[asterisk-bugs] [Asterisk 0017896]: chan_multicast_rtp.so MulticastRTP no audio when using Page() App

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17896 
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Reported By:                svinson
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17896
Category:                   Channels/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.8.0-beta3 
JIRA:                       SWP-2177 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-08-20 16:38 CDT
Last Modified:              2010-11-19 20:34 CST
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Summary:                    chan_multicast_rtp.so    MulticastRTP no audio when
using Page()  App
Description: 
When I use the Page() app with the MulticastRTP channel the phone answers
but i don't get any audio. when I use the Dial() command the audio works
fine. 
the Page() command works fine with the SIP channel. just not the
MulticastRTP channel. let me know what i can do to help debug this issue.
Thanks,
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 (0129009) jeenux (reporter) - 2010-11-19 20:34
 https://issues.asterisk.org/view.php?id=17896#c129009 
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I'm having the same issue and thought I could add some information on the
tests I did.

I am using Aastra 9143i and Aastra 6753i phones with the latest Asterisk
release (1.8.0).

These are the commands I tried:

exten => 8996,1,MeetMe(8996,d)
exten => 8997,1,Dial(MulticastRTP/basic/225.3.15.13:32000)
exten => 8998,1,Page(MulticastRTP/basic/225.3.15.13:32000)

MeetMe works fine as we can dial 8996 with two phones and talk to each
other. It also works using Dial command but not Page. I then tried using
the MulticastRTP channel with a Cisco 7941 phone listening on the specified
multicast address but it doesn't work either (only Dial works).

One last thing I tried was to dial the multicast address with X-Lite and
then start music on my computer. I can hear a chirp of the music about
every two seconds. So sound is partly going to the phones. I changed the
network switch and also tried on another network (tried it at home) with
the same results.

I attached the debug log (MulticastRTP-Debug.txt), a pcap file from the PC
port in "spanned" mode behind the Cisco phone
(MulticastRTP-CiscoSpanPort.pcap) and also a WAV file while playing the
music from X-Lite (MulticastRTP-Page.wav).

Let me know if you need more info,

Thanks for your time 

Issue History 
Date Modified    Username       Field                    Change               
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2010-11-19 20:34 jeenux         Note Added: 0129009                          
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