Subject: Re: RFC 2833 on Tones

From: Dan Wing <[email-masked]>
Date: Wed, 31 May 2000 23:55:13 -0700 (PDT)

On Wed, 31 May 2000 11:14 -0700, Rex Coldren wrote:

> RFC 2833 does not address the possibility of replacing normal RTP
> payloads with RFC 2833 payloads.  This would be a useful concept in
> bandwidth limited networks.  What do you think?

That is how AAL2 (ITU I.366.2) does it.  

But it only works if you know, a priori, that the peer understands RFC2833
events.  In fact, I suspect the inability to know that is why RFC2833
recommends sending both the tones and RFC2833 events -- to allow for peers
that don't understand or don't prefer RFC2833 events.

-Dan Wing