# SIP trunk between many servers **URL:** \ **Category:** Asterisk Support\ **Created:** [November 10, 2022, 10:26am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671 "2022-11-10T10:26:40Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 10, 2022, 10:26am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/1 "2022-11-10T10:26:40Z")
I want to connect many servers with trunk, but there are many problems There tow servers configuration file: ## Server A(192.168.1.70) - pjsip.conf ```auto [transport-udp] type=transport protocol=udp bind=0.0.0.0 [TOB] type=endpoint context=sip_trunk disallow=all allow=ulaw allow=g722,ulaw outbound_auth=TOB aors=TOB [TOB] type=auth auth_type=userpass password=TOB username=TOB [TOB] type=aor contact=sip:192.168.1.83:5060 max_contacts=10 [TOB] type=registration outbound_auth=TOB expiration=300 retry_interval=60 fatal_retry_interval=30 forbidden_retry_interval=30 max_retries=10000 expiration=3600 line=yes endpoint=TOB auth_rejection_permanent=no server_uri=sip:192.168.1.83:5060 client_uri=sip:TOB@192.168.1.83:5060 [TOB] type=identify match=192.168.1.83:5060/24 endpoint=TOB [6010] type=endpoint context=sip_trunk disallow=all allow=ulaw auth=6010 aors=6010 [6010] type=auth auth_type=userpass password=123456 username=6010 [6010] type=aor max_contacts=10 [6011] type=endpoint context=sip_trunk allow=!all,all auth=6011 aors=6011 [6011] type=auth auth_type=userpass password=123456 username=6011 [6011] type=aor max_contacts=10 ``` - extensions.conf ```auto [sip_trunk] exten => _6XXX,1,Ringing() same => n,Dial(PJSIP/${EXTEN}@TOB) same => n,HangUp() ``` ## ServerB(192.168.1.83) - pjsip.conf ```auto [transport-udp] type=transport protocol=udp bind=0.0.0.0 [TOA] type=endpoint context=sip_trunk disallow=all allow=ulaw allow=g722,ulaw outbound_auth=TOA aors=TOA [TOA] type=auth auth_type=userpass password=TOA username=TOA [TOA] type=aor contact=sip:192.168.1.70:5060 max_contacts=10 [TOA] type=registration outbound_auth=TOA expiration=300 retry_interval=60 fatal_retry_interval=30 forbidden_retry_interval=30 max_retries=10000 expiration=3600 line=yes endpoint=TOA auth_rejection_permanent=no server_uri=sip:192.168.1.70:5060 client_uri=sip:TOA@192.168.1.70:5060 [TOA] type=identify match=192.168.1.70:5060/24 endpoint=TOA [6001] type=endpoint context=sip_trunk disallow=all allow=ulaw auth=6001 aors=6001 [6001] type=auth auth_type=userpass password=123456 username=6001 [6001] type=aor max_contacts=10 [6002] type=endpoint context=sip_trunk allow=!all,all auth=6002 aors=6002 [6002] type=auth auth_type=userpass password=123456 username=6002 [6002] type=aor max_contacts=10 ``` - extensions.conf ```auto [sip_trunk] exten => _6XXX,1,Ringing() same => n,Dial(PJSIP/${EXTEN}@TOA) same => n,HangUp() ``` Anyway thank you very much for your help !!! ---
**Author:** ![jcolp](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/jcolp/32/8848_2.png) [@jcolp](https://community.asterisk.org/u/jcolp)\ **Post date:** [November 10, 2022, 10:37am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/2 "2022-11-10T10:37:07Z")
And the problems… are? ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [November 10, 2022, 10:37am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/3 "2022-11-10T10:37:38Z")
Initial observations: There should be no type=registration section. You have outbound auth on both but no corresponding inbound auth, so there will never be an authorisation challenge and therefore the outbound auth is useless. You haven’t said what you expected to happen and what actually happened. For the latter, we would expect to see logs. Although becoming common popular terminology, server is neither valid SIP terminology, nor valid Linux terminology. The only thing it could really refer to is the physical hardware. Server has a different meaning in SIP and Asterisk is a daemon. ---
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 10, 2022, 10:54am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/4 "2022-11-10T10:54:07Z")
sorry i remember it ```auto res_pjsip_exten_state.c:429 new_subscribe: Endpoint '6001' state subscription failed: Extension '6010' does not exist in context 'sip_trunk' or has no associated hint -- Executing [6010@sip_trunk:1] Ringing("PJSIP/6001-00001261", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/6001-00001261", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001262 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001263", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001263", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001262 is ringing -- PJSIP/TOA-00001264 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001265", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001265", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001264 is ringing -- PJSIP/TOA-00001266 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001267", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001267", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001266 is ringing -- PJSIP/TOA-00001268 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001269", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001269", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001268 is ringing -- PJSIP/TOA-0000126a is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-0000126b", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-0000126b", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-0000126a is ringing -- PJSIP/TOA-0000126c is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-0000126d", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-0000126d", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-0000126c is ringing -- PJSIP/TOA-0000126e is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-0000126f", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-0000126f", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-0000126e is ringing -- PJSIP/TOA-00001270 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001271", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001271", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001270 is ringing -- PJSIP/TOA-00001272 is ringing ...... [Nov 10 18:19:12] ERROR[37462]: res_timing_timerfd.c:93 timerfd_timer_open: Failed to create timerfd timer: Too many open files [Nov 10 18:19:12] WARNING[37462]: alertpipe.c:48 ast_alertpipe_init: Failed to create alert pipe with eventfd(), falling back to pipe(): Too many open files [Nov 10 18:19:12] WARNING[37462]: alertpipe.c:57 ast_alertpipe_init: Failed to create alert pipe: Too many open files [Nov 10 18:19:12] ERROR[37462]: chan_pjsip.c:3071 chan_pjsip_incoming_request: TOA: Failed to allocate new PJSIP channel on incoming SIP INVITE == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001355", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001355' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001353", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001353' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001351", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001351' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-0000134f", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-0000134f' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-0000134d", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-0000134d' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-0000134b", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-0000134b' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001349", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001349' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001347", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001347' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001345", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001345' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001343", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001343' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001341", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001341' ...... [Nov 10 18:19:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:19:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:19:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:19:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:20:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:20:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:20:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:20:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:21:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:21:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:21:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:21:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:22:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:22:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:22:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:22:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:23:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:23:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:23:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:23:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:24:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:24:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:24:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:24:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:25:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:25:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:25:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:25:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:26:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:26:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:26:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:26:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:27:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) ``` the problem ---
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 10, 2022, 11:01am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/5 "2022-11-10T11:01:47Z")
I want to make a call between the two Servers,but can not and the problems ```auto es_pjsip_exten_state.c:429 new_subscribe: Endpoint '6001' state subscription failed: Extension '6010' does not exist in context 'sip_trunk' or has no associated hint -- Executing [6010@sip_trunk:1] Ringing("PJSIP/6001-00001261", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/6001-00001261", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001262 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001263", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001263", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001262 is ringing -- PJSIP/TOA-00001264 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001265", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001265", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001264 is ringing -- PJSIP/TOA-00001266 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001267", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001267", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001266 is ringing -- PJSIP/TOA-00001268 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001269", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001269", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001268 is ringing -- PJSIP/TOA-0000126a is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-0000126b", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-0000126b", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-0000126a is ringing -- PJSIP/TOA-0000126c is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-0000126d", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-0000126d", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-0000126c is ringing -- PJSIP/TOA-0000126e is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-0000126f", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-0000126f", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-0000126e is ringing -- PJSIP/TOA-00001270 is ringing -- Executing [6010@sip_trunk:1] Ringing("PJSIP/TOA-00001271", "") in new stack -- Executing [6010@sip_trunk:2] Dial("PJSIP/TOA-00001271", "PJSIP/6010@TOA") in new stack -- Called PJSIP/6010@TOA -- PJSIP/TOA-00001270 is ringing -- PJSIP/TOA-00001272 is ringing ...... [Nov 10 18:19:12] ERROR[37462]: res_timing_timerfd.c:93 timerfd_timer_open: Failed to create timerfd timer: Too many open files [Nov 10 18:19:12] WARNING[37462]: alertpipe.c:48 ast_alertpipe_init: Failed to create alert pipe with eventfd(), falling back to pipe(): Too many open files [Nov 10 18:19:12] WARNING[37462]: alertpipe.c:57 ast_alertpipe_init: Failed to create alert pipe: Too many open files [Nov 10 18:19:12] ERROR[37462]: chan_pjsip.c:3071 chan_pjsip_incoming_request: TOA: Failed to allocate new PJSIP channel on incoming SIP INVITE == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001355", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001355' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001353", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001353' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001351", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001351' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-0000134f", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-0000134f' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-0000134d", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-0000134d' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-0000134b", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-0000134b' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001349", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001349' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001347", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001347' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001345", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001345' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001343", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001343' == Everyone is busy/congested at this time (1:0/1/0) -- Executing [6010@sip_trunk:3] Hangup("PJSIP/TOA-00001341", "") in new stack == Spawn extension (sip_trunk, 6010, 3) exited non-zero on 'PJSIP/TOA-00001341' ...... [Nov 10 18:19:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:19:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:19:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:19:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:20:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:20:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:20:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:20:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:21:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:21:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:21:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:21:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:22:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:22:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:22:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:22:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:23:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:23:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:23:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:23:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:24:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:24:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:24:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:24:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:25:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:25:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:25:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:25:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:26:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:26:29] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:26:56] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) [Nov 10 18:26:59] WARNING[37462]: res_pjsip_outbound_registration.c:1186 handle_registration_response: '404' fatal response received from 'sip:192.168.1.70:5060' on registration attempt to 'sip:TOA@192.168.1.70:5060', retrying in '30' seconds [Nov 10 18:27:26] WARNING[37462]: res_pjsip_registrar.c:1166 find_registrar_aor: AOR '' not found for endpoint 'TOA' (192.168.1.70:5060) ``` ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [November 10, 2022, 11:09am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/6 "2022-11-10T11:09:44Z")
That log shows the call looping back to the same Asterisk instances; it is both SIP client and SIP server for the same call. Which is what your dialplan does. The only extension defined, on TOB, is \_6XXX, which ends the call back to TOA. ---
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 10, 2022, 11:21am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/8 "2022-11-10T11:21:16Z")
It looks like that’s what you said,but I don’t konw which step is wrong ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [November 10, 2022, 11:25am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/9 "2022-11-10T11:25:30Z")
Your extensions.conf is incomplete (and you don’t have a particularly well thought numbering scheme). ---
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 10, 2022, 11:39am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/10 "2022-11-10T11:39:48Z")
I’m sorry I’m new to Asterisk and I don’t get it yet Can you tell me what to do? ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [November 10, 2022, 12:29pm UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/11 "2022-11-10T12:29:46Z")
Define an extension 6010 on TOB that routes to endpoint 6010 on that system. ---
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 21, 2022, 9:18am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/12 "2022-11-21T09:18:15Z")
Now I can connect two servers with registration in PJSIP.conf, but can I connect two server without registration? I want to call another server in extension.conf，What should I do？ ---
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 21, 2022, 9:21am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/13 "2022-11-21T09:21:51Z")
![image](https://global.discourse-cdn.com/asterisk/original/2X/7/744d3371fb7db1f26046060c1ad8c4d9c14903c9.png) I saw something like this in an article，Could I connect another server by this way? ---
**Author:** ![TONYGFX](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/tonygfx/32/6084_2.png) [@TONYGFX](https://community.asterisk.org/u/TONYGFX)\ **Post date:** [November 21, 2022, 9:23am UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/14 "2022-11-21T09:23:50Z")
But I dont understand what does port 9999 mean？Which port？ ---
**Author:** ![david551](https://avatars.discourse-cdn.com/v4/letter/d/3bc359/32.png) [@david551](https://community.asterisk.org/u/david551)\ **Post date:** [November 21, 2022, 12:20pm UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/15 "2022-11-21T12:20:06Z")
chan\_pjsip always requires an endpoint, so that particular example is not relevant. Also, for what people call “trunks”, one would want to define the addresses in the the driver configuration, not in the dialplan. When using static addresses, that is the contact value in the aoir section. The port is port in SIP request URI, if it other than the default: [https://www.rfc-editor.org/rfc/rfc3261#section-19.1.1](https://www.rfc-editor.org/rfc/rfc3261#section-19.1.1) You need to do some more background reading, ---
**Author:** ![system](https://global.discourse-cdn.com/asterisk/original/2X/4/475d0c889911cfb84ac4881ad6df8b523e3f9105.png) [@system](https://community.asterisk.org/u/system)\ **Post date:** [December 21, 2022, 12:20pm UTC](https://community.asterisk.org/t/sip-trunk-between-many-servers/94671/16 "2022-12-21T12:20:17Z")
Closed on December 21, 2022, 12:20pm UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.