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Thread: quick CCM Trace question




quick CCM Trace question
user name
2007-09-28 10:26:56
Real basic question here..
I have someone reporting a dropped call between IP Phone and PSTN, so I dug up the CCM traces for event. Tracked it down and found the following message inbound to CCM from the MGCP PRI:
DISCONNECT, pd = 8, callref = 0x021C, Message Size = 9 bytes
Cause i = 0x8090 - Normal call clearing

I don't see any SCCP messages to/from the IP Phone between the time the media transmission begins and that event occurs.

Am I correct in interpreting that this is the gateway telling callmanager that the PSTN has disconnected the call?


--
Ed Leatherman
Senior Voice Engineer
West Virginia University
Telecommunications and Network Operations
Re: quick CCM Trace question
user name
2007-09-28 11:16:46
if you are really sure that CCM did receive this message
inbound from
the GW and did not send it, then it indicates that the PSTN
disconnected the call.
You should also see CCM acknowledging the DISCONNECT message
with a
RELEASE and the PSTN would send a RELEASE COMPLETE to
terminate the
call...

Regards
Patrick

On 9/28/07, Ed Leatherman <ealeathermangmail.com> wrote:
> Real basic question here..
> I have someone reporting a dropped call between IP
Phone and PSTN, so I dug
> up the CCM traces for event. Tracked it down and found
the following message
> inbound to CCM from the MGCP PRI:
> DISCONNECT, pd = 8, callref = 0x021C, Message Size = 9
bytes
> Cause i = 0x8090 - Normal call clearing
>
> I don't see any SCCP messages to/from the IP Phone
between the time the
> media transmission begins and that event occurs.
>
> Am I correct in interpreting that this is the gateway
telling callmanager
> that the PSTN has disconnected the call?
>
>
> --
> Ed Leatherman
> Senior Voice Engineer
> West Virginia University
> Telecommunications and Network Operations
> _______________________________________________
> cisco-voip mailing list
> cisco-voippuck.nether.net
> h
ttps://puck.nether.net/mailman/listinfo/cisco-voip
>
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