[SR-Users] RTP Proxy issue on Kamailio 4
Mahmoud Ramadan Ali
cisco.and.more.blog at gmail.com
Fri Oct 25 14:31:39 CEST 2013
Hello Carsten ,
*First i would like to thank u for answering my question and u r right
kamailio *
*adds the IP twice and i can see in the debugging that it recalls the
RTPproxy *
*script twice but i don't have experience with scripting so i don't know
what *
*modifications i need to do in the config file to fix this so i will be
thankful if u *
*made this modifications to the config file i will attach in the message...*
*i'm waiting ur reply and thanks in advance... *
On Fri, Oct 25, 2013 at 12:51 AM, Carsten Bock <carsten at ng-voice.com> wrote:
> Hi,
>
> it looks like you call
> > rtpproxy_manage("rwie");
> twice.
> In this case, you see the IP beeing added twice.
>
> Kind regards,
> Carsten
>
>
> 2013/10/24 Mahmoud Ramadan Ali <cisco.and.more.blog at gmail.com>:
> > Hello ,
> > This is the first time to put a question on sr-users mailing list and i
> > hope to help me to solve my issue...i'm following this post
> > http://saevolgo.blogspot.com/2013/08/rtpproxy-revisited-kamailio-40.htmlto
> > setup RTP Proxy for kamailio 4 but it's NOT working as predicted and i'm
> > receiving this error message on asterisk...
> >
> > [2013-10-16 05:20:04] ERROR[3216][C-0000002c]: netsock2.c:269
> > ast_sockaddr_resolve: getaddrinfo("192.168.1.80192.168.1.80", "(null)",
> > ...): Name or service not known
> > [2013-10-16 05:20:04] WARNING[3216][C-0000002c]: chan_sip.c:10873
> > process_sdp_c: Unable to lookup RTP Audio host in c= line, 'IN IP4
> > 192.168.1.80192.168.1.80'
> > [2013-10-16 05:20:04] WARNING[3216][C-0000002c]: chan_sip.c:10464
> > process_sdp: Insufficient information in SDP (c=)...
> >
> > The problem is NOT at the asterisk side but at the proxy side...when
> > kamailio rewrites the SDP message it adds the public IP twice in the "C"
> > filed of the SDP message instead of only one time like this 'IN IP4
> > 192.168.1.80192.168.1.80' but i don't know why it's doing this...? if u
> have
> > any idea or recommendations plz tell me cuz i'm new to
> kamailio...waiting ur
> > reply and thanks in advance... also here's my config file if u want to
> take
> > a look at it...
> >
> >
> > #!KAMAILIO
> >
> >
> >
> > #!define WITH_MYSQL
> >
> > #!define WITH_AUTH
> >
> > #!define WITH_USRLOCDB
> >
> > #!define WITH_ASTERISK
> >
> > #!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 mysql:
> >
> > # - define WITH_MYSQL
> >
> > #
> >
> > # *** 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 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 PSTN gateway routing execute:
> >
> > # - define WITH_PSTN
> >
> > # - set the value of pstn.gw_ip
> >
> > # - check route[PSTN] for regexp routing condition
> >
> > #
> >
> > # *** To enable database aliases lookup execute:
> >
> > # - enable mysql
> >
> > # - define WITH_ALIASDB
> >
> > #
> >
> > # *** To enable speed dial lookup execute:
> >
> > # - enable mysql
> >
> > # - define WITH_SPEEDDIAL
> >
> > #
> >
> > # *** To enable multi-domain support execute:
> >
> > # - enable mysql
> >
> > # - define WITH_MULTIDOMAIN
> >
> > #
> >
> > # *** 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
> >
> > #
> >
> > # *** 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
> >
> >
> >
> > ####### 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.
