From: lalit gupta (lalit.tech@gmail.com)
Date: Mon Mar 02 2009 - 14:03:46 ARST
Hi Vikram,
I completely agree with Mark, I have seen many times this issue and wasted
lot of time to figure it out. Just switch to CIPC.
Thanks and Regards,
Lalit
On Thu, Feb 26, 2009 at 7:59 AM, Mark Snow <msnow@ipexpert.com> wrote:
> If for any reason an IPBlue softphone is connected using G711, then
> transferred to another phone using G729 (or put on MoH using G729) -
> the IPBlue client does not properly switch from G711 to G729. This is
> simply a software bug and not much that can be done about it - other
> than as Cliff mentioned - to throw up a CIPC in its place and re-test
> to gain accurate results.
>
> HTH,
>
> --
> Mark Snow
> CCIE #14073 (Voice, Security)
>
> Senior Technical Instructor - IPexpert, Inc.
>
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>
>
>
> On Feb 26, 2009, at 7:20 AM, Vikram Singh wrote:
>
> > Hi Friends,
> >
> > I landed in a strange case last evening, during my RACK sessions. I
> > had configured IOS as well as 6k Transcoder and both were registered
> > at CCM. IOS transcoder taking the priority.
> >
> > HQ being a G711 region and BR1 communicating with it using G729.
> > IPCC ports in HQ region.
> >
> > When i was calling to IPCC AA from HQ phone all was in good shape.
> > Whereas when called from BR1 Phone to IPCC AA i cud see call getting
> > connected on Phone and was not disconnecting till i do it. Also on
> > CCM I could see Transcoder Being Invoked using Perfmon tool but was
> > not able to hear anything.
> >
> > Please help me understand :
> > 1. What issue it could be ? I was using IPBLue Soft pphone for
> > making calls.
> > 2. As per my understanding if it is codec mismatch issue, call
> > should get disconnected say may be within early negotiation sya
> > within approx 30sec at max.
> > 3. Also as for sure IPCC is looking at G711ulaw where as call from
> > BR1 to HQ is G729, but then i observed IOS Transcoder also kicking
> > in as soon as I made call to IPCC AA which should have been doing
> > the necessary transcoding.
> > 4. Calls from BR1 Phones to HQ phones as such dont have any issue
> > and gets connected at G729 as per the config.
> >
> > Please share your expert views, like what could be the cause of this
> > issue.
> >
> > Regards,
> > Vikram Singh
>
>
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