[asterisk-users] Asterisk Sends 180-RINGING to UA even withprogressinband=yes

[Douglas Garstang]

Andrew,
 
I don't think it's a Polycom issue. We took Asterisk out of the picture and had our Polycom phones communicate directly with an Audiocodes PSTN gateway. Unlike Asterisk, the audiocodes do not send 180 Ringing before sending 183 Session Progress, and the polycom's play the correct tones in this case.
 
We WANT Asterisk to send progress tones in band. In our case it IS needed. What's the SIP response for a reorder then if we don't need in band progress tones? There is none. In a situation where the PSTN end sends back a reorder, or some other unusual tone, all the UA ends up hearing is the closest SIP approximation, which is ringing, which is not correct.
 
I have tried to explain my issues in detail in this list in the past, and I have invariably met with responses like 'I don't understand' or 'why would you want to do that?'. I get much better understanding of my issues, and therefore better replies, when I break the problem down and only explain the relevant portions.
 
I really don't appreciate your tone.
 
Douglas.
 
 
 -----Original Message-----
From: Andrew Joakimsen [mailto:joakimsen at gmail.com]
Sent: Monday, December 11, 2006 4:40 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Asterisk Sends 180-RINGING to UA even withprogressinband=yes



When we send 183, that means 'inband progress' is available. That does _not_ necessarily mean that it is ringing, it could be any sort of progress tone, or even audio from an IVR. If your ATA does not stop its own ringing generator and start forwarding the audio, it is broken.

It is my understanding that Polycom's SIP implemenation does not currectly handle these responses. See: http://bugs.digium.com/view.php?id=3129

In the future it would help that instead of nitpicking some little low level technical detail you describe what your actual problem is, you would get more input that way. progessinband=yes means that the call progress WILL BE SEND INBAND, which in 99% of cases is not needed, and does not make sense. You are also wasting additinal resources because asterisk must generate progress tones too. 


On 12/11/06, Douglas Garstang < dgarstang at oneeighty.com> wrote: 

I have progressinband=yes in sip.conf, but Asterisk sends a 180-Ringing to my polycom phones and then it also sends 183-Session Progress. That doesn't seem to make sense. Shouldn't Asterisk NOT send 180-Ringing if progressinband=yes ? 

Doug.
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --

asterisk-users mailing list
To UNSUBSCRIBE or update options visit: 
   http://lists.digium.com/mailman/listinfo/asterisk-users



-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20061211/3cb74f54/attachment.htm