> >
> > #!define DBURL "mysql://kamailio:kamailiorw@localhost/kamailio"
> >
> > #!ifdef WITH_ASTERISK
> >
> > #!define DBASTURL "mysql://root:passw0rd@192.168.1.10/mya2billing"
> >
> > #!endif
> >
> > #!endif
> >
> > #!ifdef WITH_MULTIDOMAIN
> >
> > # - the value for 'use_domain' parameters
> >
> > #!define MULTIDOMAIN 1
> >
> > #!else
> >
> > #!define MULTIDOMAIN 0
> >
> > #!endif
> >
> >
> >
> > # - 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
> >
> >
> >
> > fork=yes
> >
> > children=4
> >
> >
> >
> > /* 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
> >
> >
> >
> > /* add local domain aliases */
> >
> > #alias="sip.mydomain.com"
> >
> >
> >
> > /* uncomment and configure the following line if you want Kamailio to
> >
> > bind on a specific interface/port/proto (default bind on all
> available)
> > */
> >
> > #listen=udp:10.0.0.10:5060
> >
> >
> >
> > /* port to listen to
> >
> > * - can be specified more than once if needed to listen on many ports */
> >
> > port=5060
> >
> >
> >
> > #!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
> >
> >
> >
> > mhomed=1
> >
> > ####### 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
> >
> > #
> >
> >
> >
> > #!ifdef WITH_PSTN
> >
> > # PSTN GW Routing
> >
> > #
> >
> > # - pstn.gw_ip: valid IP or hostname as string value, example:
> >
> > # pstn.gw_ip = "10.0.0.101" desc "My PSTN GW Address"
> >
> > #
> >
> > # - by default is empty to avoid misrouting
> >
> > pstn.gw_ip = "" desc "PSTN GW Address"
> >
> > #!endif
> >
> >
> >
> > #!ifdef WITH_VOICEMAIL
> >
> > # VoiceMail Routing on offline, busy or no answer
> >
> > #
> >
> > # - by default Voicemail server IP is empty to avoid misrouting
> >
> > voicemail.srv_ip = "" desc "VoiceMail IP Address"
> >
> > voicemail.srv_port = "5060" desc "VoiceMail Port"
> >
> > #!endif
> >
> >
> >
> >
> >
> > #!ifdef WITH_ASTERISK
> >
> > asterisk.bindip = "192.168.1.10" desc "Asterisk IP Address"
> >
> > asterisk.bindport = "5060" desc "Asterisk Port"
> >
> > kamailio.bindip = "192.168.1.40" desc "Kamailio IP Address"
> >
> > kamailio.bindport = "5060" desc "Kamailio Port"
> >
> > #!endif
> >
> >
> >
> > ####### 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/"
> >
> > #!endif
> >
> >
> >
> > #!ifdef WITH_MYSQL
> >
> > loadmodule "db_mysql.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"
> >
> > loadmodule "dispatcher.so"
> >
> > loadmodule "ipops.so"
> >
> > loadmodule "sqlops.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_MULTIDOMAIN
> >
> > loadmodule "domain.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
> >
> >
> >
> > #!ifdef WITH_ASTERISK
> >
> > loadmodule "uac.so"
> >
> > #!endif
> >
> >
> >
> > # ----------------- setting module-specific parameters ---------------
> >
> >
> >
> >
> >
> > # ----- 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)
> >
> >
> >
> >
> >
> > # ----- 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)
> >
> > #!ifdef WITH_ASTERISK
> >
> > modparam("rr", "append_fromtag", 1)
> >
> > #!else
> >
> > modparam("rr", "append_fromtag", 0)
> >
> > #!endif
> >
> >
> >
> > # ----- 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", "")
> >
> >
> >
> > #!ifdef WITH_ASTERISK
> >
> > modparam("auth_db", "user_column", "username")
> >
> > modparam("auth_db", "password_column", "secret")
> >
> > modparam("auth_db", "db_url", DBASTURL)
> >
> > modparam("auth_db", "version_table", 0)
> >
> > #!else
> >
> > modparam("auth_db", "db_url", DBURL)
> >
> > modparam("auth_db", "password_column", "password")
> >
> > modparam("auth_db", "use_domain", MULTIDOMAIN)
> >
> > #!endif
> >
> >
> >
> > # ----- 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
> >
> >
> >
> >
> >
> > # ----- domain params -----
> >
> > #!ifdef WITH_MULTIDOMAIN
> >
> > modparam("domain", "db_url", DBURL)
> >
> > # register callback to match myself condition with domains list
> >
> > modparam("domain", "register_myself", 1)
> >
> > #!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)
> >
> > modparam("nathelper", "sipping_from", "sip:pinger at kamailio.org")
> >
> >
> >
> > # 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
> >
> >
> >
> > # ------- Load-balancer params ------
> >
> > modparam("dispatcher",
> > "db_url","mysql://kamailio:kamailiorw@localhost/kamailio")
> >
> > modparam("dispatcher", "table_name", "dispatcher")
> >
> > modparam("dispatcher", "setid_col", "setid")
> >
> > modparam("dispatcher", "destination_col", "destination")
> >
> > modparam("dispatcher", "flags_col", "flags")
> >
> > modparam("dispatcher", "priority_col", "priority")
> >
> > modparam("dispatcher", "force_dst", 1)
> >
> > modparam("dispatcher", "flags", 2)
> >
> > modparam("dispatcher", "dst_avp", "$avp(i:271)")
> >
> > modparam("dispatcher", "grp_avp", "$avp(i:272)")
> >
> > modparam("dispatcher", "cnt_avp", "$avp(i:273)")
> >
> > modparam("dispatcher", "ds_ping_from", "sip:Kamailio-Proxy at 192.168.1.40
> ")
> >
> > modparam("dispatcher", "ds_ping_interval",15)
> >
