Busy Inbound Call

I updated the external router public address and performed the SIP Settings > NAT Settings >External Address (Detect Network Settings). The new IP address is now in the External Address, however, I now have odd behaviors with the system.

Issue:

  1. New Inbound calls are busy when calling to the FreePBX server
  2. I can make calls leaving the FreePBX server with Zulu from a computer off the network
  3. If I make a change to the FreePBX server and Apply settings, CALLS WORK
  4. After 5 minutes, calls stop working again

Tried:
I have tried to disable the firewall, same issue occurs
I have tried to allow Anonymous Inbound SIP Calls, same issue occurs
I check and applied updates, same issue occurs

LOGS

94854 [2023-01-07 15:44:31] ERROR[59447] config_options.c: Unable to load config file ‘acl.conf’
94855 [2023-01-07 15:44:31] WARNING[59447] named_acl.c: Could not reload ACL config
94856 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘manager’ (Asterisk Manager Interface)
94857 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘plc’ (PLC)
94858 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘udptl’ (UDPTL)
94859 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjproject.so’ (PJPROJECT Log and Utility Support)
94860 [2023-01-07 15:44:31] ERROR[59447] res_sorcery_config.c: Unable to load config file ‘pjproject.conf’
94861 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip.so’ (Basic SIP resource)
94862 [2023-01-07 15:44:31] ERROR[7344] res_pjsip_config_wizard.c: Unable to load config file ‘pjsip_wizard.conf’
94863 [2023-01-07 15:44:31] ERROR[7344] res_pjsip_config_wizard.c: Unable to load config file ‘pjsip_wizard.conf’
94864 [2023-01-07 15:44:31] NOTICE[7344] res_pjsip/config_transport.c: Transport ‘0.0.0.0-udp’ is not fully reloadable, not reloading: protocol, bind, TLS (everything but certificate and private key if filename is unchanged), TCP, ToS, or CoS options.
94865 [2023-01-07 15:44:31] NOTICE[7344] res_pjsip/config_transport.c: Transport ‘0.0.0.0-ws’ is not fully reloadable, not reloading: protocol, bind, TLS (everything but certificate and private key if filename is unchanged), TCP, ToS, or CoS options.
94866 [2023-01-07 15:44:31] NOTICE[7344] res_pjsip/config_transport.c: Transport ‘0.0.0.0-wss’ is not fully reloadable, not reloading: protocol, bind, TLS (everything but certificate and private key if filename is unchanged), TCP, ToS, or CoS options.
94867 [2023-01-07 15:44:31] ERROR[7344] res_pjsip_config_wizard.c: Unable to load config file ‘pjsip_wizard.conf’
94868 [2023-01-07 15:44:31] ERROR[7344] res_pjsip_config_wizard.c: Unable to load config file ‘pjsip_wizard.conf’
94869 [2023-01-07 15:44:31] NOTICE[7344] sorcery.c: Type ‘system’ is not reloadable, maintaining previous values
94870 [2023-01-07 15:44:31] ERROR[7344] res_pjsip_config_wizard.c: Unable to load config file ‘pjsip_wizard.conf’
94871 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip_authenticator_digest.so’ (PJSIP authentication resource)
94872 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_resolver_unbound.so’ (Unbound DNS Resolver Support)
94873 [2023-01-07 15:44:31] ERROR[59447] config_options.c: Unable to load config file ‘resolver_unbound.conf’
94874 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip_endpoint_identifier_ip.so’ (PJSIP IP endpoint identifier)
94875 [2023-01-07 15:44:31] ERROR[59447] res_pjsip_config_wizard.c: Unable to load config file ‘pjsip_wizard.conf’
94876 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_stir_shaken.so’ (STIR/SHAKEN Module for Asterisk)
94877 [2023-01-07 15:44:31] ERROR[59447] res_sorcery_config.c: Unable to load config file ‘stir_shaken.conf’
94878 [2023-01-07 15:44:31] ERROR[59447] res_sorcery_config.c: Unable to load config file ‘stir_shaken.conf’
94879 [2023-01-07 15:44:31] ERROR[59447] res_sorcery_config.c: Unable to load config file ‘stir_shaken.conf’
94880 [2023-01-07 15:44:31] ERROR[59447] res_sorcery_config.c: Unable to load config file ‘stir_shaken.conf’
94881 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_musiconhold.so’ (Music On Hold Resource)
94882 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_smdi.so’ (Simplified Message Desk Interface (SMDI) Resource)
94883 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_crypto.so’ (Cryptographic Digital Signatures)
94884 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_rtp_asterisk.so’ (Asterisk RTP Stack)
94885 [2023-01-07 15:44:31] VERBOSE[59447] res_rtp_asterisk.c: RTP Allocating from port range 10000 → 20000
94886 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip_outbound_publish.so’ (PJSIP Outbound Publish Support)
94887 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip_mwi.so’ (PJSIP MWI resource)
94888 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip_publish_asterisk.so’ (PJSIP Asterisk Event PUBLISH Support)
94889 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘chan_iax2.so’ (Inter Asterisk eXchange (Ver 2))
94890 [2023-01-07 15:44:31] WARNING[59447] iax2/firmware.c: Error opening firmware directory ‘/var/lib/asterisk/firmware/iax’: No such file or directory
