Hello Kamailio (OPENSER) Team,<div><br></div><div>We have successfully installed kamailio on debian flavor of LINUX as per your documentation states. After installation kamailio is running on the server and we are trying to register a SIP User Agent to kamailio SERVER. But when we try to register, the server is returning these set of messages to us.</div>
<div><br></div><div>1st Message : 401 Unauthorized</div><div>2nd Message : 200 OK</div><div>3rd Message : 401 Not Here<br><div><br clear="all">Looks like we are missing something in the configuration file for kamailio. Can you please guide us through the process so that we can get this working. I am attaching my kamailio.cfg file with the mail as well as the ethereal captured log file in format of .jpg file with the mail.</div>
<div><br></div><div>We also want kamailio to listen on multiple ports such as 5060 and 5062 and we have made according changes in the configuration file as well. Please have a look at those as well and tell us whether we are doing it right or not. Also if you feel that we need to do some additional changes in configuration file. Please suggest them.</div>
<div><br></div><div>PS: Attachments (EthCap.jpg and kamailio.cfg)</div><div><br></div><div>********************************************************************************************************************************************************************************************</div>
<div><div>#!KAMAILIO</div><div>################################</div><div>#Added By Saurabh#</div><div>#!define WITH_MYSQL</div><div>#!define WITH_AUTH</div><div>#!define WITH_USRLOCDB</div><div>################################</div>
<div>#</div><div># Kamailio (OpenSER) SIP Server v3.1 - default configuration script</div><div># - web: <a href="http://www.kamailio.org">http://www.kamailio.org</a></div><div># - git: <a href="http://sip-router.org">http://sip-router.org</a></div>
<div>#</div><div># Direct your questions about this file to: <<a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a>></div><div>#</div><div># Refer to the Core CookBook at <a href="http://www.kamailio.org/dokuwiki/doku.php">http://www.kamailio.org/dokuwiki/doku.php</a></div>
<div># for an explanation of possible statements, functions and parameters.</div><div>#</div><div># Several features can be enabled using '#!define WITH_FEATURE' directives:</div><div>#</div><div># *** To run in debug mode: </div>
<div># - define WITH_DEBUG</div><div>#</div><div># *** To enable mysql: </div><div># - define WITH_MYSQL</div><div>#</div><div># *** To enable authentication execute:</div><div># - enable mysql</div><div># - define WITH_AUTH</div>
<div># - add users using 'kamctl'</div><div>#</div><div># *** To enable IP authentication execute:</div><div># - enable mysql</div><div># - enable authentication</div><div># - define WITH_IPAUTH</div>
<div># - add IP addresses with group id '1' to 'address' table</div><div>#</div><div># *** To enable persistent user location execute:</div><div># - enable mysql</div><div># - define WITH_USRLOCDB</div>
<div>#</div><div># *** To enable presence server execute:</div><div># - enable mysql</div><div># - define WITH_PRESENCE</div><div>#</div><div># *** To enable nat traversal execute:</div><div># - define WITH_NAT</div>
<div># - install RTPProxy: <a href="http://www.rtpproxy.org">http://www.rtpproxy.org</a></div><div># - start RTPProxy:</div><div># rtpproxy -l _your_public_ip_ -s udp:localhost:7722</div><div>#</div><div># *** To enable PSTN gateway routing execute:</div>
<div># - define WITH_PSTN</div><div># - set the value of pstn.gw_ip</div><div># - check route[PSTN] for regexp routing condition</div><div>#</div><div># *** To enable database aliases lookup execute:</div><div>
# - enable mysql</div><div># - define WITH_ALIASDB</div><div>#</div><div># *** To enable multi-domain support execute:</div><div># - enable mysql</div><div># - define WITH_MULTIDOMAIN</div><div>#</div><div>
# *** To enable TLS support execute:</div><div># - adjust CFGDIR/tls.cfg as needed</div><div># - define WITH_TLS</div><div>#</div><div># *** To enable XMLRPC support execute:</div><div># - define WITH_XMLRPC</div>
<div># - adjust route[XMLRPC] for access policy</div><div>#</div><div># *** To enable anti-flood detection execute:</div><div># - adjust pike and htable=>ipban settings as needed (default is</div><div># block if more than 16 requests in 2 seconds and ban for 300 seconds)</div>
<div># - define WITH_ANTIFLOOD</div><div>#</div><div># *** To enhance accounting execute:</div><div># - enable mysql</div><div># - define WITH_ACCDB</div><div># - add following columns to database</div><div>
#!ifdef ACCDB_COMMENT</div><div> ALTER TABLE acc ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT '';</div><div> ALTER TABLE acc ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT '';</div><div> ALTER TABLE acc ADD COLUMN dst_ouser VARCHAR(64) NOT NULL DEFAULT '';</div>
<div> ALTER TABLE acc ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT '';</div><div> ALTER TABLE acc ADD COLUMN dst_domain VARCHAR(128) NOT NULL DEFAULT '';</div><div> ALTER TABLE missed_calls ADD COLUMN src_user VARCHAR(64) NOT NULL DEFAULT '';</div>
<div> ALTER TABLE missed_calls ADD COLUMN src_domain VARCHAR(128) NOT NULL DEFAULT '';</div><div> ALTER TABLE missed_calls ADD COLUMN dst_ouser VARCHAR(64) NOT NULL DEFAULT '';</div><div> ALTER TABLE missed_calls ADD COLUMN dst_user VARCHAR(64) NOT NULL DEFAULT '';</div>
