Intermittent dropped calls

Unanswered Question
Oct 22nd, 2007
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Customer is dropping intermitent calls to the PSTN (CCM 4.1 with MGCP gateway) and to internal H.323 Conferencing unit. Calls are "live" for anywhere between 2-30 minutes before being dropped. Internal calls have no problems.


No configuration changes have been done over the last month. Network has been overprovisioned by a large amount so were no lacking resources. No layer 2 QOS/congestion issues, no layer 3 QOS/congestion issues. No Slip or alarms on T1 interfaces. Any suggestion on what is causing calls to drop? CCM/MGCP stay registered, layer 3 remains active. No firewall in scenario.


Any ideas of what could be happening.


thanks in advance,

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Zin.Karzazi Mon, 10/22/2007 - 08:53
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which Phone firmware version are u using? upgrade the phone fw on one phone and see if that solves the problem.

UCcomp2007 Mon, 10/22/2007 - 09:44
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Customer running latest 7960G firmware (P00308000700).

cmterm-7940-7960-sccp.8-0-7.exe

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