[SR-Users] BLFs are not working

Jerry Kendall Jerry.Kendall at BishopHosting.com
Thu Sep 30 17:56:58 CEST 2021


Does anyone have some idea of what to look at ?

Jerry


On 9/29/2021 1:46 AM, Jerry Kendall wrote:
>
> Forgot to add:
>
>
> debian 11
>
> Kamailio 5.4.4
>
> Phones ARE behind NAT
>
>
> Jerry
>
>
> On 2021-09-29 1:35 a.m., Jerry Kendall wrote:
>>
>>
>> Hi there...
>>
>>
>> Trying to get the BLFs working... Not much luck
>>
>>
>> Registration works and device to device calls work but the BLFs dont....
>>
>>
>> Does anyone have a basic config where the BLFs work and calls work that I can try?
>>
>>
>> If not, can someone point me in the right direction?
>>
>>
>>
>> I get LOTS of these types of NOTIFYs but never one with a body...
>>
>>
>>
>> NOTIFY sip:305 at 10..10.10.223:34571 SIP/2.0
>> Via: SIP/2.0/UDP a.b.c.d:port;branch=z9hG4bKeb43.45649b07000000000000000000000000.0
>> To: <sip:305 at domain.net>;tag=697604941
>> From: <sip:301 at domain.net>;tag=5e1ee053cf7168b9d3ee9c05740f837c-998270a1
>> CSeq: 2 NOTIFY
>> Call-ID: 1023132872-34571-5 at BA.CEG.HG.GC
>> Content-Length: 0
>> User-Agent: kamailio (5.4.4 (x86_64/linux))
>> Max-Forwards: 70
>> Event: dialog
>> Contact: <sip:a.b.c.d:port>
>> Subscription-State: terminated;reason=timeout
>>
>>
>>
>>
>> Below, this is my config taken from https://kb.asipto.com/kamailio:presence:k43-blf
>>
>> ============================
>>
>>
>> #!KAMAILIO
>>
>> #!define WITH_MYSQL
>> #!define WITH_AUTH
>> #!define WITH_NAT
>> #!define WITH_NATSIPPING
>> #!define WITH_USRLOCDB
>> #!define WITH_PRESENCE
>> #!define WITH_MULTIDOMAIN
>>
>> #
>> # Kamailio (OpenSER) SIP Server v4.3 - 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/wiki/
>> # 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
>> #     - option for NAT SIP OPTIONS keepalives: WITH_NATSIPPING
>> #
>> # *** 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
>>
>> ####### Include Local Config If Exists #########
>> import_file "kamailio-local.cfg"
>>
>> ####### 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.
>> #!ifndef DBURL
>> #!trydef DBURL "mysql://user:passwd@127.0.0.1/kamailio"
>> #!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 FLT_DLG 9
>> #!define FLT_DLGINFO 10
>>
>> #!define FLB_NATB 6
>> #!define FLB_NATSIPPING 7
>>
>> ####### Global Parameters #########
>>
>> ### LOG Levels: 3=DBG, 2=INFO, 1=NOTICE, 0=WARN, -1=ERR
>> #!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:a.b.c.d:port
>>
>> /* port to listen to
>>  * - can be specified more than once if needed to listen on many ports */
>> port=8081
>>
>> #!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
>> #
>>
>> #!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"
>> pstn.gw_port = "" desc "PSTN GW Port"
>> #!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
>>
>> ####### Modules Section ########
>>
>> /* set paths to location of modules */
>> # mpath="/usr/lib/x86_64-linux-gnu/kamailio/modules/"
>>
>> #!ifdef WITH_MYSQL
>> loadmodule "db_mysql.so"
>> #!endif
>>
>> loadmodule "jsonrpcs.so"
>> loadmodule "kex.so"
>> loadmodule "corex.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 "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_MULTIDOMAIN
>> loadmodule "domain.so"
>> #!endif
>>
>> #!ifdef WITH_PRESENCE
>> loadmodule "presence.so"
>> loadmodule "presence_xml.so"
>> loadmodule "presence_dialoginfo.so"