<div> ALTER TABLE missed_calls ADD COLUMN dst_domain VARCHAR(128) NOT NULL DEFAULT '';</div><div>#!endif</div><div><br></div><div>####### Defined Values #########</div><div><br></div><div># *** Value defines - IDs used later in config</div>
<div>#!ifdef WITH_MYSQL</div><div># - database URL - used to connect to database server by modules such</div><div># as: auth_db, acc, usrloc, a.s.o.</div><div>#!define DBURL "mysql://openser:openserrw@localhost/openser"</div>
<div>#!endif</div><div>#!ifdef WITH_MULTIDOMAIN</div><div># - the value for 'use_domain' parameters</div><div>#!define MULTIDOMAIN 1</div><div>#!else</div><div>#!define MULTIDOMAIN 0</div><div>#!endif</div><div><br>
</div><div># - flags</div><div># FLT_ - per transaction (message) flags</div><div>#<span class="Apple-tab-span" style="white-space:pre"> </span>FLB_ - per branch flags</div><div>#!define FLT_ACC 1</div><div>#!define FLT_ACCMISSED 2</div>
<div>#!define FLT_ACCFAILED 3</div><div>#!define FLT_NATS 5</div><div><br></div><div>#!define FLB_NATB 6</div><div>#!define FLB_NATSIPPING 7</div><div><br></div><div>####### Global Parameters #########</div><div><br></div>
<div>#!ifdef WITH_DEBUG</div><div>debug=4</div><div>log_stderror=yes</div><div>#!else</div><div>debug=2</div><div>log_stderror=no</div><div>#!endif</div><div><br></div><div>memdbg=5</div><div>memlog=5</div><div><br></div>
<div>log_facility=LOG_LOCAL0</div><div><br></div><div>fork=yes</div><div>children=4</div><div><br></div><div>/* uncomment the next line to disable TCP (default on) */</div><div>#disable_tcp=yes</div><div><br></div><div>/* uncomment the next line to disable the auto discovery of local aliases</div>
<div> based on reverse DNS on IPs (default on) */</div><div>#auto_aliases=no</div><div><br></div><div>/* add local domain aliases */</div><div>#alias="<a href="http://sip.mydomain.com">sip.mydomain.com</a>"</div>
<div><br></div><div>/* uncomment and configure the following line if you want Kamailio to </div><div> bind on a specific interface/port/proto (default bind on all available) */</div><div>#listen=udp:<a href="http://10.0.0.10:5060">10.0.0.10:5060</a></div>
<div>listen=udp:XXX.XXX.XXX.XXX:5060 #XXX is ip address of server</div><div>listen=udp:XXX.XXX.XXX.XXX:5062 #XXX is ip address of server</div><div><br></div><div>/* port to listen to</div><div> * - can be specified more than once if needed to listen on many ports */</div>
<div>port=5060</div><div>port=5062</div><div>#!ifdef WITH_TLS</div><div>enable_tls=yes</div><div>#!endif</div><div><br></div><div>####### Custom Parameters #########</div><div><br></div><div># These parameters can be modified runtime via RPC interface</div>
<div># - see the documentation of 'cfg_rpc' module.</div><div>#</div><div># Format: <a href="http://group.id">group.id</a> = value 'desc' description</div><div># Access: $sel(<a href="http://cfg_get.group.id">cfg_get.group.id</a>) or @<a href="http://cfg_get.group.id">cfg_get.group.id</a></div>
<div>#</div><div><br></div><div>#!ifdef WITH_PSTN</div><div># PSTN GW Routing</div><div>#</div><div># - pstn.gw_ip: valid IP or hostname as string value, example:</div><div># pstn.gw_ip = "10.0.0.101" desc "My PSTN GW Address"</div>
<div>#</div><div># - by default is empty to avoid misrouting</div><div>pstn.gw_ip = "" desc "PSTN GW Address"</div><div>#!endif</div><div><br></div><div><br></div><div>####### Modules Section ########</div>
<div><br></div><div># set paths to location of modules</div><div>#!ifdef LOCAL_TEST_RUN</div><div>mpath="modules_k:modules"</div><div>#!else</div><div>mpath="/usr/local/lib/kamailio/modules_k/:/usr/local/lib/kamailio/modules/"</div>
<div>#!endif</div><div><br></div><div>#!ifdef WITH_MYSQL</div><div>loadmodule "db_mysql.so"</div><div>#!endif</div><div><br></div><div>loadmodule "mi_fifo.so"</div><div>loadmodule "kex.so"</div>
<div>loadmodule "tm.so"</div><div>loadmodule "tmx.so"</div><div>loadmodule "sl.so"</div><div>loadmodule "rr.so"</div><div>loadmodule "pv.so"</div><div>loadmodule "maxfwd.so"</div>
<div>loadmodule "usrloc.so"</div><div>loadmodule "registrar.so"</div><div>loadmodule "textops.so"</div><div>loadmodule "siputils.so"</div><div>loadmodule "xlog.so"</div><div>
loadmodule "sanity.so"</div><div>loadmodule "ctl.so"</div><div>loadmodule "mi_rpc.so"</div><div>loadmodule "acc.so"</div><div><br></div><div>#!ifdef WITH_AUTH</div><div>loadmodule "auth.so"</div>
<div>loadmodule "auth_db.so"</div><div>#!ifdef WITH_IPAUTH</div><div>loadmodule "permissions.so"</div><div>#!endif</div><div>#!endif</div><div><br></div><div>#!ifdef WITH_ALIASDB</div><div>loadmodule "alias_db.so"</div>
<div>#!endif</div><div><br></div><div>#!ifdef WITH_MULTIDOMAIN</div><div>loadmodule "domain.so"</div><div>#!endif</div><div><br></div><div>#!ifdef WITH_PRESENCE</div><div>loadmodule "presence.so"</div>
<div>loadmodule "presence_xml.so"</div><div>#!endif</div><div><br></div><div>#!ifdef WITH_NAT</div><div>loadmodule "nathelper.so"</div><div>loadmodule "rtpproxy.so"</div><div>#!endif</div><div>
<br></div><div>#!ifdef WITH_TLS</div><div>loadmodule "tls.so"</div><div>#!endif</div><div><br></div><div>#!ifdef WITH_ANTIFLOOD</div><div>loadmodule "htable.so"</div><div>loadmodule "pike.so"</div>
