atcomsystems.ca/forum Forums Other TDM Phone Systems Sprint - Tadiran Telephones & Systems SIP Terminal Grandstream HT-502 problem on IPXoffice

I have an update,
I tested with X-Lite and I call out to any PSTN line but still not able to call internally to T207M (MGCP).
But I am surprise, I was able to called any internal T207M by calling my office PSTN line and go to internal extension which is T207M. So it works by calling from outside and goes to extension, but doesn't works if I call directly internal extension (voice only hear on one site).

Thanks
dendiko