[cisco-voip] Strange intermittent MoH problem

Tim Reimers treimers at ashevillenc.gov
Tue Apr 1 16:13:01 EDT 2008


Something in the multicast configuration of the involved layer 2
devices? 

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Erick Bergquist
Sent: Tuesday, April 01, 2008 4:06 PM
To: Ryan Ratliff
Cc: cisco-voip at puck-nether.net
Subject: Re: [cisco-voip] Strange intermittent MoH problem

Both the music and the MP call, but it is clear and not cutting and out
every second or so.
When I've caught it happening, it seems to be calls where MoH is playing
due to a Network Hold event (parked call, etc). I can't get it to happen
with a user hold.

On Tue, Apr 1, 2008 at 2:32 PM, Ryan Ratliff <rratliff at cisco.com> wrote:
> IP phones or PSTN calls?   Sounds like either crosstalk or a random
>  two devices using the same receive port for RTP and the stream from  
> MP reaching the phone somehow.
>  Do they hear just the MP audio or both MOH and MP audio alternating
>  every second or so?   The former is crosstalk, the latter is both RTP
>  streams reaching the phone on the port the phone is listening on.
>
>  -Ryan
>
>
>
>  On Apr 1, 2008, at 3:07 PM, Erick Bergquist wrote:
>  Anyone ever see people on hold with Multicast MoH (Network Hold it  
> appears to happen with) hear a meetingplace audio conference call  
> while they are on hold? The CCM and MP are seperate servers with  
> different conference bridges so I'm puzzled how the person on hold  
> hears the MP conferences sometimes. It doesn't happen all the time. Is

> real intermittent.
>  The Call Manager is version 4.1(3)sr4d and MeetingPlace Enterprise
5.4.
>
>  Erick
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>
>
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