Topic: H323 problems on SME 5.1.2

[AusMounty]

I have a small protocol error I am trying to resolve... the SME 5.1.2 allowing the basic text communication from an XP system hooking through my e-smith box... when friend tries to enable voice mode the system will not allow it... could this be an issue with the data pump or simply a port setting in e-smith?

All honest answers would be appreciated

[David McCoy]

H323 protocols were not intended to be used thru a firewall.  The protocols ports are random, using a different port for video, audio, etc...
This makes a firewall rule set almost impossible.  The protocol also binds the network IP address of the workstation to the audio/video stream.  If your using priviate IP addresses, the person your trying to contact will refuse the connection.  H323 can be used with a firewall but it requires a gatekeeper proxy.  Do a search on Google for OpenH323 for more information.