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voice channels always up even if PABX channels are idle

Problem Description: From the show voice call summary, we are showing the

first 6 port waiting for release response, but on the PBX side it is showing idle.

We have 16 channels available, so when 10 channels

are occupy, the next channels will not be available

cause the router does not release the port for use,

although the PBX is showing channel idle.

sgcis2#sh voice call summary

PORT CODEC VAD VTSP STATE VPM STATE

============ ======== === ==================== ======================

4/0:1.1 None y S_WAIT_RELEASE_RESP EM_WAIT_ONHOOK

4/0:1.2 None y S_WAIT_RELEASE_RESP EM_WAIT_ONHOOK

4/0:1.3 None y S_WAIT_RELEASE_RESP EM_WAIT_ONHOOK

4/0:1.4 None y S_WAIT_RELEASE_RESP EM_WAIT_ONHOOK

4/0:1.5 None y S_WAIT_RELEASE_RESP EM_WAIT_ONHOOK

4/0:1.6 None y S_WAIT_RELEASE_RESP EM_WAIT_ONHOOK

4/0:1.7 g729r8 y S_CONNECT EM_WAIT_RELEASE_REQ

4/0:1.8 - - - EM_ONHOOK

4/0:1.9 g729ar8 y S_CONNECT EM_CONNECT

4/0:1.10 - - - EM_ONHOOK

4/0:1.11 - - - EM_ONHOOK

4/0:1.12 g729r8 y S_CONNECT EM_CONNECT

4/0:1.13 g729r8 y S_CONNECT EM_CONNECT

4/0:1.14 g729r8 y S_CONNECT EM_CONNECT

4/0:1.15 - - - EM_ONHOOK

4/0:1.17 - - - EM_ONHOOK

4/0:1.18 - - - EM_ONHOOK

We had already reset the voice port by doing

a shut/no shut to the voice port 4/0:1 and everything is

back to normal.

Questions

-----------------

How did this happen?

How to prevent this from happening again?

-------------------

The followin POTS Dial-peer are configure on this router. I think some of these are quite redundant. Does it have something to do with the 4/0:1 channels 1 to 7 not being able to release the call even if the PABX does?

Dial-Peer Dest. Pattern

10 to 27 279….

30 to 45 3……

50 to 65 8279….

66 to 70 8285….

  • Other Collaboration Voice and Video Subjects
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