[asterisk-bugs] [Asterisk 0014108]: Asterisk not sending out RTP packets

[Asterisk Bug Tracker]

The following issue has been UPDATED. 
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http://bugs.digium.com/view.php?id=14108 
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Reported By:                malaiwah
Assigned To:                file
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Project:                    Asterisk
Issue ID:                   14108
Category:                   Channels/chan_sip/Interoperability
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     closed
Asterisk Version:           1.4.17 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
Resolution:                 no change required
Fixed in Version:           
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Date Submitted:             2008-12-18 11:43 CST
Last Modified:              2008-12-18 13:08 CST
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Summary:                    Asterisk not sending out RTP packets
Description: 
I have Kamailio with MediaProxy in front of Asterisk running, asterisk does
not need/nor have to deal with any nat issues. All it is seeing are public
ip addresses (somewhat, because this test environnement runs on amazon
ec2).

I'm debugging SIP packets and everything looks fine though, but Asterisk
is not sending any RTP packet to my RTP proxy. It is receiving packets fine
though. What is stopping Asterisk to send packets to my RTP proxy? Nat=no
in my sip.conf

In additionnal informations, you will find the asterisk console with sip
debug and rtcp debug. Looking at the SIP headers I would interpret that
Asterisk would have to connect to the RTP proxy right away and not wait
until a packet comes in.

* Our Sender:
 SSRC:          824794298
 Sent packets:  0
 Lost packets:  0
 Jitter:        0
 SR-count:      0
 RTT:           0.000000
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---------------------------------------------------------------------- 
 (0096652) file (administrator) - 2008-12-18 13:08
 http://bugs.digium.com/view.php?id=14108#c96652 
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This is an issue with the timing source being used with your system that
ztdummy is using. You can overcome this issue by unloading ztdummy from the
system. There is an issue, 13930, that talks about it not working on some
systems. I would suggest you follow it there. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2008-12-18 13:08 file           Note Added: 0096652                          
2008-12-18 13:08 file           Status                   feedback => resolved
2008-12-18 13:08 file           Resolution               open => no change
required
2008-12-18 13:08 file           Assigned To               => file            
2008-12-18 13:08 file           Status                   resolved => closed  
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