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Caller get cutoff leaving voice mail

2800 with IOS ver 12.4(3a)

Message length is set to 300 seconds in Unity. A caller will get hungup on at 30 - 50 seconds. The gateway sends a DLCX here:

01/20/2006 11:17:26.949 CCM|MGCPHandler received msg from: 10.1.1.145

DLCX 996228534 S0/SU0/DS1-0/1@es1-voicegateway.spacex.corp MGCP 0.1

C: D000000001003401000000F5800003fa

I: 3AE1

P: PS=2499, OS=399840, PR=560, OR=89123, PL=0, JI=65, LA=0

E: 502

and then CCM disconnects with cause A9 "Temporary Failure"

Any idea why the gateway would destroy the connection?

1 REPLY
Cisco Employee

Re: Caller get cutoff leaving voice mail

Hi Von

Can you confirm you are not hitting this bug below? Is the problem on the mgcp gateway only?

CSCdw62748

V-mail will be cut off after 40sec if call via MGCP gateway

symptom

=======

If the outside call comes via MRP with MGCP protocol and ring a phone with no

answer, it will hit Unity and the caller leaves a V-mail. But the V-mail will

be cut off after ~40 sec. when the caller hear "click".

Another MRP running same software but using H.232 protocol has no such problem.

Work-around

===========

1) Disable RTCP timer in MGCP. Using global config:

router-name(config)#no mgcp timer receive-rtcp

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