09-25-2023 09:51 AM
Hi
we have two cucm A and B, each one is on site, connected by wan ip
we have configured sip trunk on each cucm A and B with ip up and full service
on site B call site A, and other can't , with cisco TRM we have seen that site call to other site no use sip trunk defined that why site A no call site B.
Site A use route pattern 2370xxxx with RL-TEST, and RL linked to RG-TEST linked to sip trunk defined (with ip cucm B).
Please any help i ll apreciate it.
thanks
09-25-2023 10:07 AM
If the SIP Trunk is up and in Full Service, but calls are successful in only one direction, the question I would ask next is if both trunks have a correct Inbound CSS.
If so, the next question would be if any digit manipulation is happening (or needs to happen) in the direction that the call is failing.
Maren
09-25-2023 11:34 AM
Please use the CUCM Dialed Number Analyzer (DNA) tool at Site B to troubleshoot the call flow. The output of the DNA tool may reveal any missing or incorrect configuration elements.
Additionally, please collect the SIP logs for the call and post them here so that we can further analyze the call path from Site B to Site A.
09-25-2023 07:54 PM
If i understood correctly, your problem is that you are not able to make extenions calling between two site using a SIP trunk you created recently.Here mentioned below are few things you must check.
09-26-2023 12:52 AM
thanks for yours replys
09-26-2023 05:10 AM
Great! So that shows the the call should successfully flow out of the egress CUCM cluster. Now go to the DNA on the ingress (receiving) cluster and run another analysis.
Choose Analyzer > Trunks and select the trunk receiving the call. In the "Analyzer Input" section, enter "6001" in "Calling Party" and enter "23503424" in "Dialed Digits". This will perform an analysis of how the receiving CUCM cluster will process the call inbound. Let us know what you find.
Maren
09-26-2023 05:39 AM
As you have signaled it in previous , the site B have css and partition and in site A no css and no partition thats why B call A and A no can call B, whats i must do in A to call B?
thanks
09-26-2023 06:11 AM
Let me explain this way: Phone A in Cluster A will dial a number. The CSS of Phone A must have the Partition associated with the number in order to dial it. If the number dialed is a Route Pattern that will send the call over a SIP Trunk to another cluster, then assuming the trunk is in service the call will egress from Cluster A successfully.
Now the call will be received on Cluster B on the SIP Trunk that connects it with Cluster A. What we want is for the call to ring on Phone B on Cluster B. In order for this to happen, the SIP Trunk on Cluster B must have an Inbound Calling Search Space (as configured on the trunk on Cluster B) that has the Partition of the Directory Number on Phone B.
Both sides - the outbound call flow on Cluster A AND the inbound call flow on Cluster B - must be configured correctly for the call to be successful. The Dialed Number Analyzer output above shows that the outbound call flow on Cluster A should be successful. The next thing I would check, then, would be how Cluster B would process the call inbound.
I hope this explanation is helpful.
Maren
09-26-2023 06:41 AM
Hope this helps
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