[SIPForum-discussion] Inband DTMF and compressed codecs

[Eric Burger]

More specifically, most compressed codecs cannot transport DTMF  
without so much distortion the signaling gets lost.

See RFC 4733.

On Jul 21, 2009, at 7:41 PM, Jing Jiang wrote:

> It is not a good idea to send DTMF using lowbit rate codec.
>
> Jing
> From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org 
> ] On Behalf Of Raghul Prasanna
> Sent: Tuesday, July 21, 2009 4:01 AM
> To: discussion at sipforum.org
> Subject: [SIPForum-discussion] Inband DTMF and compressed codecs
>
> Hi All,
>
> Is it good idea to send DTMF inband when using codecs like G.723?  
> Please advice.
>
> Thanks,
> Raghul
>
>
>
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