<div>#!endif</div><div><br></div><div>#!ifdef WITH_XMLRPC</div><div>loadmodule "xmlrpc.so"</div><div>#!endif</div><div><br></div><div># ----------------- setting module-specific parameters ---------------</div><div>
<br></div><div><br></div><div># ----- mi_fifo params -----</div><div>modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")</div><div><br></div><div><br></div><div># ----- tm params -----</div>
<div># auto-discard branches from previous serial forking leg</div><div>modparam("tm", "failure_reply_mode", 3)</div><div># default retransmission timeout: 30sec</div><div>modparam("tm", "fr_timer", 30000)</div>
<div># default invite retransmission timeout after 1xx: 120sec</div><div>modparam("tm", "fr_inv_timer", 120000)</div><div><br></div><div><br></div><div># ----- rr params -----</div><div># add value to ;lr param to cope with most of the UAs</div>
<div>modparam("rr", "enable_full_lr", 1)</div><div># do not append from tag to the RR (no need for this script)</div><div>modparam("rr", "append_fromtag", 0)</div><div><br></div><div>
<br></div><div># ----- registrar params -----</div><div>modparam("registrar", "method_filtering", 1)</div><div>/* uncomment the next line to disable parallel forking via location */</div><div># modparam("registrar", "append_branches", 0)</div>
<div>/* uncomment the next line not to allow more than 10 contacts per AOR */</div><div>#modparam("registrar", "max_contacts", 10)</div><div><br></div><div><br></div><div># ----- acc params -----</div>
<div>/* what special events should be accounted ? */</div><div>modparam("acc", "early_media", 0)</div><div>modparam("acc", "report_ack", 0)</div><div>modparam("acc", "report_cancels", 0)</div>
<div>/* by default ww do not adjust the direct of the sequential requests.</div><div> if you enable this parameter, be sure the enable "append_fromtag"</div><div> in "rr" module */</div><div>modparam("acc", "detect_direction", 0)</div>
<div>/* account triggers (flags) */</div><div>modparam("acc", "log_flag", FLT_ACC)</div><div>modparam("acc", "log_missed_flag", FLT_ACCMISSED)</div><div>modparam("acc", "log_extra", </div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>"src_user=$fU;src_domain=$fd;dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")</div><div>modparam("acc", "failed_transaction_flag", FLT_ACCFAILED)</div>
<div>/* enhanced DB accounting */</div><div>#!ifdef WITH_ACCDB</div><div>modparam("acc", "db_flag", FLT_ACC)</div><div>modparam("acc", "db_missed_flag", FLT_ACCMISSED)</div><div>modparam("acc", "db_url", DBURL)</div>
<div>modparam("acc", "db_extra",</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>"src_user=$fU;src_domain=$fd;dst_ouser=$tU;dst_user=$rU;dst_domain=$rd")</div><div>#!endif</div>
<div><br></div><div><br></div><div># ----- usrloc params -----</div><div>/* enable DB persistency for location entries */</div><div>#!ifdef WITH_USRLOCDB</div><div>modparam("usrloc", "db_url", DBURL)</div>
<div>modparam("usrloc", "db_mode", 2)</div><div>modparam("usrloc", "use_domain", MULTIDOMAIN)</div><div>#!endif</div><div><br></div><div><br></div><div># ----- auth_db params -----</div>
<div>#!ifdef WITH_AUTH</div><div>modparam("auth_db", "db_url", DBURL)</div><div>modparam("auth_db", "calculate_ha1", yes)</div><div>modparam("auth_db", "password_column", "password")</div>
<div>modparam("auth_db", "load_credentials", "")</div><div>modparam("auth_db", "use_domain", MULTIDOMAIN)</div><div><br></div><div># ----- permissions params -----</div><div>
#!ifdef WITH_IPAUTH</div><div>modparam("permissions", "db_url", DBURL)</div><div>modparam("permissions", "db_mode", 1)</div><div>#!endif</div><div><br></div><div>#!endif</div><div><br>
</div><div><br></div><div># ----- alias_db params -----</div><div>#!ifdef WITH_ALIASDB</div><div>modparam("alias_db", "db_url", DBURL)</div><div>modparam("alias_db", "use_domain", MULTIDOMAIN)</div>
<div>#!endif</div><div><br></div><div><br></div><div># ----- domain params -----</div><div>#!ifdef WITH_MULTIDOMAIN</div><div>modparam("domain", "db_url", DBURL)</div><div># use caching</div><div>modparam("domain", "db_mode", 1)</div>
<div># register callback to match myself condition with domains list</div><div>modparam("domain", "register_myself", 1)</div><div>#!endif</div><div><br></div><div><br></div><div>#!ifdef WITH_PRESENCE</div>
<div># ----- presence params -----</div><div>modparam("presence", "db_url", DBURL)</div><div><br></div><div># ----- presence_xml params -----</div><div>modparam("presence_xml", "db_url", DBURL)</div>
<div>modparam("presence_xml", "force_active", 1)</div><div>#!endif</div><div><br></div><div><br></div><div>#!ifdef WITH_NAT</div><div># ----- rtpproxy params -----</div><div>modparam("rtpproxy", "rtpproxy_sock", "udp:<a href="http://127.0.0.1:7722">127.0.0.1:7722</a>")</div>
<div><br></div><div># ----- nathelper params -----</div><div>modparam("nathelper", "natping_interval", 30)</div><div>modparam("nathelper", "ping_nated_only", 1)</div><div>modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)</div>
<div>modparam("nathelper", "sipping_from", "<a href="mailto:sip%3Apinger@kamailio.org">sip:pinger@kamailio.org</a>")</div><div><br></div><div># params needed for NAT traversal in other modules</div>
<div>modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")</div><div>modparam("usrloc", "nat_bflag", FLB_NATB)</div><div>#!endif</div><div><br></div><div><br></div>
