[asterisk-users] My Sip Provider lacks Sip 2.0 183 (Ringing)information

Tue May 1 12:05:22 MST 2007

>From: Knud MÃ¼ller <k.mueller at portrix.net>
>Date: Tue, 01 May 2007 15:19:17 +0200
>
>Hi all,
>
>my sip provider does'nt send a 183 Message when the opposite party rings. 
>It sends the ringing indication on the audio stream. Is there any chance 
>that the asterisk can analyze this audio stream (meta) information. I saw 
>there is a zaptel configuration entry that sound pretty close to what I 
>need 'callprogress'.

Set progressinband to yes in sip.conf.

Yuan Liu

>Has someone already solved this problem?
>
>Knud