>> loadmodule "pua.so"
>> loadmodule "pua_dialoginfo.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
>>
>> loadmodule "dialog.so"
>>
>> # ----------------- setting module-specific parameters ---------------
>>
>>
>> # ----- 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 -----
>> # set next param to 1 to add value to ;lr param (helps with some UAs)
>> modparam("rr", "enable_full_lr", 0)
>> # do not append from tag to the RR (no need for this script)
>> modparam("rr", "append_fromtag", 0)
>>
>>
>> # ----- 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", "db_url", DBURL)
>> modparam("auth_db", "calculate_ha1", yes)
>> modparam("auth_db", "password_column", "password")
>> modparam("auth_db", "load_credentials", "")
>> modparam("auth_db", "use_domain", MULTIDOMAIN)
>>
>> # ----- 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
>>
>>
>> # ----- speeddial 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)
>> modparam("presence", "server_address", "sip:a.b.c.d:port" )
>> modparam("presence", "send_fast_notify", 0)
>> modparam("presence", "db_update_period", 20)
>> modparam("presence", "clean_period", 40)
>> modparam("presence", "subs_db_mode", 2)
>> modparam("presence", "fetch_rows", 1000)
>>
>> # ----- presence_xml params -----
>> modparam("presence_xml", "db_url", DBURL)
>> modparam("presence_xml", "force_active", 1)
>>
>> # ----- presence_dialoginfo params -----
>> modparam("presence_dialoginfo", "force_single_dialog", 0)
>>
>> # ----- pua params -----
>> modparam("pua", "db_url", DBURL)
>> modparam("pua", "db_mode", 2)
>> modparam("pua", "update_period", 60)
>> modparam("pua", "dlginfo_increase_version", 0)
>> modparam("pua", "reginfo_increase_version", 0)
>> modparam("pua", "check_remote_contact", 1)
>> modparam("pua", "fetch_rows", 1000)
>>
>> # ----- pua_dialoginfo params -----
>> modparam("pua_dialoginfo", "include_callid", 1)
>> modparam("pua_dialoginfo", "send_publish_flag", FLT_DLGINFO)
>> modparam("pua_dialoginfo", "caller_confirmed", 0)
>> modparam("pua_dialoginfo", "include_tags", 1)
>> modparam("pua_dialoginfo", "override_lifetime", 124)
>>
>> #!endif
>>
>> # ----- dialog params -----
>> modparam("dialog", "db_url", DBURL)
>> modparam("dialog", "enable_stats", 1)
>> modparam("dialog", "db_mode", 1)
>> modparam("dialog", "dlg_flag", FLT_DLG)
>>
>> #!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)
>> modparam("debugger", "log_level_name", "exec")
>> #!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 {
>>
>>         # per request initial checks
>>         route(REQINIT);
>>
>>         # NAT detection
>>         route(NATDETECT);
>>
>>         # CANCEL processing
>>         if (is_method("CANCEL")) {
>>                 if (t_check_trans()) {
>>                         route(RELAY);
>>                 }
>>                 exit;
>>         }
>>
>>         # handle requests within SIP dialogs
>>         route(WITHINDLG);
>>
>>         ### only initial requests (no To tag)
>>
>>         # handle retransmissions
>>         if(t_precheck_trans()) {
>>                 t_check_trans();
>>                 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);
>> }
>>
>> # Wrapper for relaying requests
>> route[RELAY] {
>>
>>         # enable additional event routes for forwarded requests
>>         # - serial forking, RTP relaying handling, a.s.o.
