asterisk users - Dec 2006 - Asterisk Sends 180-RINGING to UA even with progressinband=yes

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.

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@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.
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