94891 [2023-01-07 15:44:31] NOTICE[59447] iax2/provision.c: No IAX provisioning configuration found, IAX provisioning disabled.
94892 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘chan_sip.so’ (Session Initiation Protocol (SIP))
94893 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘chan_dahdi.so’ (DAHDI Telephony w/PRI & SS7 & MFC/R2)
94894 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_adsi.so’ (ADSI Resource)
94895 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_fax.so’ (Generic FAX Applications)
94896 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_ari.so’ (Asterisk RESTful Interface)
94897 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip_notify.so’ (CLI/AMI PJSIP NOTIFY Support)
94898 [2023-01-07 15:44:31] VERBOSE[2669] chan_sip.c: Reloading SIP
94899 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_pjsip_outbound_registration.so’ (PJSIP Outbound Registration Support)
94900 [2023-01-07 15:44:31] ERROR[59447] res_pjsip_config_wizard.c: Unable to load config file ‘pjsip_wizard.conf’
94901 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘app_confbridge.so’ (Conference Bridge Application)
94902 [2023-01-07 15:44:31] NOTICE[59447] confbridge/conf_config_parser.c: Adding default_menu menu to app_confbridge
94903 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘res_parking.so’ (Call Parking Resource)
94904 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/71/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94905 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/72/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94906 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/73/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94907 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/74/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94908 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/75/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94909 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/76/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94910 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/77/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94911 [2023-01-07 15:44:31] VERBOSE[2669] netsock2.c: Using SIP TOS bits 96
94912 [2023-01-07 15:44:31] VERBOSE[2669] netsock2.c: Using SIP CoS mark 4
94913 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/78/1, registrar=res_parking/default; con=((nil)); con->root=(nil)
94914 [2023-01-07 15:44:31] VERBOSE[59447] pbx.c: Remove parkedcalls/70/1, registrar=res_parking; con=((nil)); con->root=(nil)
94915 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘app_meetme.so’ (MeetMe conference bridge)
94916 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘cdr_manager.so’ (Asterisk Manager Interface CDR Backend)
94917 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘cel_manager.so’ (Asterisk Manager Interface CEL Backend)
94918 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘cel_odbc.so’ (ODBC CEL backend)
94919 [2023-01-07 15:44:31] VERBOSE[2669] tcptls.c: TLS/SSL ECDH initialized (automatic), faster PFS ciphers enabled
94920 [2023-01-07 15:44:31] VERBOSE[2669] tcptls.c: TLS/SSL certificate ok
94921 [2023-01-07 15:44:31] VERBOSE[59447] cel_odbc.c: Found CEL table [email protected]
94922 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘app_amd.so’ (Answering Machine Detection Application)
94923 [2023-01-07 15:44:31] VERBOSE[59447] app_amd.c: AMD defaults: initialSilence [2500] greeting [1500] afterGreetingSilence [800] totalAnalysisTime [5000] minimumWordLength [100] betweenWordsSilence [50] maximumNumberOfWords [3] silenceThreshold [256] maximumWordLength [5000]
94924 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘app_playback.so’ (Sound File Playback Application)
94925 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘app_flite.so’ (Flite TTS Interface)
94926 [2023-01-07 15:44:31] WARNING[59447] app_flite.c: Flite: Unable to read config file flite.conf. Using default settings
94927 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘codec_dahdi.so’ (Generic DAHDI Transcoder Codec Translator)
94928 [2023-01-07 15:44:31] VERBOSE[59447] loader.c: Reloading module ‘app_voicemail.so’ (Comedian Mail (Voicemail System))
94929 [2023-01-07 15:44:32] WARNING[59447] app_voicemail.c: maxsilence should be less than minsecs or you may get empty messages
94930 [2023-01-07 15:44:32] VERBOSE[59447] loader.c: Reloading module ‘codec_ast16_g729.so’ (Digium G.729 Annex A Codec (optimized for x86_64)
94931 [2023-01-07 15:44:32] VERBOSE[2669] netsock2.c: Using SIP TOS bits 96
94932 [2023-01-07 15:44:32] VERBOSE[2669] netsock2.c: Using SIP TOS bits 96 in TCLASS field.
94933 [2023-01-07 15:44:32] VERBOSE[2669] netsock2.c: Using SIP CoS mark 4
94934 [2023-01-07 15:44:32] WARNING[2669] chan_sip.c: Section ‘vital-inbound’ lacks type
94935 [2023-01-07 15:44:34] VERBOSE[59447] loader.c: Reloading module ‘app_queue.so’ (True Call Queueing)
94936 [2023-01-07 15:44:34] NOTICE[59447] app_queue.c: queuerules.conf has not changed since it was last loaded. Not taking any action.