<div>#!ifdef WITH_TLS</div><div># ----- tls params -----</div><div>modparam("tls", "config", "/usr/local/etc/kamailio/tls.cfg")</div><div>#!endif</div><div><br></div><div>#!ifdef WITH_ANTIFLOOD</div>
<div># ----- pike params -----</div><div>modparam("pike", "sampling_time_unit", 2)</div><div>modparam("pike", "reqs_density_per_unit", 16)</div><div>modparam("pike", "remove_latency", 4)</div>
<div><br></div><div># ----- htable params -----</div><div># ip ban htable with autoexpire after 5 minutes</div><div>modparam("htable", "htable", "ipban=>size=8;autoexpire=300;")</div><div>
#!endif</div><div><br></div><div>#!ifdef WITH_XMLRPC</div><div># ----- xmlrpc params -----</div><div>modparam("xmlrpc", "route", "XMLRPC");</div><div>modparam("xmlrpc", "url_match", "^/RPC")</div>
<div>#!endif</div><div><br></div><div>####### Routing Logic ########</div><div><br></div><div><br></div><div># Main SIP request routing logic</div><div># - processing of any incoming SIP request starts with this route</div>
<div>route {</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># per request initial checks</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(REQINIT);</div><div>
<br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># NAT detection</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(NAT);</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># handle requests within SIP dialogs</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>route(WITHINDLG);</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>### only initial requests (no To tag)</div><div><br>
</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># CANCEL processing</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("CANCEL"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (t_check_trans())</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>t_relay();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>t_check_trans();</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># authentication</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>route(AUTH);</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># record routing for dialog forming requests (in case they are routed)</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># - remove preloaded route headers</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>remove_hf("Route");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("INVITE|SUBSCRIBE"))</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>record_route();</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># account only INVITEs</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("INVITE"))</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>setflag(FLT_ACC); # do accounting</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># dispatch requests to foreign domains</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(SIPOUT);</div><div><br></div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>### requests for my local domains</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># handle presence related requests</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>route(PRESENCE);</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># handle registrations</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(REGISTRAR);</div>
<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if ($rU==$null)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># request with no Username in RURI</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("484","Address Incomplete");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># dispatch destinations to PSTN</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(PSTN);</div><div><br></div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span># user location service</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(LOCATION);</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(RELAY);</div>
<div>}</div><div><br></div><div><br></div><div>route[RELAY] {</div><div>#!ifdef WITH_NAT</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (check_route_param("nat=yes")) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>setbflag(FLB_NATB);</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (isflagset(FLT_NATS) || isbflagset(FLB_NATB)) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(RTPPROXY);</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>#!endif</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>/* example how to enable some additional event routes */</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("INVITE")) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>#t_on_branch("BRANCH_ONE");</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>t_on_reply("REPLY_ONE");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>t_on_failure("FAIL_ONE");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!t_relay()) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_reply_error();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div>}</div><div><br></div><div># Per SIP request initial checks</div><div>route[REQINIT] {</div><div>#!ifdef WITH_ANTIFLOOD</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># flood dection from same IP and traffic ban for a while</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># be sure you exclude checking trusted peers, such as pstn gateways</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># - local host excluded (e.g., loop to self)</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if(src_ip!