> > modparam("dispatcher", "ds_probing_threshhold", 3)
> >
> > modparam("dispatcher", "ds_ping_method", "OPTIONS")
> >
> > modparam("dispatcher", "ds_probing_mode", 1)
> >
> > modparam("dispatcher", "ds_ping_reply_codes",
> > "class=2;code=403;code=404;code=484;class=3")
> >
> >
> > # ----- SQLops params -----
> >
> > modparam("sqlops","sqlcon","ca=>mysql://kamailio:kamailiorw@localhost
> /kamailio")
> >
> >
> > ####### Routing Logic ########
> >
> >
> >
> >
> >
> > # Main SIP request routing logic
> >
> > # - processing of any incoming SIP request starts with this route
> >
> > # - note: this is the same as route { ... }
> >
> > request_route {
> >
> >
> >
> > # per request initial checks
> >
> > route(REQINIT);
> >
> >
> >
> > # NAT detection
> >
> > route(NATDETECT);
> >
> >
> >
> > # handle requests within SIP dialogs
> >
> > route(WITHINDLG);
> >
> >
> >
> > ### only initial requests (no To tag)
> >
> >
> >
> > # CANCEL processing
> >
> > if (is_method("CANCEL"))
> >
> > {
> >
> > if (t_check_trans())
> >
> > t_relay();
> >
> > exit;
> >
> > }
> >
> >
> >
> > t_check_trans();
> >
> >
> >
> > # authentication
> >
> > route(AUTH);
> >
> >
> >
> > # record routing for dialog forming requests (in case they are routed)
> >
> > # - remove preloaded route headers
> >
> > remove_hf("Route");
> >
> > if (is_method("INVITE|SUBSCRIBE"))
> >
> > record_route();
> >
> >
> >
> > # account only INVITEs
> >
> > if (is_method("INVITE"))
> >
> > {
> >
> > setflag(FLT_ACC); # do accounting
> >
> > }
> >
> >
> >
> > # dispatch requests to foreign domains
> >
> > route(SIPOUT);
> >
> >
> >
> > ### requests for my local domains
> >
> >
> >
> > # handle presence related requests
> >
> > route(PRESENCE);
> >
> >
> >
> > # handle registrations
> >
> > route(REGISTRAR);
> >
> >
> >
> > if ($rU==$null)
> >
> > {
> >
> > # request with no Username in RURI
> >
> > sl_send_reply("484","Address Incomplete");
> >
> > exit;
> >
> > }
> >
> >
> >
> > # dispatch destinations to PSTN
> >
> > route(PSTN);
> >
> >
> >
> > # user location service
> >
> > route(LOCATION);
> >
> >
> >
> > route(RELAY);
> >
> > }
> >
> >
> >
> >
> >
> > route[RELAY] {
> >
> >
> >
> > # enable additional event routes for forwarded requests
> >
> > # - serial forking, RTP relaying handling, a.s.o.
> >
> > if (is_method("INVITE|SUBSCRIBE")) {
> >
> > t_on_branch("MANAGE_BRANCH");
> >
> > t_on_reply("MANAGE_REPLY");
> >
> > }
> >
> > if (is_method("INVITE")) {
> >
> > t_on_failure("MANAGE_FAILURE");
> >
> > }
> >
> >
> >
> > if (!t_relay()) {
> >
> > sl_reply_error();
> >
> > }
> >
> > exit;
> >
> > }
> >
> >
> >
> > # Per SIP request initial checks
> >
> > route[REQINIT] {
> >
> > #!ifdef WITH_ANTIFLOOD
> >
> > # flood dection from same IP and traffic ban for a while
> >
> > # be sure you exclude checking trusted peers, such as pstn gateways
> >
> > # - local host excluded (e.g., loop to self)
> >
> > if(src_ip!=myself)
> >
> > {
> >
> > if($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"))
> >
> > {
> >
> > xlog("Malformed SIP message from $si:$sp\n");
> >
> > exit;
> >
> > }
> >
> > }
> >
> >
> >
> > # Handle requests within SIP dialogs
> >
> > route[WITHINDLG] {
> >
> > if (has_totag()) {
> >
> > # sequential request withing a dialog should
> >
> > # take the path determined by record-routing
> >
> > if (loose_route()) {
> >
> > if (is_method("BYE")) {
> >
> > setflag(FLT_ACC); # do accounting ...
> >
> > setflag(FLT_ACCFAILED); # ... even if the transaction fails
> >
> > }
> >
> > if ( is_method("ACK") ) {
> >
> > # 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() ) {
> >
> > # no loose-route, but stateful ACK;
> >
> > # must be an ACK after a 487
> >
> > # or e.g. 404 from upstream server
> >
> > t_relay();
> >
> > exit;
> >
> > } else {
> >
> > # ACK without matching transaction ... ignore and discard
> >
> > exit;
> >
> > }
> >
> > }
> >
> > sl_send_reply("404","Not here");
> >
> > }
> >
> > exit;
> >
> > }
> >
> > }
> >
> >
> >
> > # Handle SIP registrations
> >
> > route[REGISTRAR] {
> >
> > 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();
> >
> >
> > if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB))){
> >
> > return;
> >
> > }
> >
> >
> > route(NATMANAGE);
> >
> >
> > #!ifdef WITH_ASTERISK
> >
> > route(REGFWD);
> >
> > #!endif
> >
> >
> >
> > exit;
> >
> > }
> >
> > }
> >
> >
> >
> > # USER location service
> >
> > route[LOCATION] {
> >
> >
> >
> > #!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
> >
> >
> >
> > #!ifdef WITH_ASTERISK
> >
> > 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;
> >
> > }
> >
> > #!endif
> >
> >
> >
> > $avp(oexten) = $rU;
> >
> > if (!lookup("location")) {
> >
> > $var(rc) = $rc;
> >
> > route(TOVOICEMAIL);
> >
> > t_newtran();
> >
> > switch ($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] {
> >
> > 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_AUTH
> >
> >
> >
> > #!ifdef WITH_ASTERISK
> >
> > # do not auth traffic from Asterisk - trusted!