>>         if (is_method("INVITE|BYE|SUBSCRIBE|UPDATE")) {
>>                 if(!t_is_set("branch_route")) t_on_branch("MANAGE_BRANCH");
>>         }
>>         if (is_method("INVITE|SUBSCRIBE|UPDATE")) {
>>                 if(!t_is_set("onreply_route")) t_on_reply("MANAGE_REPLY");
>>         }
>>         if (is_method("INVITE")) {
>>                 if(!t_is_set("failure_route")) t_on_failure("MANAGE_FAILURE");
>>         }
>>
>>         if(is_method("INVITE|BYE|UPDATE|CANCEL|ACK")) {
>>                 setflag(FLT_DLGINFO);
>>                 dlg_manage();
>>         }
>>
>>         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;
>>                 }
>>         }
>>         if($ua =~ "friendly-scanner") {
>>                 sl_send_reply("200", "OK");
>>                 exit;
>>         }
>> #!endif
>>
>>         if (!mf_process_maxfwd_header("10")) {
>>                 sl_send_reply("483","Too Many Hops");
>>                 exit;
>>         }
>>
>>         if(is_method("OPTIONS") && uri==myself && $rU==$null) {
>>                 sl_send_reply("200","Keepalive");
>>                 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()) return;
>>
>>         # sequential request withing a dialog should
>>         # take the path determined by record-routing
>>         if (loose_route()) {
>>                 route(DLGURI);
>>                 if (is_method("BYE")) {
>>                         setflag(FLT_ACC); # do accounting ...
>>                         setflag(FLT_ACCFAILED); # ... even if the transaction fails
>>                 }
>>                 else if ( is_method("ACK") ) {
>>                         # ACK is forwarded statelessy
>>                         route(NATMANAGE);
>>                 }
>>                 else if ( is_method("NOTIFY") ) {
>>                         # Add Record-Route for in-dialog NOTIFY as per RFC 6665.
>>                         record_route();
>>                 }
>>                 route(RELAY);
>>                 exit;
>>         }
>>
>>         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
>>                         route(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")) return;
>>
>>         if(isflagset(FLT_NATS)) {
>>                 setbflag(FLB_NATB);
>> #!ifdef WITH_NATSIPPING
>>                 # do SIP NAT pinging
>>                 setbflag(FLB_NATSIPPING);
>> #!endif
>>         }
>>         if (!save("location"))
>>                 sl_reply_error();
>>         exit;
>> }
>>
>> # User location service
>> route[LOCATION] {
>>
>> #!ifdef WITH_SPEEDDIAL
>>         # 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
>>
>>         $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);
>>         }
>>
>>         route(RELAY);
>>         exit;
>> }
>>
>> # Presence server processing
>> route[PRESENCE] {
>>         if(!is_method("PUBLISH|SUBSCRIBE"))
>>                 return;
>>
>>         if(is_method("SUBSCRIBE") && $hdr(Event)=="message-summary") {
>>                 route(TOVOICEMAIL);
>>                 # returns here if no voicemail server is configured
>>                 sl_send_reply("404", "No voicemail service");
>>                 exit;
>>         }
>>
>> #!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;
>> }
>>
>> # IP authorization and user uthentication
>> route[AUTH] {
>> #!ifdef WITH_AUTH
>>
>> #!ifdef WITH_IPAUTH
>>         if((!is_method("REGISTER")) && allow_source_address()) {
>>                 # source IP allowed
>>                 return;
>>         }
>> #!endif
>>
>>         if (is_method("REGISTER") || from_uri==myself)
>>         {
>>                 # authenticate requests
>>                 if (!auth_check("$fd", "subscriber", "1")) {
>>                         auth_challenge("$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) {
>>                 sl_send_reply("403","Not relaying");
>>                 exit;
>>         }
>>
>> #!endif
>>         return;
>> }
>>
>> # Caller NAT detection
>> route[NATDETECT] {
>> #!ifdef WITH_NAT
>>         force_rport();
>>         if (nat_uac_test("19")) {
>>                 if (is_method("REGISTER")) {
>>                         fix_nated_register();
>>                 } else {
>>                         if(is_first_hop())
