[SIPForum-techwg] IP PBX section 15

[Elwell, John]

Francois

You wrote: 
> 15.1
> 
> There needs to be an explanation that receiving 183 without
> and SDP should trigger Ringing tone (or in fact, any 18X 
> without SDP).
> 
First, 180 should lead to ringback tone, but I don't think any other 18x
should. Secondly, this should be independent of whether there is SDP
present. It should, of course, be dependent on whether RTP/SRTP is being
received.

John