Can someone help?
I configured SX20 behind firewall with NAT. I can call in, but cannot establish outgoing call.
Default Call Protocol
The default call protocol is set to H323, but system is not registered on that protocol. The system may not be able to make any calls. Please eitherchange the default call protocol, verify that the protocol is enabled, or verify the H323 configuration..
My H323 NAT is on, CallSetup Mode is Direct, PortAllocation is Dynamic.