It has been pointed out that I forgot to give details about the interworking mailing list. Here they are: I've set a mailing list for those interested in the discussion of SIP/H.323 interworking. Discussion is *not* limited to the draft written by Kundan Singh and myself. The list is not moderated, but you have to be a member to post (to minimize spam). Discussions about the merits of signaling protocols are considered off-topic. An archive of the discussion is available at the URL below. You can subscribe at http://www.egroups.com/group/sip-h323/ by clicking on "group info" or by sending email to sip-h323-subscribe@egroups.com -- Henning Schulzrinne http://www.cs.columbia.edu/~hgs