> >
> > if(route(FROMASTERISK))
> >
> > return;
> >
> > #!endif
> >
> >
> >
> > #!ifdef WITH_IPAUTH
> >
> > if((!is_method("REGISTER")) && allow_source_address())
> >
> > {
> >
> > # source IP allowed
> >
> > return;
> >
> > }
> >
> > #!endif
> >
> >
> >
> > if (is_method("REGISTER") || from_uri==myself)
> >
> > {
> >
> > # authenticate requests
> >
> > #!ifdef WITH_ASTERISK
> >
> > if (!auth_check("$fd", "cc_sip_buddies", "1")) {
> >
> > #!else
> >
> > if (!auth_check("$fd", "subscriber", "1")) {
> >
> > #!endif
> >
> > auth_challenge("$fd", "0");
> >
> > exit;
> >
> > }
> >
> > # user authenticated - remove auth header
> >
> > if(!is_method("REGISTER|PUBLISH"))
> >
> > consume_credentials();
> >
> > }
> >
> > # if caller is not local subscriber, then check if it calls
> >
> > # a local destination, otherwise deny, not an open relay here
> >
> > if (from_uri!=myself && uri!=myself)
> >
> > {
> >
> > sl_send_reply("403","Not relaying");
> >
> > exit;
> >
> > }
> >
> >
> >
> > #!endif
> >
> > return;
> >
> > }
> >
> >
> >
> > # Caller NAT detection route
> >
> > route[NATDETECT] {
> >
> > #!ifdef WITH_NAT
> >
> > force_rport();
> >
> > if (nat_uac_test("19")) {
> >
> > if (is_method("REGISTER")) {
> >
> > fix_nated_register();
> >
> > } else {
> >
> > fix_nated_contact();
> >
> > }
> >
> > setflag(FLT_NATS);
> >
> > }
> >
> > #!endif
> >
> > return;
> >
> > }
> >
> >
> >
> > # RTPProxy control
> >
> > route[NATMANAGE] {
> >
> > if (is_method("INVITE")){
> >
> > sql_query("ca", "select destination from dispatcher where
> > destination like '%$dd%'","ra");
> >
> > if($dbr(ra=>rows)>0){
> >
> > $avp(duip)=$(du{s.select,-2,:});
> >
> > if (is_ip_rfc1918("$avp(duip)")) {
> >
> > xlog("L_INFO", "Call is going to private
> > IPv4 Media Server Engage RTPProxy Now\n");
> >
> > #rtpproxy_manage("crwie","192.168.1.40");
> >
> > rtpproxy_manage("rwie");
> >
> > }
> >
> >
> > }
> >
> > else if(ds_is_from_list()){
> >
> > if (is_ip_rfc1918("$si")) {
> >
> > xlog("L_INFO", " Call is coming from a
> > private IPv4 Media Server Engage RTPProxy Now\n");
> >
> > #rtpproxy_manage("crwei","192.168.1.80");
> >
> > rtpproxy_manage("rwei");
> >
> >
> > }
> >
> > }else if(!ds_is_from_list()){
> >
> >
> > rtpproxy_manage("rwie");
> >
> >
> > }
> >
> > }
> >
> >
> >
> > }
> >
> >
> >
> > # Routing to foreign domains
> >
> > route[SIPOUT] {
> >
> > if (!uri==myself)
> >
> > {
> >
> > append_hf("P-hint: outbound\r\n");
> >
> > route(RELAY);
> >
> > }
> >
> > }
> >
> >
> >
> > # PSTN GW routing
> >
> > route[PSTN] {
> >
> > #!ifdef WITH_PSTN
> >
> > # check if PSTN GW IP is defined
> >
> > if (strempty($sel(cfg_get.pstn.gw_ip))) {
> >
> > xlog("SCRIPT: PSTN rotuing enabled but pstn.gw_ip not defined\n");
> >
> > return;
> >
> > }
> >
> >
> >
> > # route to PSTN dialed numbers starting with '+' or '00'
> >
> > # (international format)
> >
> > # - update the condition to match your dialing rules for PSTN routing
> >
> > if(!($rU=~"^(\+|00)[1-9][0-9]{3,20}$"))
> >
> > return;
> >
> >
> >
> > # only local users allowed to call
> >
> > if(from_uri!=myself) {
> >
> > sl_send_reply("403", "Not Allowed");
> >
> > exit;
> >
> > }
> >
> >
> >
> > $ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip);
> >
> >
> >
> > route(RELAY);
> >
> > exit;
> >
> > #!endif
> >
> >
> >
> > return;
> >
> > }
> >
> >
> >
> > # XMLRPC routing
> >
> > #!ifdef WITH_XMLRPC
> >
> > route[XMLRPC] {
> >
> > # allow XMLRPC from localhost
> >
> > if ((method=="POST" || method=="GET")
> >
> > && (src_ip==127.0.0.1)) {
> >
> > # close connection only for xmlrpclib user agents (there is a bug in
> >
> > # xmlrpclib: it waits for EOF before interpreting the response).
