Avaya Communication Manager Administrator's Manual page 339

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 Early 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.
If the system does not have sufficient ESM server resources available for all parties
currently in the call, the activation of T.120 data sharing will be denied. The mm-datacnf
status lamp will flash denial or the mm-datacnf FAC will produce reorder.
3. Each H.320 DVC system in the conference call is joined to the data conference. On many
DVC systems, the provided GUI may prompt the user with a dialog box, requesting the user
to select a specific conference to join. With MMCH, there should only be one conference
available to select.
4. The user must now use the PC's GUI to begin application sharing. The method for
beginning application sharing or file transfer is different for each H.320 multimedia
application. One of the H.320 DVC systems activates data sharing from the H.320 DVC
vendor provided GUI. See your H.320 DVC system documentation for details.
Understanding the Multimedia Complex
Issue 1 June 2005 339