Avaya Communication Manager Administrator's Manual page 262

Managing MultiMedia Calling
Multimedia Call Handling
Operations in Basic or Enhanced modes
There are two distinct levels of functionality: Basic and Enhanced. The Basic mode of operation treats a
standard-protocol H.320 multimedia call as a data call. If the call is redirected, it is converted to a voice
call. As a voice call, certain features are enabled, such as coverage, voice mail, and multiparty video
conferencing.
The Enhanced mode of operation allows a multifunction telephone to control a multimedia call as if it
were a standard voice call. Spontaneous video conferencing, call forwarding, coverage, hold, transfer and
park, along with many routing features, are available to multimedia calls. Both modes of operation allow
data collaboration between multiple parties using the T.120 standard protocol.
Definitions: MMCH features and components
Multimedia call
A multimedia call, for MMCH, is one that conforms to the H.320 and T.120 suite of protocol standards.
These standards allow video-conferencing packages from different vendors to communicate with one
another. The capabilities of the individual multimedia-endpoint package can vary, however.
•
An H.320 call can contain voice, video and data.
•
The bandwidth for MMCH calls is limited to 2 B-channels.
Figure 32: MMCH multimedia complex
Basic multimedia complex
A Basic multimedia complex consists of a BRI-connected multimedia-equipped PC and a
non-BRI-connected multifunction telephone administered in Basic mode. With a Basic multimedia
complex, users place voice calls at the multifunction telephone and multimedia calls from the multimedia
equipped PC. Voice calls will be answered at the multifunction telephone and multimedia calls will alert
first at the PC and, if unanswered, will next alert at the voice station. A Basic multimedia complex
provides a loose integration of the voice station and H.320
262
Any vendor's
H.320 DVC
product
Administrator's Guide for Avaya Communication Manager
DEFINITY
DCP
multifunction
telephone
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DVC system.
DEFINITY
BRI
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circuit
card
DCP
port
circuit
card
November 2003