Can someone please share the knoweldge of what could be the cause of the incoming call via SIP trunk being failed to reach analogue phone which is connected to a FXS port on CUBE? I have a site with a cave location where there was an existing telephone cabling and have provided an analogue phone in there. However, the SIP trunk is terminated on an another site which shares DID range and I have attached configuration of both CUBE routers.
Main site with SIP trunk: wan1r001 (Cisco 2911-VSEC-CUBE with 1 FXO and FXS)
The site with an analogue line: yan1r001 (Cisco 2911-VSEC-CUBE with 1 FXO and FXS)
CUCM Version: CUCM 8.6.2
I have also done 'debug ccsip message' and the following is its output when an incoming call was tested to the line. The call flow for that test call would be PSTN -> SIP SP -> CUBE at wan1r001 -> CUCM 8.6 > CUBE at yan1r001 -> end-point?
Oct 29 05:43:36.647: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Thanks Jorge for your help. I have replicated this issue and gathered debugs as attached. Complete configs are also attached.
FXS analogue lines that we use in the first CUBE are working fine but not this one at second CUBE. And I am seeing the CANCEL request in the debug on CUBE1 and the calling is failing over to "SIP failover number" which is there at SP level for "Business continuity" which should only happens when SIP trunk is out of service.
Can you please explain a bit of what you can see in the debugs?
I am just letting you know that the issue has been resolved. It was the change that we made on the CUBE2 router few days ago. It happened when Nortel PoE switches were replaced with Cisco ones and it slipped my mind to see the issue. After updating the SIP trunk's IP address in CUCM, both incoming calls and outbound calls to/from that analogue phone was working. The correct amount of debugging level as you advised has pointed me out this so thanks again.
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