=myself)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if($sht(ipban=>$si)!=$null)</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># ip is already blocked</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>xdbg("request from blocked IP - $rm from $fu (IP:$si:$sp)\n");</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!pike_check_req())</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>xlog("L_ALERT","ALERT: pike blocking $rm from $fu (IP:$si:$sp)\n");</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>$sht(ipban=>$si) = 1;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>#!endif</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!mf_process_maxfwd_header("10")) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("483","Too Many Hops");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if(!sanity_check("1511", "7"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>xlog("Malformed SIP message from $si:$sp\n");</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>}</div><div><br></div><div># Handle requests within SIP dialogs</div>
<div>route[WITHINDLG] {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (has_totag()) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># sequential request withing a dialog should</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># take the path determined by record-routing</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (loose_route()) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("BYE")) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>setflag(FLT_ACC); # do accounting ...</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>setflag(FLT_ACCFAILED); # ... even if the transaction fails</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(RELAY);</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>} else {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("SUBSCRIBE") && uri == myself) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># in-dialog subscribe requests</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>route(PRESENCE);</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if ( is_method("ACK") ) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if ( t_check_trans() ) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># no loose-route, but stateful ACK;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># must be an ACK after a 487</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># or e.g. 404 from upstream server</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>t_relay();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>} else {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># ACK without matching transaction ... ignore and discard</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("404","Not here");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>}</div><div><br></div><div># Handle SIP registrations</div><div>route[REGISTRAR] {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("REGISTER"))</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if(isflagset(FLT_NATS))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>setbflag(FLB_NATB);</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># uncomment next line to do SIP NAT pinging </div><div><span class="Apple-tab-span" style="white-space:pre"> </span>## setbflag(FLB_NATSIPPING);</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!save("location"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_reply_error();</div>
<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>}</div><div><br></div><div># USER location service</div>
<div>route[LOCATION] {</div><div><br></div><div>#!ifdef WITH_ALIASDB</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># search in DB-based aliases</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>alias_db_lookup("dbaliases");</div>
<div>#!endif</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!lookup("location")) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>switch ($rc) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>case -1:</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>case -3:</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>t_newtran();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>t_reply("404", "Not Found");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>case -2:</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("405", "Method Not Allowed");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># when routing via usrloc, log the missed calls also</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("INVITE"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>setflag(FLT_ACCMISSED);</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>}</div><div><br></div><div># Presence server route</div><div>route[PRESENCE] {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if(!is_method("PUBLISH|SUBSCRIBE"))</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div><div><br></div><div>#!ifdef