 bytes captured (9400 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (INVITE)

No.     Time        Source                Destination           Protocol Length Info
     37 1.767831    0.my.ip.0         0.provider.ip.0          SIP      418    Status: 100 trying -- your call is important to us | 

Frame 37: 418 bytes on wire (3344 bits), 418 bytes captured (3344 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (100)

No.     Time        Source                Destination           Protocol Length Info
     38 1.768689    0.my.ip.0         0.asterisk1.ip.0         SIP/SDP  1329   Request: INVITE sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 38: 1329 bytes on wire (10632 bits), 1329 bytes captured (10632 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.asterisk1.ip.0 (0.asterisk1.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (INVITE)

No.     Time        Source                Destination           Protocol Length Info
     43 1.780565    0.asterisk1.ip.0         0.my.ip.0         SIP      808    Status: 100 Trying | 

Frame 43: 808 bytes on wire (6464 bits), 808 bytes captured (6464 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (100)

No.     Time        Source                Destination           Protocol Length Info
     46 1.832381    0.asterisk1.ip.0         0.my.ip.0         SIP      824    Status: 180 Ringing | 

Frame 46: 824 bytes on wire (6592 bits), 824 bytes captured (6592 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (180)

No.     Time        Source                Destination           Protocol Length Info
     47 1.833091    0.my.ip.0         0.provider.ip.0          SIP      715    Status: 180 Ringing | 

Frame 47: 715 bytes on wire (5720 bits), 715 bytes captured (5720 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (180)

No.     Time        Source                Destination           Protocol Length Info
     53 2.330029    0.asterisk1.ip.0         0.my.ip.0         SIP      571    Request: OPTIONS sip:0.my.ip.0 | 

Frame 53: 571 bytes on wire (4568 bits), 571 bytes captured (4568 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (OPTIONS)

No.     Time        Source                Destination           Protocol Length Info
     55 2.330803    0.my.ip.0         0.asterisk1.ip.0         SIP      419    Status: 484 Address Incomplete | 

Frame 55: 419 bytes on wire (3352 bits), 419 bytes captured (3352 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.asterisk1.ip.0 (0.asterisk1.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (484)

No.     Time        Source                Destination           Protocol Length Info
    130 10.274897   0.asterisk1.ip.0         0.my.ip.0         SIP/SDP  1179   Status: 200 OK | 

Frame 130: 1179 bytes on wire (9432 bits), 1179 bytes captured (9432 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    132 10.275687   0.my.ip.0         0.provider.ip.0          SIP/SDP  1070   Status: 200 OK | 

Frame 132: 1070 bytes on wire (8560 bits), 1070 bytes captured (8560 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    136 10.280477   0.provider.ip.0          0.my.ip.0         SIP      506    Request: ACK sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 136: 506 bytes on wire (4048 bits), 506 bytes captured (4048 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    141 10.281479   0.my.ip.0         0.my.ip.0         SIP      558    Request: ACK sip:0.my.ip.0;lr=on;ftag=as22157abb | 

Frame 141: 558 bytes on wire (4464 bits), 558 bytes captured (4464 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    148 10.374484   0.asterisk1.ip.0         0.my.ip.0         SIP/SDP  1179   Status: 200 OK | 

Frame 148: 1179 bytes on wire (9432 bits), 1179 bytes captured (9432 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    150 10.375315   0.my.ip.0         0.provider.ip.0          SIP/SDP  1070   Status: 200 OK | 

Frame 150: 1070 bytes on wire (8560 bits), 1070 bytes captured (8560 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    153 10.377908   0.provider.ip.0          0.my.ip.0         SIP      506    Request: ACK sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 153: 506 bytes on wire (4048 bits), 506 bytes captured (4048 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    162 10.379635   0.my.ip.0         0.my.ip.0         SIP      558    Request: ACK sip:0.my.ip.0;lr=on;ftag=as22157abb | 

Frame 162: 558 bytes on wire (4464 bits), 558 bytes captured (4464 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    170 10.574718   0.asterisk1.ip.0         0.my.ip.0         SIP/SDP  1179   Status: 200 OK | 

Frame 170: 1179 bytes on wire (9432 bits), 1179 bytes captured (9432 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    171 10.575324   0.my.ip.0         0.provider.ip.0          SIP/SDP  1070   Status: 200 OK | 

Frame 171: 1070 bytes on wire (8560 bits), 1070 bytes captured (8560 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    174 10.577976   0.provider.ip.0          0.my.ip.0         SIP      506    Request: ACK sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 174: 506 bytes on wire (4048 bits), 506 bytes captured (4048 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    178 10.578771   0.my.ip.0         0.my.ip.0         SIP      558    Request: ACK sip:0.my.ip.0;lr=on;ftag=as22157abb | 

Frame 178: 558 bytes on wire (4464 bits), 558 bytes captured (4464 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    186 10.975473   0.asterisk1.ip.0         0.my.ip.0         SIP/SDP  1179   Status: 200 OK | 

Frame 186: 1179 bytes on wire (9432 bits), 1179 bytes captured (9432 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    188 10.976260   0.my.ip.0         0.provider.ip.0          SIP/SDP  1070   Status: 200 OK | 