>>                                 set_contact_alias();
>>                 }
>>                 setflag(FLT_NATS);
>>         }
>> #!endif
>>         return;
>> }
>>
>> # RTPProxy control and singaling updates for NAT traversal
>> route[NATMANAGE] {
>> #!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;
>>
>>         rtpproxy_manage("co");
>>
>>         if (is_request()) {
>>                 if (!has_totag()) {
>>                         if(t_is_branch_route()) {
>>                                 add_rr_param(";nat=yes");
>>                         }
>>                 }
>>         }
>>         if (is_reply()) {
>>                 if(isbflagset(FLB_NATB)) {
>>                         if(is_first_hop())
>>                                 set_contact_alias();
>>                 }
>>         }
>> #!endif
>>         return;
>> }
>>
>> # URI update for dialog requests
>> route[DLGURI] {
>> #!ifdef WITH_NAT
>>         if(!isdsturiset()) {
>>                 handle_ruri_alias();
>>         }
>> #!endif
>>         return;
>> }
>>
>> # Routing to foreign domains
>> route[SIPOUT] {
>>         if (uri==myself) return;
>>
>>         append_hf("P-hint: outbound\r\n");
>>         route(RELAY);
>>         exit;
>> }
>>
>> # 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}$"))
>>                 return;
>>
>>         # only local users allowed to call
>>         if(from_uri!=myself) {
>>                 sl_send_reply("403", "Not Allowed");
>>                 exit;
>>         }
>>
>>         if (strempty($sel(cfg_get.pstn.gw_port))) {
>>                 $ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip);
>>         } else {
>>                 $ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip) + ":"
>>                                         + $sel(cfg_get.pstn.gw_port);
>>         }
>>
>>         route(RELAY);
>>         exit;
>> #!endif
>>
>>         return;
>> }
>>
>> # XMLRPC routing
>> #!ifdef WITH_XMLRPC
>> route[XMLRPC] {
>>         # allow XMLRPC from localhost
>>         if ((method=="POST" || method=="GET")
>>                         && (src_ip==127.0.0.1)) {
>>                 # close connection only for xmlrpclib user agents (there is a bug in
>>                 # xmlrpclib: it waits for EOF before interpreting the response).
>>                 if ($hdr(User-Agent) =~ "xmlrpclib")
>>                         set_reply_close();
>>                 set_reply_no_connect();
>>                 dispatch_rpc();
>>                 exit;
>>         }
>>         send_reply("403", "Forbidden");
>>         exit;
>> }
>> #!endif
>>
>> # Routing to voicemail server
>> route[TOVOICEMAIL] {
>> #!ifdef WITH_VOICEMAIL
>>         if(!is_method("INVITE|SUBSCRIBE"))
>>                 return;
>>
>>         # check if VoiceMail server IP is defined
>>         if (strempty($sel(cfg_get.voicemail.srv_ip))) {
>>                 xlog("SCRIPT: VoiceMail rotuing enabled but IP not defined\n");
>>                 return;
>>         }
>>         if(is_method("INVITE")) {
>>                 if($avp(oexten)==$null)
>>                         return;
>>                 $ru = "sip:" + $avp(oexten) + "@" + $sel(cfg_get.voicemail.srv_ip)
>>                                 + ":" + $sel(cfg_get.voicemail.srv_port);
>>         } else {
>>                 if($rU==$null)
>>                         return;
>>                 $ru = "sip:" + $rU + "@" + $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")) {
>>                 $du = $null;
>>                 route(TOVOICEMAIL);
>>                 exit;
>>         }
>> #!endif
>> }
>>
>> ======================
>>
>>
>> __________________________________________________________
>> Kamailio - Users Mailing List - Non Commercial Discussions
>>    *sr-users at lists.kamailio.org
>> Important: keep the mailing list in the recipients, do not reply only to the sender!
>> Edit mailing list options or unsubscribe:
>>    *https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
>    * sr-users at lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only to the sender!
> Edit mailing list options or unsubscribe:
>    * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users





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