<html><head><meta name="Generator" content="PSI HTML/CSS Generator"/>
<style type="text/css"><!--
body{font-family:'Tahoma';font-size:10pt;font-color:'#000000';}
LI{display:list-item;margin:0.00in;}
p{display:block;margin:0.00in;}
body{}
--></style>
</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>
</body></html>