Maybe my previous mail was a little subtil. Look in the h245 Terminalcapabilityset. In this frame you will find a h225 CS part. This h323 message_body facility message reads facility(UUIE)" for version 4 and reads empty for a version 2 or 3. Whenever this condition exists the call will be terminated at the receiving endpoint after about 10 up to 30 seconds. I looked it up in the h323 v4 protocol description of the ITU manual. Every endpoint in a h323 circus that has this mismatch causes the mentioned problem. I created a temp fix by rewriting the message body part during call setup to the v4 standard when dealing with v4 endpoints in a softswitch and not in the gnugk. I simply can't write C++ I only analyse dumps ! Greetings, Tjapko. -----Original Message----- From: iTS Consult@ncy [mailto:itsc99@cantv.net] Sent: Miércoles, 18 de Febrero de 2004 08:46 p.m. To: Subject: RE: Issue with H323 version 4 gateways I posted this a while ago. It might be releated? Hi, I recently ran into some minor issue that I like to know if somebody else ran into this issue. I use merely hardware 1 port, 4 port and 8 port VoIP gateways that run on version 2 of h323 with gnugks version 2.0.7. They run fine. recently I added some version 4 - h323 endpoints that caused the error that a call from 1 - v2 - h323 to a v4 - h323 endpoint is being successfull established but disconnect after 10 seconds up to 30 seconds after call establishment. This is caused by a new protocol description in the h323 ITU manual for version 4. Trace analysis showed me this: In the h225 capability Set part in the h323_message_body the messagetype is reading "empty" for version 2 and "facility(UUIE)" for version 4. Of course the error only occurs if you use tunneling between the (inzone) devices. This mismatch will cause your endpoints to behave like mentioned because a release complete will be generated at the recieving endpoint. Also some terminators can't deal with this issue and disconnect your call setup after 10 to 30 sec's for no specific reason. I am not sure if this problem is being dealt with in the latest version of gnugk since I dont use the latest 2.0.7. "released" release. Any experiences would be welcome. Tjapko. -----Original Message----- From: openh323gk-users-admin@lists.sourceforge.net [mailto:openh323gk-users-admin@lists.sourceforge.net]On Behalf Of Zygmuntowicz Michal Sent: Miércoles, 18 de Febrero de 2004 07:50 p.m. To: openh323gk-users@lists.sourceforge.net Subject: Re: Issue with H323 version 4 gateways Maybe there is some problem with decoding v4 messages at the gk? What does the log file tell you? > Ok, here\'s the scenario that I\'m experiencing. I have a carrier that >using Cisco 5400 gateways, which are enabled with H323 version 4 on >them. >By default, V.4 is based in H245 tunneling connections, which in turn >causes some serious inter-op issues with other gateways. > > The main problem that I could see is the following: >1. A call is originated from a V.3 gateway >2. Call traverses gk correctly. >3. Setup messages are ok with remote v.4 gw >4. Call disconnects after 1 second > > Any thoughts on the issue ? > >__________________________________________________________________ >Nir Simionovich >IT Manager >m-Wise Ltd. >e-Mail: nirs@m-wise.com > cell: +972-54-482826 ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ List: Openh323gk-users@lists.sourceforge.net Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Homepage: http://www.gnugk.org/ --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.590 / Virus Database: 373 - Release Date: 16/02/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.590 / Virus Database: 373 - Release Date: 16/02/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.590 / Virus Database: 373 - Release Date: 16/02/2004 ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id56&alloc_id438&opÌk _______________________________________________ List: Openh323gk-users@lists.sourceforge.net Archive: http://sourceforge.net/mailarchive/forum.php?forum_id…49 Homepage: http://www.gnugk.org/