Frame 188: 1070 bytes on wire (8560 bits), 1070 bytes captured (8560 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    190 10.979056   0.provider.ip.0          0.my.ip.0         SIP      506    Request: ACK sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 190: 506 bytes on wire (4048 bits), 506 bytes captured (4048 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    195 10.979932   0.my.ip.0         0.my.ip.0         SIP      558    Request: ACK sip:0.my.ip.0;lr=on;ftag=as22157abb | 

Frame 195: 558 bytes on wire (4464 bits), 558 bytes captured (4464 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    200 11.127508   0.asterisk2.ip.0         0.my.ip.0         SIP      571    Request: OPTIONS sip:0.my.ip.0 | 

Frame 200: 571 bytes on wire (4568 bits), 571 bytes captured (4568 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk2.ip.0 (0.asterisk2.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (OPTIONS)

No.     Time        Source                Destination           Protocol Length Info
    202 11.128297   0.my.ip.0         0.asterisk2.ip.0         SIP      419    Status: 484 Address Incomplete | 

Frame 202: 419 bytes on wire (3352 bits), 419 bytes captured (3352 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.asterisk2.ip.0 (0.asterisk2.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (484)

No.     Time        Source                Destination           Protocol Length Info
    210 11.775329   0.asterisk1.ip.0         0.my.ip.0         SIP/SDP  1179   Status: 200 OK | 

Frame 210: 1179 bytes on wire (9432 bits), 1179 bytes captured (9432 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    211 11.776042   0.my.ip.0         0.provider.ip.0          SIP/SDP  1070   Status: 200 OK | 

Frame 211: 1070 bytes on wire (8560 bits), 1070 bytes captured (8560 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    214 11.778671   0.provider.ip.0          0.my.ip.0         SIP      506    Request: ACK sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 214: 506 bytes on wire (4048 bits), 506 bytes captured (4048 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    219 11.779536   0.my.ip.0         0.my.ip.0         SIP      558    Request: ACK sip:0.my.ip.0;lr=on;ftag=as22157abb | 

Frame 219: 558 bytes on wire (4464 bits), 558 bytes captured (4464 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    231 13.375220   0.asterisk1.ip.0         0.my.ip.0         SIP/SDP  1179   Status: 200 OK | 

Frame 231: 1179 bytes on wire (9432 bits), 1179 bytes captured (9432 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    232 13.375562   0.my.ip.0         0.provider.ip.0          SIP/SDP  1070   Status: 200 OK | 

Frame 232: 1070 bytes on wire (8560 bits), 1070 bytes captured (8560 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    235 13.378256   0.provider.ip.0          0.my.ip.0         SIP      506    Request: ACK sip:0.my.did.0 at 0.my.ip.0:5060 | 

Frame 235: 506 bytes on wire (4048 bits), 506 bytes captured (4048 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    237 13.378544   0.my.ip.0         0.my.ip.0         SIP      558    Request: ACK sip:0.my.ip.0;lr=on;ftag=as22157abb | 

Frame 237: 558 bytes on wire (4464 bits), 558 bytes captured (4464 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (ACK)

No.     Time        Source                Destination           Protocol Length Info
    267 16.574767   0.asterisk1.ip.0         0.my.ip.0         SIP/SDP  1179   Status: 200 OK | 

Frame 267: 1179 bytes on wire (9432 bits), 1179 bytes captured (9432 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    268 16.575059   0.my.ip.0         0.provider.ip.0          SIP/SDP  1070   Status: 200 OK | 

Frame 268: 1070 bytes on wire (8560 bits), 1070 bytes captured (8560 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    271 16.687370   0.asterisk1.ip.0         0.my.ip.0         SIP      599    Request: BYE sip:0.caller.did.0 at 0.provider.ip.0:5060 | 

Frame 271: 599 bytes on wire (4792 bits), 599 bytes captured (4792 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.asterisk1.ip.0 (0.asterisk1.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (BYE)

No.     Time        Source                Destination           Protocol Length Info
    273 16.688094   0.my.ip.0         0.provider.ip.0          SIP      654    Request: BYE sip:0.caller.did.0 at 0.provider.ip.0:5060 | 

Frame 273: 654 bytes on wire (5232 bits), 654 bytes captured (5232 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.provider.ip.0 (0.provider.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (BYE)

No.     Time        Source                Destination           Protocol Length Info
    279 16.693077   0.provider.ip.0          0.my.ip.0         SIP      608    Status: 200 OK | 

Frame 279: 608 bytes on wire (4864 bits), 608 bytes captured (4864 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.provider.ip.0 (0.provider.ip.0), Dst: 0.my.ip.0 (0.my.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)

No.     Time        Source                Destination           Protocol Length Info
    280 16.693286   0.my.ip.0         0.asterisk1.ip.0         SIP      522    Status: 200 OK | 

Frame 280: 522 bytes on wire (4176 bits), 522 bytes captured (4176 bits)
Linux cooked capture
Internet Protocol Version 4, Src: 0.my.ip.0 (0.my.ip.0), Dst: 0.asterisk1.ip.0 (0.asterisk1.ip.0)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
Session Initiation Protocol (200)


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