[cisco-voip] Adhoc Conference issue.

[Pavan K]

What kind of a Conf bridge are you using. Hardware or Software ?
Once a party drops out of a 3 party conf, the other two parties are
directly connected to one another and the bridge is no longer used.

Detailed UCM traces would point out any signaling issues but the
IPVMS/MSA traces are not useful after conf drop down to 2 parties.
Sounds like a media cut-through issue based on your symptoms.

(1) Check if you get two way audio for a basic call between the
affected phones ?
(2) Transfer the external caller to a different IP phone and transfer
back. Does it still work ?
Conference uses the same underlying mechanism as transfer to bridge
the last two parties.


-Pavan



On Thu, Aug 23, 2012 at 9:36 AM,  <george.hendrix at l-3com.com> wrote:
> I would check your regions for each phone (and gateway) and also available
> dsp resources and how they are configured, codecs that they are setup to
> support.
>
>
>
> Is the external call going thru an h.323 gateway?  If so, make sure it has
> media resources assigned in its config in CUCM.
>
>
>
> Regards,
>
> Bill
>
>
>
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of
> sarjot at googlemail.com
> Sent: Thursday, August 23, 2012 10:23 AM
> To: sourav ......pa$$ion of IT
>
>
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Adhoc Conference issue.
>
>
>
> Hi
>
> Please see attached, the detail CUCM IP Voice Streaming logs on both the pub
> and sub. Conference initiator ext 4512 dial external 9016149848XXX, then add
> ext 4560 to the conferene. Once ext 4560 drops out. Ext 4512 could not hear
> external caller anymore but external caller can hear ext 4512. The
> conference call could not continue.
>
> Regards
>
> Sarjo
>
> Sent from my BlackBerry® smartphone
>
> ________________________________
>
> From: "sourav ......pa$$ion of IT" <itguy07 at gmail.com>
>
> Date: Thu, 23 Aug 2012 17:19:12 +0530
>
> To: <sarjot at gmail.com>
>
> Cc: <cisco-voip at puck.nether.net>
>
> Subject: Re: [cisco-voip] Adhoc Conference issue.
>
>
>
> Is it possible to post CUCM detailed traces,with the DN & external party
> number? You can set traces for the Cisco IP Voice Media Streaming
> Application service.
>
> On Thu, Aug 23, 2012 at 4:46 PM, <sarjot at googlemail.com> wrote:
>
> Hi All,
>
> Has anyone come across a situation whereby when user A call user B
> internally and then call an external party on an adhoc conference. The
> problem is when user B drops off user A cannot hear the external party but
> the external can hear user A. The conference never seems to continue if one
> party drops internally.
>
> Any idea why this is happening.
>
> Regards
>
> Sarj
> Sent from my BlackBerry® smartphone
>
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>
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-- 
- Pavan