Hello, I wanted to poll the H323 community regarding the use of TPKT header with H225 message while using AnnexE transport capability. AnnexE makes the UDP a reliable signaling channel. H.323 spec talks of using TPKT header with reliable signaling channel. What is your interpretation of H323/AnnexE regarding the TPKT header? Does the TPKT header have a function in this case? thanks, -- vivek ============================================================= Vivek Kakkar Cisco Systems, Inc. vkakkar@cisco.com Research Triangle Park, NC 919-392-6975:o USA