[SIPForum-techwg] Can we please have at least one real codec
ron.even.tlv at gmail.com
Fri Feb 13 00:51:49 EST 2009
Like Dan I think that one advantage of IP phones is that they can use higher
quality codecs, 7 or 14 Khz. If you leave one codec as Mandatory the
question will be what about the media line transparency. Is the decision
about which codecs are supported is left only to the SIP PBX / SP to decide
or can SIP phone used decide which one they would like to have.
From: techwg-bounces at sipforum.org [mailto:techwg-bounces at sipforum.org] On
Behalf Of Cullen Jennings
Sent: Thursday, February 12, 2009 11:06 PM
To: Jack Burton
Subject: Re: [SIPForum-techwg] Can we please have at least one real codec
Great - let the customer choose
On Feb 12, 2009, at 11:05 AM, Jack Burton wrote:
> Bandwidth per call is getting cheaper all the time.
> I think mandating a codec that makes VOIP calls sound inferior to
> TDM calls will bring at least as much ridicule as one using more
> If we mandate any codec at all, we should only require G.711. G.
> 711 is the only codec that is supported in virtually every endpoint/
> gateway and is royalty-free.
> >>> Cullen Jennings <fluffy at cisco.com> 2/12/2009 01:28 >>>
> Bandwidth for call is expensive - we want a T1 VoIP line to support
> more calls, not less calls that a T1 PRI line. I think we have to
> require codec that uses less bandwidth than 711 or the whole thing
> will just be made fun of by the marketing departments of PSTN
> providers. I'm not saying people have to use this codec, but I think
> it has to be implemented on both sides.
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