[SIPForum-discussion] Transcoding devices in VOIP

[Rohan Almeida]

Hi Amit,

if you are going for transcoding you need to know the exact codecs
that will be supported/not-supported at both the ends. This is
required to determine when transcoding is required.

it is not a good idea to force transcoding. since your transcoding
module is seperate from the SBC , the SBC will have to be configured
to negotiate on a codec that is not a part of the offer/answer from
one of the sides.

if transcoding is done on the SBC itself , the SBC can determine when
the transcoding is required.

in your suggested setup transcoding will have to be statically
configured for some codecs.

answering few of ur questions

1.How msuch possible and correct to do trasncoding in VOIP carriere
level platforms?
-> not recommended. but sometimes will be required if no common codec
is supported.

4.If i wish to do trasncoding on seperate BOX (out of my SBC) is the
same call flow of media packets? or signaling packets to do
transcoding?

A Party-------->SBC--------------->Tarnscoder
BOX------------>SBC(Same)--------------->B Part or far end?
->if the transcoder box is sip aware,yes

6. based on diffrent codec types and annex CPU usage and bandwidth
consumption is diffrent while transcondng?
-> yes definitely


regards,
Rohan Almeida

On 7/13/11, David Wells <dwells at ctgsolutions.com> wrote:
> As part of the Sansay vsxi SBC family they make a media server that offers
> the option of transcoding.
>
> Dave
> David S. Wells
> Direct : 703-579-0133
> Cell: 703-943-6229
> E-mail: dwells at ctgsolutions.com
>
> -----Original Message-----
> From: ydweik at gmail.com
> Sender: discussion-bounces at sipforum.org
> Date: Wed, 13 Jul 2011 15:09:57
> To: Aniella Juverdeanu<Aniella.Juverdeanu at telus.com>;
> <discussion-bounces at sipforum.org>; amit salunkhe<amitsalunkhe21 at gmail.com>;
> discussion at sipforum.org<discussion at sipforum.org>
> Reply-To: ydweik at gmail.com
> Subject: Re: [SIPForum-discussion] Transcoding devices in VOIP
>
> Hi,
> Sonus has a new box called NBS5200 that do routing, transcoding while
> keeping the performance good
> Thanks
> Sent from my BlackBerry® wireless device from STC
>
> -----Original Message-----
> From: Aniella Juverdeanu <Aniella.Juverdeanu at telus.com>
> Sender: discussion-bounces at sipforum.org
> Date: Mon, 11 Jul 2011 10:06:43
> To: amit salunkhe<amitsalunkhe21 at gmail.com>;
> discussion at sipforum.org<discussion at sipforum.org>
> Subject: Re: [SIPForum-discussion] Transcoding devices in VOIP
>
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