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<DIV><FONT face=Arial size=2>I got a very strange problem with call-hold
function.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>For calls that come in from PSTN and route to a SIP
extension. If I put the call on hold, I cannot unhold the call
after. The caller would be left with hold music forever. A warning
message would be shown on the console usually a few seconds after putting the
call on hold:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>WARNING[17428]: chan_sip.c:686 retrans_pkt: Maximum
retries exceeded on call <A
href="mailto:0457bd4153a66af6241b2ce5217e823@192.168.0.3">0457bd4153a66af6241b2ce5217e823@192.168.0.3</A>
for seqno 2079 (non-critical Response).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The same unhold function works fine for calls
between SIP extensions.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have searched through wiki but could not find the
answer. If somebody can shred some light on the problem, it will be very
much appreciated.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm running the Asterisk stable version at Dec 21,
2004.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks ahead.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Joseph Shi</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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