we have a properly working IPT solution working at head ofice presently. we got two VT cams so i installed to demo. now video is fine internally but the issue is when the user trys to call out. the two associated phones that has the VT cannot make outgoing calls. message states that the call cannot be completed. if i disable video capabilites on the phone everything is fine.
i enabled Retry video and audio both on the phones itself as well as the Voice gateway.
the Video bandwidth was left as default, 384. i know (or at least i think i know) logically that when the user is trying to make the call, it tries to do a video call, and when there is not enough bandwitdh the call fails. i assumed that since this was the case, retry video as audio parameter was to address this scenario.
is there anything that was to be set in the service parameter or elsewhere?
Note: this is a firewall centric design.
any ideas would be greatly appreicated. its not a network down emergency by any means but if we later do decide to do video id obvioiusly have the heads up.