> >
> > if ($hdr(User-Agent) =~ "xmlrpclib")
> >
> > set_reply_close();
> >
> > set_reply_no_connect();
> >
> > dispatch_rpc();
> >
> > exit;
> >
> > }
> >
> > send_reply("403", "Forbidden");
> >
> > exit;
> >
> > }
> >
> > #!endif
> >
> >
> >
> > # route to voicemail server
> >
> > route[TOVOICEMAIL] {
> >
> > #!ifdef WITH_VOICEMAIL
> >
> > if(!is_method("INVITE"))
> >
> > return;
> >
> >
> >
> > # check if VoiceMail server IP is defined
> >
> > if (strempty($sel(cfg_get.voicemail.srv_ip))) {
> >
> > xlog("SCRIPT: VoiceMail rotuing enabled but IP not defined\n");
> >
> > return;
> >
> > }
> >
> > if($avp(oexten)==$null)
> >
> > return;
> >
> >
> >
> > $ru = "sip:" + $avp(oexten) + "@" + $sel(cfg_get.voicemail.srv_ip)
> >
> > + ":" + $sel(cfg_get.voicemail.srv_port);
> >
> > route(RELAY);
> >
> > exit;
> >
> > #!endif
> >
> >
> >
> > return;
> >
> > }
> >
> >
> >
> > # manage outgoing branches
> >
> > branch_route[MANAGE_BRANCH] {
> >
> > xdbg("new branch [$T_branch_idx] to $ru\n");
> >
> > route(NATMANAGE);
> >
> > }
> >
> >
> >
> > # manage incoming replies
> >
> > onreply_route[MANAGE_REPLY] {
> >
> > xdbg("incoming reply\n");
> >
> > if(status=~"[12][0-9][0-9]")
> >
> > route(NATMANAGE);
> >
> > }
> >
> >
> >
> > # manage failure routing cases
> >
> > failure_route[MANAGE_FAILURE] {
> >
> > route(NATMANAGE);
> >
> >
> >
> > if (t_is_canceled()) {
> >
> > exit;
> >
> > }
> >
> >
> >
> > #!ifdef WITH_BLOCK3XX
> >
> > # block call redirect based on 3xx replies.
> >
> > if (t_check_status("3[0-9][0-9]")) {
> >
> > t_reply("404","Not found");
> >
> > exit;
> >
> > }
> >
> > #!endif
> >
> >
> >
> > #!ifdef WITH_VOICEMAIL
> >
> > # serial forking
> >
> > # - route to voicemail on busy or no answer (timeout)
> >
> > if (t_check_status("486|408")) {
> >
> > route(TOVOICEMAIL);
> >
> > exit;
> >
> > }
> >
> > #!endif
> >
> > }
> >
> >
> >
> > #!ifdef WITH_ASTERISK
> >
> > # Test if coming from Asterisk
> >
> > route[FROMASTERISK] {
> >
> > if(ds_is_from_list()){
> >
> > rtpproxy_manage("cawie");
> >
> > xlog("L_INFO","[$fU@$si:$sp]{$rm} Call from Media-Server Cluster\n");
> >
> > return 1;
> >
> > }
> >
> > return -1;
> >
> > }
> >
> >
> >
> > # Send to Asterisk
> >
> > route[TOASTERISK] {
> >
> > ds_mark_dst("IP");
> >
> > if(!ds_select_dst("1", "9")) {
> >
> > sl_send_reply("500", "Service Unavailable");
> >
> > xlog("L_INFO","[$fU@$si:$sp]{$rm} No destinations
> available
> > for $rd \n");
> >
> > exit;
> >
> > }
> >
> >
> > xlog("L_INFO","[$fU@$si:$sp]{$rm} From Outside World to
> Asterisk Box
> > $du\n");
> >
> > rtpproxy_manage("cawei");
> >
> >
> > route(RELAY);
> >
> > exit;
> >
> > }
> >
> >
> >
> > # Forward REGISTER to Asterisk
> >
> > route[REGFWD] {
> >
> > if(!is_method("REGISTER"))
> >
> > {
> >
> > return;
> >
> > }
> >
> > $var(rip) = $sel(cfg_get.asterisk.bindip);
> >
> > $uac_req(method)="REGISTER";
> >
> > $uac_req(ruri)="sip:" + $var(rip) + ":" +
> $sel(cfg_get.asterisk.bindport);
> >
> > $uac_req(furi)="sip:" + $au + "@" + $var(rip);
> >
> > $uac_req(turi)="sip:" + $au + "@" + $var(rip);
> >
> > $uac_req(hdrs)="Contact: <sip:" + $au + "@"
> >
> > + $sel(cfg_get.kamailio.bindip)
> >
> > + ":" + $sel(cfg_get.kamailio.bindport) + ">\r\n";
> >
> > if($sel(contact.expires) != $null)
> >
> > $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $sel(contact.expires) +
> > "\r\n";
> >
> > else
> >
> > $uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n";
> >
> > uac_req_send();
> >
> > }
> >
> > #!endif
> >
> >
> > _______________________________________________
> > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> > sr-users at lists.sip-router.org
> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
> >
>
>
>
> --
> Carsten Bock
> CEO (Geschäftsführer)
>
> ng-voice GmbH
> Schomburgstr. 80
> D-22767 Hamburg / Germany
>
> http://www.ng-voice.com
> mailto:carsten at ng-voice.com
>
> Office +49 40 34927219
> Fax +49 40 34927220
>
> Sitz der Gesellschaft: Hamburg
> Registergericht: Amtsgericht Hamburg, HRB 120189
> Geschäftsführer: Carsten Bock
> Ust-ID: DE279344284
>
> Hier finden Sie unsere handelsrechtlichen Pflichtangaben:
> http://www.ng-voice.com/imprint/
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
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#!KAMAILIO
#!define WITH_MYSQL
#!define WITH_AUTH
#!define WITH_USRLOCDB
#!define WITH_ASTERISK
#!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 mysql:
# - define WITH_MYSQL
#
# *** 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 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 PSTN gateway routing execute:
# - define WITH_PSTN
# - set the value of pstn.gw_ip
# - check route[PSTN] for regexp routing condition
#
# *** To enable database aliases lookup execute:
# - enable mysql
# - define WITH_ALIASDB
#
# *** To enable speed dial lookup execute:
# - enable mysql
# - define WITH_SPEEDDIAL
#
# *** To enable multi-domain support execute:
# - enable mysql
# - define WITH_MULTIDOMAIN
#
# *** 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
#
# *** 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
####### 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.
