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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Managing multimedia calling
258Understanding the multimedia complex
9
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. The DEFINITY ECS 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 resources available for all
parties currently in the call, 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 DEFINITY 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.
5. The same H.320 DVC system as in step 4, opens an application,
whiteboard, etc. to share and the image of the application is displayed on
all H.320 DVC systems in the conference.
For details on how multiple users may control the shared application, see
the vendor provided documentation for your specific H.320 DVC system.
6. To end the data collaboration session and retain the voice/video conference,
the station that selected the mm-datacnf button or FAC may press the
mm-datacnf button or hit transfer and dial the mm-datacnf deactivation
FAC.
NOTE:
As of this writing, many endpoints do not respond correctly to ending
the data collaboration session and retaining voice/video. Some H.320
DVC systems drop the entire call. It is recommended that once T.120
data sharing has been enabled for a conference, that it remain active
for the duration of the conference call. When all endpoints have
dropped from the call, the T.120 resources will be released.