Hi Rommel,
We are using VocalTec Gateway and Gatekeeper also. VocalTec tell us that if we buy 3rd party interoperability license for their gateway and gatekeeper, our system can work well with other carrier using Cisco system. But I need to know how Cisco gateway can pass calls to VocalTec gateway and vice versa. If you have any documents, please send me at n_v_khoa@cardvn.net