Simon, thanks for your answer. I know that NAT'ed endpoints need some special support from GK to work correctly. But we do not use NAT. Our VoIP network uses fictive ip addresses from the range 172.16.0.0/12 and there is normal routing set up between them (no NAT). We use GNU GK in signaling proxy mode (H.225.0 + H.245). Is it possible that there is not enough system resources for our load? How can I check this? -----Original Message----- From: openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx [mailto:openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Simon Horne Sent: Thursday, October 18, 2007 11:20 AM To: GNU Gatekeeper Users Subject: Re: Error messages Denis IP address 172.22.25.8 is a NAT IP address. The reason the call is failing is because the device you are trying to call is behind a NAT box. You cannot contact a phone behind a NAT box unless you have either enabled Port forwarding in the NAT box or have a NAT aware device. To work you must add this to the gatekeeper.ini [RoutedMode] SupportNatedEndPoints=1 [Proxy] ProxyForNAT=1 and either port forward port 1720 in the NAT device or use a NAT-AWARE softphone like PacPhone (www.pacphone.com) Simon -----Original Message----- From: openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx [mailto:openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx]On Behalf Of Denis Kochmashev "Enforta" Sent: Thursday, 18 October 2007 12:52 PM To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Subject: Error messages Hello, Can anobody explain me the meaning of this messaage? 2007/10/18 10:02:16.726 1 ProxyChannel.cxx(2987) Q931d Could not open/connect Q.931 socket at 172.22.25.8:0 - error 9/110: Connection timed out The most important part for me is "error 9/110". Please tell me if I can it's (and other error messages) description in the documentation? Thanks. P.S. Gatekeeper(GNU) Version(2.2.6) Ext(pthreads=1,radius=1,mysql=1,pgsql=1,firebird=0,large_fdset=0,crypto/ssl= 1) Build(May 1 2007, 15:22:23) Sys(Linux i686 2.6.9-5.ELsmp) ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk-users Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/ ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk-users Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/