[asterisk-users] Jitterbuffer issues
Volker Sauer
volker at volker-sauer.de
Sat Nov 3 07:59:49 CDT 2007
Hi Tony,
please do not send HTML-only messages to mailing lists. There are a lot
of people using mail programs that do not display html. You're html
messages are annoying and that's the reason why you get only a few
answers.
Volker
On Fr, 02 Nov 2007, Tony Plack <Tony at plack.net> wrote:
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> </head><BODY BGCOLOR="#CED1E1" ><div><SPAN style="font-family:'Tahoma';font-size:10pt;">When initiating a call from a SIP phone to another SIP phone through Asterisk 1.4 (latest SVN), I get the following:</SPAN></div>
> <div> </div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292] abstract_jb.c: Failed to put first frame in the jitterbuffer on channel 'SIP/5001-08266108'</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292] abstract_jb.c: Failed to put first frame in the jitterbuffer on channel 'SIP/5000-08299448'</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292] chan_iax2.c: Resyncing the jb. last_delay 0, this delay -309029745, threshold 1000, new offset 309029745</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292] chan_iax2.c: Resyncing the jb. last_delay 0, this delay -374875680, threshold 1000, new offset 374875680</SPAN></div>
> <div> </div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">First is a question about why, when the channel is initially created, does the jitterbuffer fail to put in the first frame.  Here is the output from the console that shows more detail:</SPAN></div>
> <div> </div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">    -- Called 5000</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">    -- SIP/5000-08299448 is ringing</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;"> Extension Changed 5000 new state InUse for Notify User 5002</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">    -- SIP/5000-08299448 answered SIP/5001-08266108</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292]: abstract_jb.c:469 create_jb: Failed to put first frame in the jitterbuffer on channel 'SIP/5001-08266108'</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">    -- adaptive jitterbuffer created on channel SIP/5001-08266108</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292]: abstract_jb.c:469 create_jb: Failed to put first frame in the jitterbuffer on channel 'SIP/5000-08299448'</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">    -- adaptive jitterbuffer created on channel SIP/5000-08299448</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292]: chan_iax2.c:794 jb_warning_output: Resyncing the jb. last_delay 0, this delay -309029745, threshold 1000, new offset 309029745</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">[Nov  2 10:08:55] WARNING[7292]: chan_iax2.c:794 jb_warning_output: Resyncing the jb. last_delay 0, this delay -374875680, threshold 1000, new offset 374875680</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;"> Extension Changed 5001 new state Idle for Notify User 5004</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;"> Extension Changed 5001 new state Idle for Notify User 5002</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;"> Extension Changed 5001 new state Idle for Notify User 5000</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">    -- adaptive jitterbuffer destroyed on channel SIP/5000-08299448</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">  == Spawn extension (macro-stdexten, s, 8) exited non-zero on 'SIP/5001-08266108' in macro 'stdexten'</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">  == Spawn extension (macro-stdexten, s, 8) exited non-zero on 'SIP/5001-08266108'</SPAN></div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">    -- adaptive jitterbuffer destroyed on channel SIP/5001-08266108</SPAN></div>
> <div> </div>
> <div> </div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">As can be seen, the jitterbuffer is created after the first failure.</SPAN></div>
> <div> </div>
> <div><SPAN style="font-family:'Courier New';font-size:9pt;">Second question, why is chan_iax2 involved in a SIP to SIP connection?  Is chan_iax2 required for the new jitterbuffer?</SPAN></div>
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