Hi, to be on the safe side, I would add a few ports to the range. After a calls is finished, it can sometimes take up to a few minutes for all sockets to become available again (depending on your OS and how much tuning you did). As a rule of thumb I would add 20%. Regards, Jan Simon Horne wrote: > Andrew > > A standard Video call requires > 4 RTP ports 1 RTP audio 1 RTP video 1 RTCP audio 1 RTCP video > 1 Q931 port (Call Signalling) > and optionally 1 H245 port if not H245 Tunneling > No T120 ports > > So for 10 calls with H245 tunneling allow > 40 RTP ports > 10 Q931 ports > > Simon > -----Original Message----- > From: openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx > [mailto:openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx]On Behalf Of Andrew > Struiksma > Sent: Saturday, May 10, 2008 1:07 AM > To: GNU Gatekeeper Users > Subject: Number of ports required for video call > > > I'm testing GnuGK behind a firewall and am wondering how many ports are > really required for H.323 video calls. The sample nat.ini lists these port > ranges: > > Q931PortRange=30000-30999 > H245PortRange=31000-31999 > T120PortRange=50000-59999 > RTPPortRange=50000-59999 > > However the GnuGK Manual lists these port ranges: > > Q931PortRange=20000-20999 > H245PortRange=30000-30999 > T120PortRange=40000-40999 > RTPPortRange=50000-59999 > > I would rather not leave thousands of ports open if it is unnecessary. I > will be dealing with schools which will be using fewer than 10 (probably > less than 5) video endpoints. Could someone please give me an idea of how > many ports in each range are actually required per video call? > > Thank you! > > > Andrew Struiksma > K20 Network Support Specialist - NW Regional Video ITU > > > > Andrew Struiksma > K20 Network Support Specialist - NW Regional Video ITU > Northwest Educational Service District > 1601 R Avenue > Anacortes, WA 98221 > (360) 299-4063 (Office) > (360) 333-0776 (Cell) > astruiksma@xxxxxxxxx > > www.nwesd.org > Together We Can ... -- Jan Willamowius, jan@xxxxxxxxxxxxxx, http://www.gnugk.org/ ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________________ 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/