WITH_PRESENCE</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!t_newtran())</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_reply_error();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>};</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if(is_method("PUBLISH"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>handle_publish();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>t_release();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>else</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if( is_method("SUBSCRIBE"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>handle_subscribe();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>t_release();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div>#!endif</div><div><span class="Apple-tab-span" style="white-space:pre"> </span></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># if presence enabled, this part will not be executed</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("PUBLISH") || $rU==$null)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("404", "Not here");</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div>
<div>}</div><div><br></div><div># Authentication route</div><div>route[AUTH] {</div><div>#!ifdef WITH_AUTH</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("REGISTER"))</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># authenticate the REGISTER requests (uncomment to enable auth)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!www_authorize("$td", "subscriber"))</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>www_challenge("$td", "0");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if ($au!=$tU)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("403","Forbidden auth ID");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>} else {</div><div><br></div><div>#!ifdef WITH_IPAUTH</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if(allow_source_address())</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># source IP allowed</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>#!endif</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># authenticate if from local subscriber</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>if (from_uri==myself)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!proxy_authorize("$fd", "subscriber")) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>proxy_challenge("$fd", "0");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("PUBLISH"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if ($au!=$tU) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("403","Forbidden auth ID");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>} else {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if ($au!=$fU) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("403","Forbidden auth ID");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>consume_credentials();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># caller authenticated</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>} else {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># caller is not local subscriber, then check if it calls</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># a local destination, otherwise deny, not an open relay here</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!uri==myself)</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("403","Not relaying");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div>#!endif</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div><div>}</div><div><br></div><div># Caller NAT detection route</div><div>route[NAT] {</div><div>#!ifdef WITH_NAT</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>force_rport();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (nat_uac_test("19")) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (method=="REGISTER") {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>fix_nated_register();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>} else {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>fix_nated_contact();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>setflag(FLT_NATS);</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>#!endif</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div>
<div>}</div><div><br></div><div># RTPProxy control</div><div>route[RTPPROXY] {</div><div>#!ifdef WITH_NAT</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("BYE")) {</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>unforce_rtp_proxy();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>} else if (is_method("INVITE")){</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>force_rtp_proxy();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!has_totag()) add_rr_param(";nat=yes");</div><div>#!endif</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>return;</div><div>}</div><div><br></div><div># Routing to foreign domains</div><div>route[SIPOUT] {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (!uri==myself)</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>append_hf("P-hint: outbound\r\n");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(RELAY);</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>}</div><div><br></div><div># PSTN GW routing</div><div>route[PSTN] {</div><div>#!ifdef WITH_PSTN</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># check if PSTN GW IP is defined</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if (strempty($sel(cfg_get.pstn.gw_ip))) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>xlog("SCRIPT: PSTN rotuing enabled but pstn.gw_ip not defined\n");</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># route to PSTN dialed numbers starting with '+' or '00'</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># (international format)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># - update the condition to match your dialing rules for PSTN routing</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if(!