#!define DBURL "mysql://kamailio:kamailiorw@localhost/kamailio"
#!ifdef WITH_ASTERISK
#!define DBASTURL "mysql://root:passw0rd@192.168.1.10/mya2billing"
#!endif
#!endif
#!ifdef WITH_MULTIDOMAIN
# - the value for 'use_domain' parameters
#!define MULTIDOMAIN 1
#!else
#!define MULTIDOMAIN 0
#!endif
# - 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
fork=yes
children=4
/* 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
/* add local domain aliases */
#alias="sip.mydomain.com"
/* uncomment and configure the following line if you want Kamailio to
bind on a specific interface/port/proto (default bind on all available) */
#listen=udp:10.0.0.10:5060
/* port to listen to
* - can be specified more than once if needed to listen on many ports */
port=5060
#!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
mhomed=1
####### 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
#
#!ifdef WITH_PSTN
# PSTN GW Routing
#
# - pstn.gw_ip: valid IP or hostname as string value, example:
# pstn.gw_ip = "10.0.0.101" desc "My PSTN GW Address"
#
# - by default is empty to avoid misrouting
pstn.gw_ip = "" desc "PSTN GW Address"
#!endif
#!ifdef WITH_VOICEMAIL
# VoiceMail Routing on offline, busy or no answer
#
# - by default Voicemail server IP is empty to avoid misrouting
voicemail.srv_ip = "" desc "VoiceMail IP Address"
voicemail.srv_port = "5060" desc "VoiceMail Port"
#!endif
#!ifdef WITH_ASTERISK
asterisk.bindip = "192.168.1.10" desc "Asterisk IP Address"
asterisk.bindport = "5060" desc "Asterisk Port"
kamailio.bindip = "192.168.1.40" desc "Kamailio IP Address"
kamailio.bindport = "5060" desc "Kamailio Port"
#!endif
####### 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/"
#!endif
#!ifdef WITH_MYSQL
loadmodule "db_mysql.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"
loadmodule "dispatcher.so"
loadmodule "ipops.so"
loadmodule "sqlops.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_MULTIDOMAIN
loadmodule "domain.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
#!ifdef WITH_ASTERISK
loadmodule "uac.so"
#!endif
# ----------------- setting module-specific parameters ---------------
# ----- 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)
# ----- 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)
#!ifdef WITH_ASTERISK
modparam("rr", "append_fromtag", 1)
#!else
modparam("rr", "append_fromtag", 0)
#!endif
# ----- 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", "")
#!ifdef WITH_ASTERISK
modparam("auth_db", "user_column", "username")
modparam("auth_db", "password_column", "secret")
modparam("auth_db", "db_url", DBASTURL)
modparam("auth_db", "version_table", 0)
#!else
modparam("auth_db", "db_url", DBURL)
modparam("auth_db", "password_column", "password")
modparam("auth_db", "use_domain", MULTIDOMAIN)
#!endif
# ----- 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
# ----- domain params -----
#!ifdef WITH_MULTIDOMAIN
modparam("domain", "db_url", DBURL)
# register callback to match myself condition with domains list
modparam("domain", "register_myself", 1)
#!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)
modparam("nathelper", "sipping_from", "sip:pinger at kamailio.org")
# 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
# ------- Load-balancer params ------
modparam("dispatcher", "db_url","mysql://kamailio:kamailiorw@localhost/kamailio")
modparam("dispatcher", "table_name", "dispatcher")
modparam("dispatcher", "setid_col", "setid")
modparam("dispatcher", "destination_col", "destination")
modparam("dispatcher", "flags_col", "flags")
modparam("dispatcher", "priority_col", "priority")
modparam("dispatcher", "force_dst", 1)
modparam("dispatcher", "flags", 2)
modparam("dispatcher", "dst_avp", "$avp(i:271)")
modparam("dispatcher", "grp_avp", "$avp(i:272)")
modparam("dispatcher", "cnt_avp", "$avp(i:273)")
modparam("dispatcher", "ds_ping_from", "sip:Kamailio-Proxy at 192.168.1.40")
modparam("dispatcher", "ds_ping_interval",15)
modparam("dispatcher", "ds_probing_threshhold", 3)
modparam("dispatcher", "ds_ping_method", "OPTIONS")
modparam("dispatcher", "ds_probing_mode", 1)
modparam("dispatcher", "ds_ping_reply_codes", "class=2;code=403;code=404;code=484;class=3")
# ----- SQLops params -----
modparam("sqlops","sqlcon","ca=>mysql://kamailio:kamailiorw@localhost/kamailio")
