The prerequisites for CMR Hybrid to work with a WebEx site using TSP audio are:
The WebEx attendees can successfully dial into the audio conference.
The dial-in attendee can enter his/her AttendeeID, thus “merging” the “Call In User 1” with his entry on the WebEx Participant List.
Active speaker indications work, and video switches to the active speaker.
This arrangement / verification between WebEx and the TSP partner includes:
Determining and testing the DTMF script that is needed for the TelePresence bridge to successfully dial into the audio conferences of that specific TSP partner under various conditions.
Determining if the DTMF script should be dialing in as the host, or as an attendee (this latter method involves the use of a signal from WebEx to the TSP partner indicating that the audio conference should be opened even without the host being present).
The customer TelePresence bridge is able to establish an outbound PSTN phone call and, once answered, able to enter DTMF over the call.
The WebEx host account(s) that will be used for CMR Hybrid meetings already function properly per the requirements in the first prerequisite (above), and is configured with a toll phone number in the TSP Audio Account configuration of their WebEx host account.