[cisco-voip] conference g729

[Peter Slow]

A technicality...

On Thu, Apr 30, 2009 at 1:04 PM, Peter Slow <peter.slow at gmail.com> wrote:
> Roberto,
>   Yes, you _must_ use a DSPFarm of some sort to support a g.729
> conference of any type with CUCM. the Software CFB in CUCM will do a

*With the exception of things like barged calls that use a newer model
phone's built in bridge.

...But that doesnt really matter for you.

-Peter

> mixed-mode conference of G.711a-law, u-law, and/or the cisco
> proprietary wideband codec. these are the only codecs it supports. A
> DSPFarm configured to support g.729 and 711 will, in general support a
> 711/729 mixed mode, or g.711 or 729 only conference.
>
> How many participants do you plan on having (maximimum) in these calls
> at any one time?
>
> -Peter
>
> On Thu, Apr 30, 2009 at 11:44 AM, Roby <granata77 at libero.it> wrote:
>> Actually we have only g711 and we don't have any DSP hardware/software for conferencing.
>>
>> If we use g729 in place of g711, what happens? However, I must use DSP?
>>
>> I would like understand what should I do "economically" to use the conference: if I should use g729 with g711 (and then use a DSP), or I can use only g729 without DSP?
>>
>> Thanks.
>>
>>
>>
>>
>> ---------- Initial Header -----------
>>
>> >From      : "Scott Voll" svoll.voip at gmail.com
>> To          : "Roby" granata77 at libero.it
>> Cc          : "cisco-voip" cisco-voip at puck.nether.net
>> Date      : Thu, 30 Apr 2009 08:18:54 -0700
>> Subject : Re: [cisco-voip] conference g729
>>
>>
>>
>>
>>
>>
>>
>>> the question become are you using the CM server (software) for Conferencing?
>>> (g711 only)
>>>
>>> if yes, then you will need DSP's for Transcoding because the Software will
>>> not do G729 weather some or all phones are in a G729 region.
>>>
>>> if no (you use HW / DSPs) then it doesn't matter if its G711 or G729 or
>>> both.
>>>
>>> help?
>>>
>>> Scott
>>>
>>> On Thu, Apr 30, 2009 at 8:13 AM, Roby <granata77 at libero.it> wrote:
>>>
>>> > I don't undestand, sorry...
>>> >
>>> > My question is this: with the g711 (throughout the all network) I have no
>>> > problems of conference; if we use a pool of phone with the g729 and another
>>> > pool with the g711, we need a DSP; but if we use only the g729 (throughout
>>> > the all network) what happens? We need to use in any case a DSP farm? Or the
>>> > conference works equally without configure nothing (hardware/software)?
>>> > I hope that I explained better now.
>>> >
>>> > Thanks.
>>> >
>>> >
>>> > ---------- Initial Header -----------
>>> >
>>> > From      : "Scott Voll" svoll.voip at gmail.com
>>> > To          : "Roby" granata77 at libero.it
>>> > Cc          : "cisco-voip" cisco-voip at puck.nether.net
>>> > Date      : Thu, 30 Apr 2009 07:58:24 -0700
>>> > Subject : Re: [cisco-voip] conference g729
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > > I think it depends on what your doing.
>>> > >
>>> > > if your using the software conference bridge based on CM servers it only
>>> > > does G711 at which point you need DSP for Transcoding 729 to 711.
>>> > >
>>> > > or the other option is to create a DSP farm for hardware conferencing
>>> > that
>>> > > will do both 729 or 711 or both.  then you don't need the transcoding as
>>> > the
>>> > > hw confering DSP's do the transcoding.  but if you run applications (such
>>> > as
>>> > > IPCCx) that only run g711 then you will still need DSP's for transcoding.
>>> > >
>>> > > Hope that answers your question.
>>> > >
>>> > > Scott
>>> > >
>>> > > On Thu, Apr 30, 2009 at 7:33 AM, Roby <granata77 at libero.it> wrote:
>>> > >
>>> > > > Hi.
>>> > > > I have a cluster of Call Manager with phone and region configured on
>>> > g711.
>>> > > > I know that the conference it only works with the codec g711.
>>> > > > If we have a pool of phone in g729, for the conference, I nedd to
>>> > create a
>>> > > > DSP farm.
>>> > > >
>>> > > > But if we have all the region in g729, for the conference, I have
>>> > always
>>> > > > need to create a DSP farm? Or is there a cheaper solution?
>>> > > >
>>> > > >
>>> > > > Bye.
>>> > > > Roberto
>>> > > >
>>> > > > _______________________________________________
>>> > > > cisco-voip mailing list
>>> > > > cisco-voip at puck.nether.net
>>> > > > https://puck.nether.net/mailman/listinfo/cisco-voip
>>> > > >
>>> > >
>>> >
>>> >
>>>
>>
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