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<DIV><FONT face=Verdana size=2>We recently took a few Polycom Soundpoint IP 500
to test out in Asterisk environment. So far it has been good. Call
Hold, Transfer, DMTF etc.</FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>However, I do notice every now and then the
Polycom fails to register with Asterisk. Asterisk console outputs the
following:</FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>Feb 3 13:02:32 WARNING[278546]:
chan_sip.c:2365 __transmit_response: Unable to determine sequence number from
''<BR>Feb 3 13:02:34 NOTICE[278546]: chan_sip.c:5125 handle_request:
Failed to authenticate user "DavidLiu"
<sip:DavidLiu@192.168.0.254>;tag=9F67E426-59D92ED7<BR>Feb 3 13:02:36
NOTICE[278546]: chan_sip.c:5125 handle_request: Failed to authenticate user
"DavidLiu"
<sip:DavidLiu@192.168.0.254>;tag=BFDEF35B-1CBC4F2C<BR></FONT></DIV>
<DIV><FONT face=Verdana size=2>in sip.conf:</FONT></DIV>
<DIV><FONT face=Verdana size=2>canreinvite=yes</FONT></DIV>
<DIV><FONT face=Verdana
size=2>host=dynamic<BR>canreinvite=yes<BR>dtmfmode=rfc2833<BR>context=sip<BR>port=5060<BR></FONT></DIV>
<DIV><FONT face=Verdana size=2>Usually say after the phone failed to register
with Asterisk, I can attempt to place a call. It will fail of
course. But then I can try calling again and usually the call will go
through and it will successfully re-register itself without needing a
restart. </FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>What can this be? Surely Polycom is
re-registering every 3600 before Asterisk times it out. But Asterisk is
just refusing it.</FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>By the way, anyone
know whether Asterisk is geared towards RFC3261 or RFC2543?
I know Asterisk is not a fully SIP Proxy but lets say if a SIP PSTNGW or a SIP
phone is designed under the spec 2543 as suppose to 3261, will it work better or
the same with Asterisk?</FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>David</DIV></FONT>
<DIV><FONT face=Verdana size=2> </DIV></FONT></BODY></HTML>