Adding some additional logs as I am thinking the WARNING may have something to do with the issue.

=== LOGS ===
75 [2023-01-07 16:19:55] VERBOSE[2559] asterisk.c: Remote UNIX connection
96376 [2023-01-07 16:19:55] VERBOSE[74911] asterisk.c: Remote UNIX connection disconnected
96377 [2023-01-07 16:19:55] VERBOSE[2559] asterisk.c: Remote UNIX connection
96378 [2023-01-07 16:19:55] VERBOSE[74917] asterisk.c: Remote UNIX connection disconnected
96379 [2023-01-07 16:19:55] VERBOSE[2559] asterisk.c: Remote UNIX connection
96380 [2023-01-07 16:19:55] VERBOSE[74919] asterisk.c: Remote UNIX connection disconnected
96381 [2023-01-07 16:19:55] VERBOSE[2559] asterisk.c: Remote UNIX connection
96382 [2023-01-07 16:19:55] VERBOSE[74921] asterisk.c: Remote UNIX connection disconnected
96383 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6000/accountcode does not exist
96384 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6100/accountcode does not exist
96385 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6101/accountcode does not exist
96386 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6103/accountcode does not exist
96387 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6104/accountcode does not exist
96388 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6130/accountcode does not exist
96389 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6151/accountcode does not exist
96390 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6152/accountcode does not exist
96391 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6153/accountcode does not exist
96392 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6154/accountcode does not exist
96393 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6155/accountcode does not exist
96394 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6158/accountcode does not exist
96395 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6200/accountcode does not exist
96396 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6201/accountcode does not exist
96397 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6202/accountcode does not exist
96398 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6203/accountcode does not exist
96399 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6204/accountcode does not exist
96400 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6205/accountcode does not exist
96401 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6206/accountcode does not exist
96402 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6207/accountcode does not exist
96403 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6301/accountcode does not exist
96404 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6302/accountcode does not exist
96405 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6303/accountcode does not exist
96406 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6304/accountcode does not exist
96407 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6305/accountcode does not exist
96408 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6306/accountcode does not exist
96409 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6401/accountcode does not exist
96410 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6402/accountcode does not exist
96411 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6403/accountcode does not exist
96412 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6404/accountcode does not exist
96413 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6405/accountcode does not exist
96414 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6406/accountcode does not exist
96415 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6407/accountcode does not exist
96416 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6408/accountcode does not exist
96417 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6409/accountcode does not exist
96418 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6500/accountcode does not exist
96419 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6501/accountcode does not exist
96420 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6502/accountcode does not exist
96421 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6503/accountcode does not exist
96422 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6504/accountcode does not exist
96423 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6505/accountcode does not exist
96424 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6600/accountcode does not exist
96425 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6700/accountcode does not exist
96426 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6800/accountcode does not exist
96427 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6801/accountcode does not exist
96428 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6802/accountcode does not exist
96429 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6803/accountcode does not exist
96430 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6804/accountcode does not exist
96431 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6805/accountcode does not exist
96432 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6900/accountcode does not exist
96433 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6901/accountcode does not exist
96434 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6904/accountcode does not exist
96435 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6905/accountcode does not exist
96436 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/6906/accountcode does not exist
96437 [2023-01-07 16:19:56] WARNING[74828] db.c: AstDB key /AMPUSER/7000/accountcode does not exist
96438 [2023-01-07 16:19:57] VERBOSE[2559] asterisk.c: Remote UNIX connection
96439 [2023-01-07 16:19:57] VERBOSE[75054] loader.c: Reloading module ‘res_odbc.so’ (ODBC resource)
96440 [2023-01-07 16:19:57] NOTICE[75054] res_odbc.c: Registered ODBC class ‘asteriskcdrdb’ dsn->[MySQL-asteriskcdrdb]
96441 [2023-01-07 16:19:57] VERBOSE[75054] loader.c: Reloading module ‘extconfig’ (Configuration)
96442 [2023-01-07 16:19:57] VERBOSE[75054] loader.c: Reloading module ‘res_config_odbc.so’ (Realtime ODBC configuration)
96443 [2023-01-07 16:19:57] VERBOSE[75054] loader.c: Reloading module ‘cdr’ (CDR Engine)
96444 [2023-01-07 16:19:57] ERROR[75054] config_options.c: Unable to load config file ‘cdr.conf’
96445 [2023-01-07 16:19:57] VERBOSE[75054] loader.c: Reloading module ‘cdr_adaptive_odbc.so’ (Adaptive ODBC CDR backend)

