Avaya Communication Manager Administrator's Manual page 340

Managing MultiMedia Calling
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
Note:
collaboration session and retaining voice/video. Some H.320 DVC systems drop
the entire call. Avaya recommends 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.
Joining a multimedia conference after T.120 data sharing has been enabled.
If a multimedia conference with T.120 data sharing is already active and it is desired to
conference in a new video endpoint, the new video endpoint can be conferenced into the
existing call. The new endpoint will be allowed into the data conference if there exists sufficient
ESM server resources for the new endpoint. The new endpoint will get voice/video and data
sharing if the new endpoint supports the multi-layer protocol (MLP) data rate chosen by the
system when T.120 data collaboration was activated. If the endpoint does not support the
pre-existing MLP data rate, the new endpoint will only receive voice and video.
Single server or switch data collaboration.
When all parties involved in data collaboration conference are located on the same physical
Avaya DEFINITY Server or media server, there is no restriction on the type of user. The parties
may be any combination of Enhanced multimedia complexes, Basic multimedia complexes or
stand-alone H.320 DVC systems.
Multi-switch data collaboration.
When all parties involved in data collaboration conference are not located on the same physical
Avaya media server, the parties located on the Avaya server hosting the data conference (i.e.
the server which activated mm-datacnf) may be any combination of Enhanced multimedia
complexes, Basic multimedia complexes or stand-alone H.320 DVC systems. All parties on
remote servers must not be Enhanced multimedia complexes: they must be Basic multimedia
complexes or stand-alone H.320 DVC systems. Prior to originating or receiving a multimedia
mode call, the mm-basic feature button or feature access code can be used to dynamically
change an Enhanced mode complex into a Basic mode complex and back again.
340 Administrator Guide for Avaya Communication Manager