[asterisk-users] Early audio SIP sequence order question

[Kevin P. Fleming]

On 02/11/2011 02:11 AM, Benoit Panizzon wrote:
> Hi Kevin
>
> I just found something interresting:
>
> http://www.faqs.org/rfc/rfc3960.txt
>
>        1. Unless a 180 (Ringing) response is received, never generate
>           local ringing.
>
>        2. If a 180 (Ringing) has been received but there are no incoming
>           media packets, generate local ringing.
>
>        3. If a 180 (Ringing) has been received and there are incoming
>           media packets, play them and do not generate local ringing.
>
> So, yes, this most probably is an asterisk bug, if it's not a config issue I
> haven't figured out yet. Shall I submit a bug report?

It is possible that the 'progressinband' configuration option is related 
to this, but I'm not sure that it is (since I believe it only reacts to 
183 messages, not 180). Given that, it would be best to open a bug 
report to get it in the queue for someone to look at.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kfleming at digium.com
Check us out at www.digium.com & www.asterisk.org