You may want to check ITU-T Rec. H.225 with respect to the "RAI" (ResourcesAvailableIndicate) RAS message. Per a copy of the document, 'The Resource Availability Indication (RAI) is a notification from a gateway to its gatekeeper of its current call capacity for each H-series protocol and data rate for that protocol'. While my hardcopy (admittedly likely to be rather out-of-date) of the Rec. looks like the major required information defined to be conveyed is a simple "almostOutOfResources" field set accordingly to true/false, there is also the companion "nonStandard Data" field which could be used for a greater level of detail [albeit in a proprietary manner]. No doubt there has been further work & evolution in this area, but that could be a good place to start. -----Original Message----- From: Shubha Ramani [mailto:shubha@XYBRIDGE.COM] Sent: Monday, April 24, 2000 12:51 PM To: ITU-SG16@MAILBAG.INTEL.COM Subject: resources available on a h323 gateway ? Many implementors are relying upon number of ports on a gateway to charge for licensing (one license per port). Does H323 support a message (from the H.323 gateway to the Gatekeeper) which advertises number of ports/resources available on the gateway , say upon gateway reboot or restart ? By gateway port, I mean the termination of one circuit (one channel on a T1, for instance). MGCP has a RSIP (Restart In Progress) message which solves this dilemma. Any help would be appreciated. Shubha Shubha D. Ramani < <mailto:shubha@xybridge.com> mailto:shubha@xybridge.com> or < <mailto:shubharamani@yahoo.com> mailto:shubharamani@yahoo.com> VOIP Protocols & Compliance Testing - XYBRIDGE Technologies 3400 Waterview Pkwy Ste# 107 Richardson, Texas 75080 214-570-8600 x1028, x2056(lab) < <http://www.xybridge.com/> http://www.xybridge.com/> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For help on this mail list, send "HELP ITU-SG16" in a message to listserv@mailbag.intel.com