General CUCM 7.0, MGCP, MTP questions

wilson_1234_2 · ‎12-28-2009

We have CUCM 7.0 in our main branch, we have 9 remote br

anches configured via MGCP to call manager.

The branches are also configured for SRST and each remote branch has a PRI.

The remote branches currently are using their respective PRI for all outside network calls.

I have some general questions that hopefully can be answered with the information given:

1.If all users company wide (including remote branches) were to experience not being able to call forward, transfer calls or put calls on hold, would the most likely problem be with MTP resources?

2. If so, where would be the first place to look?

3. If a single branch were to make the same complaint, where would be the first place to look then?

4. If a branch were to experience fast busy when attempting to dial out, would the most likely issue be the remote gateway no longer registered in Call Manager?

5. If so, the first action is to re-register gateway?

6. For MOH, is the MOH file usually at the main branch and all branches access this file when calls are placed on hold?

Currently we have the following line in the branch gateway config(10.10.10.10, 172.16.10.10 are the respective branch gateway voice interfaces):

Call-manager-fallback

multicast moh 239.1.1.1 port 16384 route 10.10.10.10 172.16.10.10

gogasca · ‎12-31-2009

1.If all users company wide (including remote branches) were to experience not being able to call forward, transfer calls or put calls on hold, would the most likely problem be with MTP resources?

MGCP normally doesnt use MTP...it may be transcoder...or 1000 things

2. If so, where would be the first place to look? CUCM traces and understand the call flow with all components

3. If a single branch were to make the same complaint, where would be the first place to look then? same above

4. If a branch were to experience fast busy when attempting to dial out, would the most likely issue be the remote gateway no longer registered in Call Manager? 1000 things also, check component by component

IP Phone --- CUCM -- GW

CSS GW register debug isdn q931

5. If so, the first action is to re-register gateway? above

6. For MOH, is the MOH file usually at the main branch and all branches access this file when calls are placed on hold?

Currently we have the following line in the branch gateway config(10.10.10.10, 172.16.10.10 are the respective branch gateway voice interfaces):

Call-manager-fallback

multicast moh 239.1.1.1 port 16384 route 10.10.10.10 172.16.10.10

MOH multicast is used to stream MOH locally, avoind using WAN BW for MOH