####### Routing Logic ########
# Main SIP request routing logic
# - processing of any incoming SIP request starts with this route
# - note: this is the same as route { ... }
request_route {
# per request initial checks
route(REQINIT);
# NAT detection
route(NATDETECT);
# handle requests within SIP dialogs
route(WITHINDLG);
### only initial requests (no To tag)
# CANCEL processing
if (is_method("CANCEL"))
{
if (t_check_trans())
t_relay();
exit;
}
t_check_trans();
# authentication
route(AUTH);
# record routing for dialog forming requests (in case they are routed)
# - remove preloaded route headers
remove_hf("Route");
if (is_method("INVITE|SUBSCRIBE"))
record_route();
# account only INVITEs
if (is_method("INVITE"))
{
setflag(FLT_ACC); # do accounting
}
# dispatch requests to foreign domains
route(SIPOUT);
### requests for my local domains
# handle presence related requests
route(PRESENCE);
# handle registrations
route(REGISTRAR);
if ($rU==$null)
{
# request with no Username in RURI
sl_send_reply("484","Address Incomplete");
exit;
}
# dispatch destinations to PSTN
route(PSTN);
# user location service
route(LOCATION);
route(RELAY);
}
route[RELAY] {
# enable additional event routes for forwarded requests
# - serial forking, RTP relaying handling, a.s.o.
if (is_method("INVITE|SUBSCRIBE")) {
t_on_branch("MANAGE_BRANCH");
t_on_reply("MANAGE_REPLY");
}
if (is_method("INVITE")) {
t_on_failure("MANAGE_FAILURE");
}
if (!t_relay()) {
sl_reply_error();
}
exit;
}
# Per SIP request initial checks
route[REQINIT] {
#!ifdef WITH_ANTIFLOOD
# flood dection from same IP and traffic ban for a while
# be sure you exclude checking trusted peers, such as pstn gateways
# - local host excluded (e.g., loop to self)
if(src_ip!=myself)
{
if($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"))
{
xlog("Malformed SIP message from $si:$sp\n");
exit;
}
}
# Handle requests within SIP dialogs
route[WITHINDLG] {
if (has_totag()) {
# sequential request withing a dialog should
# take the path determined by record-routing
if (loose_route()) {
if (is_method("BYE")) {
setflag(FLT_ACC); # do accounting ...
setflag(FLT_ACCFAILED); # ... even if the transaction fails
}
if ( is_method("ACK") ) {
# 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() ) {
# no loose-route, but stateful ACK;
# must be an ACK after a 487
# or e.g. 404 from upstream server
t_relay();
exit;
} else {
# ACK without matching transaction ... ignore and discard
exit;
}
}
sl_send_reply("404","Not here");
}
exit;
}
}
# Handle SIP registrations
route[REGISTRAR] {
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();
if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB))){
return;
}
route(NATMANAGE);
#!ifdef WITH_ASTERISK
route(REGFWD);
#!endif
exit;
}
}
# USER location service
route[LOCATION] {
#!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
#!ifdef WITH_ASTERISK
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;
}
#!endif
$avp(oexten) = $rU;
if (!lookup("location")) {
$var(rc) = $rc;
route(TOVOICEMAIL);
t_newtran();
switch ($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] {
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_AUTH
#!ifdef WITH_ASTERISK
# do not auth traffic from Asterisk - trusted!
if(route(FROMASTERISK))
return;
#!endif
#!ifdef WITH_IPAUTH
if((!is_method("REGISTER")) && allow_source_address())
{
# source IP allowed
return;
}
#!endif
if (is_method("REGISTER") || from_uri==myself)
{
# authenticate requests
#!ifdef WITH_ASTERISK
if (!auth_check("$fd", "cc_sip_buddies", "1")) {
#!else
if (!auth_check("$fd", "subscriber", "1")) {
#!endif
auth_challenge("$fd", "0");
exit;
}
# user authenticated - remove auth header
if(!is_method("REGISTER|PUBLISH"))
consume_credentials();
}
# if caller is not local subscriber, then check if it calls
# a local destination, otherwise deny, not an open relay here
if (from_uri!=myself && uri!=myself)
{
sl_send_reply("403","Not relaying");
exit;
}
#!endif
return;
}
# Caller NAT detection route
route[NATDETECT] {
#!ifdef WITH_NAT
force_rport();
if (nat_uac_test("19")) {
if (is_method("REGISTER")) {
fix_nated_register();
} else {
fix_nated_contact();
}
setflag(FLT_NATS);
}
#!endif
return;
}
