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Multimedia Call Handling
Issue 5 January 1998
11-3555-230-024
Multimedia Call Handling
DEFINITY ECS enables you to administer two devices as a multimedia call com-
plex. Composed of a voice terminal and a personal computer and/or data mod-
ule, the complex handles both voice and video calls. Multimedia calls are treated
in much the same manner as are voice calls. The user can:
■ Forward calls
■ Cover calls
■ Hold calls
■ Park calls
A multimedia complex is also useful for conducting video conferences. The ser-
vice circuits that support MMCH are in multiple port networks and allow for
increased simultaneous calls.
Multimedia call handling requires that the transmission endpoints comply with
the ITU H.320 standard for visual telephone systems. Specifically, it has been
tested with the following multimedia transmission equipment:
■ PictureTel
■ Proshare
■ Vistium
■ Zydacron
Multimedia call-handling features the following capabilities:
■ One number access — Allows users to dial only one number to access the
multimedia complex, regardless of the type of call. In MMCH, DEFINITY
ECS recognizes whether the call is multimedia or voice, and routes it to the
appropriate device in the complex — telephone or PC (or data module).
■ Multimedia to voice conversion — If a multimedia call cannot be handled
by the PC or data module in a multimedia complex for some reason,
DEFINITY ECS converts it to a voice call and sends it to the telephone.
■ Call redirection — Calls to the multimedia complex can be redirected to
coverage (AUDIX Voice Messaging, for example) or forwarded.
Multimedia calls sent to coverage are first converted to voice calls.
Multimedia calls that are forwarded to telephones are also converted to
voice calls. Multimedia calls that are forwarded to a multimedia station or
complex are not converted to voice calls.
■ Call-Me Conferencing — You can use the multimedia complex telephone
to control multimedia conferences. All the conference participants must
call the controlling telephone. The telephone must remain connected to
the conference for the duration of the conference.
■ Call association — The second call of a 2 B-channel call is automatically
matched with the first call and routed to the same multimedia complex.