I do not think this is related to the Firewall or Sip Settings. I find that the server loses its ability to receive calls after 5ish minutes. Once I hit submit within SIP Settings (no changes made) and Apply the issue is gone for 5 minutes.

Any assistance troubleshooting this is appreciated.

Thank you

Sounds like a dynamic firewall or NAT rule in the router is timing out…

If you can’t fix it on the router, setting short register timers and high quailify frequencies may keep the rule refreshed.

Thank you for the response.
Does FreePBX re-apply the firewall each time “Apply Config” is pressed? I tried to disable the firewall completely, I still get the same behavior.

I find that regardless of any changes made in the console, if I hit “Apply Config” the system will work properly for a few minutes. I do not understand what is happeneing to allow the system to work, then stop after a few minutes.

Thanks

I’m addressing this from an Asterisk point of view, and assuming the problem is in the router not in the FreePBX machine. That’s where most such problems lie.

No timeout changes were made to the router, just updating the old IP with the new IP.

Are there any settings I should look for? I agree that there seems to be a timeout somewhere. I find it interesting that if I apply any settings to the PBX, the system works for a short time. Can you suggest any specific logs I should look into?

This is what I see in the Asterisk Log Files “full” log before it stops working:

WARNING[2784] chan_sip.c: Section ‘vital-inbound’ lacks type
[2023-01-07 17:51:00] VERBOSE[18714] loader.c: Reloading module ‘app_queue.so’ (True Call Queueing)
[2023-01-07 17:51:00] NOTICE[18714] app_queue.c: queuerules.conf has not changed since it was last loaded. Not taking any action.
[2023-01-07 17:51:00] VERBOSE[18714] asterisk.c: Remote UNIX connection disconnected
[2023-01-07 17:54:20] NOTICE[7500] res_pjsip_exten_state.c: Endpoint ‘6302’ state subscription failed: Extension ‘992363021’ does not exist in context ‘from-internal’ or has no associated hint

vital-inbound is my inbound trunk, however, I did not make any modifications to that entry.

That will, with a typical configuration result in a REGISTER request being sent, which as an outbound request, is likely to result in a router generating new port forwarding and firewall pass through rules. The normal work rounds for routers timing out involve using register and qualify to ensure that outbound requests are sufficiently frequent, that router rules don’t time out.

Why did you need to do this?

The ISP requested the office to change their IP addresses. Because of that, I needed to make modifications to the PBX.

I installed a second FreePBX yesterday and configured the trunk with a pjsip connection to the provider. The trunk remained active, I did not receive a busy signal like the original PBX server. That said, I am going to try and reconfigure the orignal server’s trunk lines. The lines are configured as sip, not pjsip.

I believe I have it working now. It seems that the original inbound “chan_sip” trunk was timing out. I configured a new “pjsip” inbound trunk and have been able to successfully test inbound calls.

I will continue testing this morning and close the case this afternoon if all seems to remain working.

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