# RTPProxy control
route[NATMANAGE] {
if (is_method("INVITE")){
sql_query("ca", "select destination from dispatcher where destination like '%$dd%'","ra");
if($dbr(ra=>rows)>0){
$avp(duip)=$(du{s.select,-2,:});
if (is_ip_rfc1918("$avp(duip)")) {
xlog("L_INFO", "Call is going to private IPv4 Media Server Engage RTPProxy Now\n");
#rtpproxy_manage("crwie","192.168.1.40");
rtpproxy_manage("rwie");
}
}
else if(ds_is_from_list()){
if (is_ip_rfc1918("$si")) {
xlog("L_INFO", " Call is coming from a private IPv4 Media Server Engage RTPProxy Now\n");
#rtpproxy_manage("crwei","192.168.1.80");
rtpproxy_manage("rwei");
}
}else if(!ds_is_from_list()){
rtpproxy_manage("rwie");
}
}
}
# Routing to foreign domains
route[SIPOUT] {
if (!uri==myself)
{
append_hf("P-hint: outbound\r\n");
route(RELAY);
}
}
# PSTN GW routing
route[PSTN] {
#!ifdef WITH_PSTN
# check if PSTN GW IP is defined
if (strempty($sel(cfg_get.pstn.gw_ip))) {
xlog("SCRIPT: PSTN rotuing enabled but pstn.gw_ip not defined\n");
return;
}
# route to PSTN dialed numbers starting with '+' or '00'
# (international format)
# - update the condition to match your dialing rules for PSTN routing
if(!($rU=~"^(\+|00)[1-9][0-9]{3,20}$"))
return;
# only local users allowed to call
if(from_uri!=myself) {
sl_send_reply("403", "Not Allowed");
exit;
}
$ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip);
route(RELAY);
exit;
#!endif
return;
}
# XMLRPC routing
#!ifdef WITH_XMLRPC
route[XMLRPC] {
# allow XMLRPC from localhost
if ((method=="POST" || method=="GET")
&& (src_ip==127.0.0.1)) {
# close connection only for xmlrpclib user agents (there is a bug in
# xmlrpclib: it waits for EOF before interpreting the response).
if ($hdr(User-Agent) =~ "xmlrpclib")
set_reply_close();
set_reply_no_connect();
dispatch_rpc();
exit;
}
send_reply("403", "Forbidden");
exit;
}
#!endif
# route to voicemail server
route[TOVOICEMAIL] {
#!ifdef WITH_VOICEMAIL
if(!is_method("INVITE"))
return;
# check if VoiceMail server IP is defined
if (strempty($sel(cfg_get.voicemail.srv_ip))) {
xlog("SCRIPT: VoiceMail rotuing enabled but IP not defined\n");
return;
}
if($avp(oexten)==$null)
return;
$ru = "sip:" + $avp(oexten) + "@" + $sel(cfg_get.voicemail.srv_ip)
+ ":" + $sel(cfg_get.voicemail.srv_port);
route(RELAY);
exit;
#!endif
return;
}
# manage outgoing branches
branch_route[MANAGE_BRANCH] {
xdbg("new branch [$T_branch_idx] to $ru\n");
route(NATMANAGE);
}
# manage incoming replies
onreply_route[MANAGE_REPLY] {
xdbg("incoming reply\n");
if(status=~"[12][0-9][0-9]")
route(NATMANAGE);
}
# manage failure routing cases
failure_route[MANAGE_FAILURE] {
route(NATMANAGE);
if (t_is_canceled()) {
exit;
}
#!ifdef WITH_BLOCK3XX
# block call redirect based on 3xx replies.
if (t_check_status("3[0-9][0-9]")) {
t_reply("404","Not found");
exit;
}
#!endif
#!ifdef WITH_VOICEMAIL
# serial forking
# - route to voicemail on busy or no answer (timeout)
if (t_check_status("486|408")) {
route(TOVOICEMAIL);
exit;
}
#!endif
}
#!ifdef WITH_ASTERISK
# Test if coming from Asterisk
route[FROMASTERISK] {
if(ds_is_from_list()){
rtpproxy_manage("cawie");
xlog("L_INFO","[$fU@$si:$sp]{$rm} Call from Media-Server Cluster\n");
return 1;
}
return -1;
}
# Send to Asterisk
route[TOASTERISK] {
ds_mark_dst("IP");
if(!ds_select_dst("1", "9")) {
sl_send_reply("500", "Service Unavailable");
xlog("L_INFO","[$fU@$si:$sp]{$rm} No destinations available for $rd \n");
exit;
}
xlog("L_INFO","[$fU@$si:$sp]{$rm} From Outside World to Asterisk Box $du\n");
rtpproxy_manage("cawei");
route(RELAY);
exit;
}
# Forward REGISTER to Asterisk
route[REGFWD] {
if(!is_method("REGISTER"))
{
return;
}
$var(rip) = $sel(cfg_get.asterisk.bindip);
$uac_req(method)="REGISTER";
$uac_req(ruri)="sip:" + $var(rip) + ":" + $sel(cfg_get.asterisk.bindport);
$uac_req(furi)="sip:" + $au + "@" + $var(rip);
$uac_req(turi)="sip:" + $au + "@" + $var(rip);
$uac_req(hdrs)="Contact: <sip:" + $au + "@"
+ $sel(cfg_get.kamailio.bindip)
+ ":" + $sel(cfg_get.kamailio.bindport) + ">\r\n";
if($sel(contact.expires) != $null)
$uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $sel(contact.expires) + "\r\n";
else
$uac_req(hdrs)= $uac_req(hdrs) + "Expires: " + $hdr(Expires) + "\r\n";
uac_req_send();
}
#!endif
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