Summary:	ASTERISK-17524: No ringback when 2 or more destinations in dial string
Reporter:	Bruce McAlister (asgaroth)	Labels:
Date Opened:	2011-03-08 13:13:10.000-0600	Date Closed:	2011-06-07 14:05:29
Priority:	Minor	Regression?	No
Status:	Closed/Complete	Components:	Core/General
Versions:	1.8.3	Frequency of Occurrence
Related Issues:	is related to ASTERISK-22201 Despite not bridging early media in a parallel Dial, we forward 183 Session Progress back to the caller
Environment:		Attachments:	( 0) debug-output.txt
Description:	If I have 2 or more destinations configured as part of the dial string, I hear no ringback tone from the media in 183 Session Progress. If I take the same two parameters and dial them individually then I hear the ring tones passed back. I have tried with all combinations of prematuremedia=yes/no and progressinband=yes/no/never on the provider trunks, in addition to having the Ringing() application preceed the dial (when I preceed the Ringing() app, then I get 1 ring before the 183 Session Progress stops the ringing - early media I presume) It appears that there may be an issue with bridging 2 or more destinations. This issue appears to be identical to issue 0010032 which was suspended due to lack of feedback. ****** STEPS TO REPRODUCE ****** In this instance I am dialing 2 mobile numbers out via one of our providers, for example: Dial(SIP/gateway/mobile1&SIP/gateway/mobile2) ****** ADDITIONAL INFORMATION ****** I have attached the console output of debug=9 with a call out to two mobile numbers.
Comments:	By: David Woolley (davidw) 2011-03-08 13:48:34.000-0600 That behaviour sounds reasonable.  Maybe it should be overriding the Progress call and sending 180 Ringing again.  The problem, as I see it, is that giving ringback after 183 for multiple destinations could require it to mix ringbacks from all sources, which might well sound horrible! By: Bruce McAlister (asgaroth) 2011-03-08 13:59:21.000-0600 Is this the desired behaviour then? I guess it does make sense that mixing the 2 early media streams together for ringback would sound horrid :/ If so, the only way to force a ring on these types of dial strings (2 or more destinations) is with the "r" parameter to the Dial application? By: Leif Madsen (lmadsen) 2011-03-08 14:36:19.000-0600 I think this is the type of situation where the 'r' flag to Dial() is appropriate.