<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.2604" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial size=2><SPAN class=990552422-03122002>
<DIV align=left>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2>Hello,</FONT></SPAN></SPAN></DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2></FONT></SPAN></SPAN> </DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2>I am testing a new version of IOS,
Version 12.3(11)T2, on a 7204 VXR, for interworking H.323 and SIP. I've
enabled the interworking with the "allow-connections h323 to sip" command. My
test call-flow is as follows:</FONT></SPAN></SPAN></DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2></FONT></SPAN></SPAN> </DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2>7960/CCM
4.02---->----H.323---->----7204VXR---->----SIP----->----NexTone
iServer</FONT></SPAN></SPAN></DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2></FONT></SPAN></SPAN> </DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2>When I place a test call from the IP
phone, the 7204VXR converts the H.323 call & sends out a SIP INVITE--but,
without any SDP information. The missing SDP info in the INVITE (endpoint
IP address, preferred codec, etc) seems to be present in the upstream
H.225 cs: setup messaging. </FONT></SPAN></SPAN></DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2></FONT></SPAN></SPAN> </DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2>If I use the "CSIM start xxxxxx" command
in the IOS to generate a SIP test call directly from the 7204VXR, the SDP
information is included in the INVITE.</FONT></SPAN></SPAN></DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2></FONT></SPAN></SPAN> </DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2>Has anyone else had any luck with
H.323/SIP interworking on the 72xxVXR? Is the omission of the SDP info in
the SIP INVITES a bug, or a case of mis-configuration on my part?
</FONT></SPAN></SPAN></DIV>
<DIV align=left><SPAN class=990552422-03122002><SPAN
class=951141220-09022005><FONT size=2></FONT></SPAN></SPAN><SPAN
class=990552422-03122002><SPAN class=951141220-09022005><FONT
size=2></FONT><BR><FONT size=2>Thank you,</FONT></DIV>
<DIV align=left><FONT size=2></FONT> </DIV>
<DIV align=left></SPAN></SPAN><SPAN class=951141220-09022005><FONT
size=2>SK</FONT></SPAN></DIV></DIV><A
href="http://www.masergy.com/"></A></SPAN></DIV></FONT></BODY></HTML>