correct me if I'm wrong, but you seem to be talking about GnuGK gatekeepers (H.323 devices). SER is a SIP device. Someone please tell me if there is a way to get SER to talk to H.323. I would be ecestatic if there were. hwang(a)gaia.ecs.csus.edu wrote:

First I'd eliminate a dialplan issue by registering both endpoints to the same gatekeeper. This will eliminate any of the obvious cross zone issues. Assuming this works then the next thing I'd try is to place an inter-zone call using the fully qualified h.323 e164 address or alias depending upon the dialplan in use. You didn't mention anything about the zones. I'm assuming the gatekeepers are responsible for different non-overlapping zones and the endpoints register correctly. Good luck, Steve hwang(a)ecs.csus.edu wrote: -- ISC Network Engineering The University of Pennsylvania 3401 Walnut Street, Suite 221A Philadelphia, PA 19104 voice: 215-573-8396 215-746-8001 fax: 215-898-9348 sip:blairs@upenn.edu