Avaya Communication Manager Administrator's Manual page 282

Managing MultiMedia Calling
Understanding the Multimedia Complex
Coverage
Multimedia calls to a Basic mode complex are subject to the same coverage criteria as voice calls and
follow the coverage path administered for the voice station of the Basic multimedia mode complex.
If a plain voice station or a Basic mode complex is the covering party, the answering voice station will
receive audio only. If all voice stations in the coverage path have the station screen Early Answer field set
to n and the originator of the multimedia call was not a local Enhanced mode complex, the answering
station will hear hourglass tone.
If an Enhanced mode complex is the covering party, the answering voice station will receive voice and
video. If all voice stations in the coverage path have the station screen
originator of the multimedia call was not a local Enhanced mode complex, the answering station will hear
hourglass tone.
Coverage: Multimedia calls and off-net call coverage
If the principal station's coverage path include a remote coverage point, the multimedia call will cover
off-switch as voice only. If the call is unanswered off-switch and proceeds to the next coverage point
on-switch, the multimedia nature of the call is preserved.
Coverage: Multimedia calls and coverage to voice mail
Voice mail systems such as AUDIX are typically the last point in a coverage path and are usually
implemented as a hunt group. In order to guarantee that the originator of an H.320 multimedia call hears
the voice mail greeting, the hunt group that defines the list of voice mail ports should have the
Answer field on the hunt group set to y. This field will have no effect on voice calls to the voice mail
system.
Call Detail Recording
Each channel of a 2-channel call generates a separate CDR record.
Data Collaboration
Once you have established a multi-point video conference, multi-point T.120 data collaboration may be
enabled for that call. This will allow all video parties on the current conference to collaborate.
T.120 Data conferencing is made possible through the Extended Services Module (ESM) server, which is
an adjunct to Avaya Communication Manager. Up to six parties may participate in a single data
conference, and up to 24 parties may use the ESM facilities for data collaboration at any given time.
Adding data sharing to a video conference
1
Set up a multimedia conference.
2
Once a multimedia call is active, any voice station in the conference, can initiate data
collaboration by pressing the mm-datacnf button. Or, to use the feature access code to initiate a
data conference, press the Transfer button. A second line-appearance becomes active and you
hear dial tone. Dial the multimedia data conference feature access code. Confirmation tone is
heard and the system automatically reselects the held call appearance of the multimedia
conference. Avaya Communication Manager will select a data rate which is acceptable to all
H.320 DVC systems in the current call.
282 Administrator's Guide for Avaya Communication Manager
field set to n and the
Early Answer
Early
November 2003