Solved Outbound Calls Failing

[wpanagotopulos]

Hi All:

Desperately need help -

Since 6/30, we have not been able to make outbound calls (It just came to my attention - it's a private school and few people have been in over the past several days)

Notes:

• Inbound calls work fine
• interoffice calls work fine
• I am using two Grandstream GXW 4104s
• I have rebooted the system and rebooted the GXWs - no change
• I deleted and readded the outbound rule - no change
• IP Addresses are all correct
• I was going to revert to a previous backup but will hold off until I can log into the GXW
  • (TBH, I have never rolled back and didn't want to change too many variables, since most other call functions are working correctly)

I strongly suspect the GXW needs to be re-provisioned. but I appreciate any help.

Thanks,
Bill.

• 3CX Version, 18.0 (Build 314)
• Server OS, Debian
• Is the 3CX Server Hosted and where? On-premises
• IP Phone Make/Model/Firmware version, Multiple phones (Yealink, FXS Gateway)
• Provisioning Method: Local
• Trunk Provider or VoIP Gateway Make/Model, Grandstream GXW-4104
• Has the Firewall Checker passed: no
• Are custom Phone Templates being used: NO

Log snippet below on a test call:

07/11/2022 12:49:45 PM - Exception: ParseException ../../rutil/ParseBuffer.hxx:230, Parse failed unexpected eof in context:
[NPA]8161356
^
@ ../../rutil/ParseBuffer.hxx:230
07/11/2022 12:49:45 PM - Call to T:Line:10000>>[NPA]8161356@[Dev:sip:[email protected]:5060;transport=udp;user=phone] from L:21.1[Extn:116] failed, cause: Cause: 408 Request Timeout/INVITE from local

07/11/2022 12:49:45 PM - [CM503003]: Call(C:21): Call to <sip:[NPA][email protected]:5060> has failed; Cause: 408 Request Timeout/INVITE from local

07/11/2022 12:49:13 PM - Call to T:Line:10001>>[NPA]8161356@[Dev:sip:[email protected]:5066;transport=udp;user=phone] from L:21.1[Extn:116] failed, cause: Cause: 408 Request Timeout/INVITE from local

07/11/2022 12:49:13 PM - [CM503003]: Call(C:21): Call to <sip:[NPA][email protected]:5060> has failed; Cause: 408 Request Timeout/INVITE from local

 

[leejor]

First thing to do is to confirm you have dialtone, on all lines, at the back of 4104. Are the trunks showing as registered in 3CX?

 

[wpanagotopulos]

Update: Turns out the IT crew upgraded the router and for some reason the GX 4104s both got new IPs. I had asked them if this was the case but someone missed this important fact.

Issue solved by loading the new IPs into the system

Next step is to have the IT guys reserve these IPs!!