($rU=~"^(\+|00)[1-9][0-9]{3,20}$"))</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div><div><br></div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span># only local users allowed to call</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if(from_uri!=myself) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>sl_send_reply("403", "Not Allowed");</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>$ru = "sip:" + $rU + "@" + $sel(cfg_get.pstn.gw_ip);</div>
<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>route(RELAY);</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div>#!endif</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>return;</div>
<div>}</div><div><br></div><div># XMLRPC routing</div><div>#!ifdef WITH_XMLRPC</div><div>route[XMLRPC]</div><div>{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># allow XMLRPC from localhost</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if ((method=="POST" || method=="GET")</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>&& (src_ip==127.0.0.1)) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># close connection only for xmlrpclib user agents (there is a bug in</div><div><span class="Apple-tab-span" style="white-space:pre"> </span># xmlrpclib: it waits for EOF before interpreting the response).</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>if ($hdr(User-Agent) =~ "xmlrpclib")</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>set_reply_close();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>set_reply_no_connect();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>dispatch_rpc();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>send_reply("403", "Forbidden");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div><div>}</div><div>#!endif</div>
<div><br></div><div># Sample branch router</div><div>branch_route[BRANCH_ONE] {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>xdbg("new branch at $ru\n");</div><div>}</div><div><br></div>
<div># Sample onreply route</div><div>onreply_route[REPLY_ONE] {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>xdbg("incoming reply\n");</div><div>#!ifdef WITH_NAT</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if ((isflagset(FLT_NATS) || isbflagset(FLB_NATB))</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>&& status=~"(183)|(2[0-9][0-9])") {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>force_rtp_proxy();</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (isbflagset("6")) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>fix_nated_contact();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>#!endif</div><div>}</div><div><br></div><div># Sample failure route</div><div>failure_route[FAIL_ONE] {</div><div>#!ifdef WITH_NAT</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (is_method("INVITE")</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>&& (isbflagset(FLB_NATB) || isflagset(FLT_NATS))) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>unforce_rtp_proxy();</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div>#!endif</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>if (t_is_canceled()) {</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># uncomment the following lines if you want to block client </div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span># redirect based on 3xx replies.</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>##if (t_check_status("3[0-9][0-9]")) {</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>##t_reply("404","Not found");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>##<span class="Apple-tab-span" style="white-space:pre"> </span>exit;</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>##}</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span># uncomment the following lines if you want to redirect the failed </div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span># calls to a different new destination</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>##if (t_check_status("486|408")) {</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>##<span class="Apple-tab-span" style="white-space:pre"> </span>sethostport("<a href="http://192.168.2.100:5060">192.168.2.100:5060</a>");</div><div>
<span class="Apple-tab-span" style="white-space:pre"> </span>##<span class="Apple-tab-span" style="white-space:pre"> </span>append_branch();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>##<span class="Apple-tab-span" style="white-space:pre"> </span># do not set the missed call flag again</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>##<span class="Apple-tab-span" style="white-space:pre"> </span>t_relay();</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>##}</div><div>
}</div></div><div><br></div><div>********************************************************************************************************************************************************************************************</div>
<div><br>Thanks and Best Regards<br>Saurabh Srivastava
</div></div>