09-26-2011 12:20 AM
i have multiple endpoint on the LAN when calling another on the internet, the call always disconnect after 20 to 30 min.
(the call connects normally with audio/video)
i tried to decrease the TCP keep alive message on the HDX to 900 sec (15 min). but the same it disconnected after 32 min max.
what could be the problem? what i need to instrcut the Network administrators to check?
09-27-2011 03:07 AM
point to point calls disconnetec after time between 20 to 30 min. max time it could stay in the call is 32 min.
the call disconnect even i'm calling on 256K. the custmer had 20Mbps so i don't think it is a bandwidth problem.
09-29-2011 08:48 AM
Have the firewall administrator check the TCP session timeout. In H.323 call setup happens on TCP port 1720. When the call connects this port stays open and idle. Most firewall will see this as an issue and close the session.