Avaya Communication Manager Administrator's Manual page 271

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H.320 Conversion
non-multimedia complex voice stations and for Basic multimedia complex voice stations. It is
mandatory for Enhanced multimedia complex voice stations. Because the system can only handle
a limited number of conversion calls, you may need to limit the number of telephones with H.320
conversion. Enhanced multimedia complexes must have this flag set to y.
For non-multimedia complex voice stations, setting this field to y allows H.320 calls to convert to
voice and alert at the stand-alone voice station. If the call is unanswered at the voice station, the
call will follow standard voice treatment. Any subsequent station that is reached in the routing of
this call, that is, coverage points, forwarded destinations, call pickup members, and so forth, do
not need to have the H.320 field enabled. The H.320 field is only needed at the first station that
may receive the H.320 call.
For Basic multimedia complex voice stations, setting this field to y allows H.320 calls to convert
to voice and alert at the Basic multimedia complex voice station after an attempt has been made to
offer the call to the H.320 DVC system. If the call is unanswered at the H.320 DVC system, the
call will alert at the voice station after 5 seconds or after the administered number of rings as
specified in the voice station's coverage path. If the call is unanswered at the voice station, the call
will follow standard voice treatment. Any subsequent station that is reached in the routing of this
call, that is, coverage points, forwarded destinations, call pickup members, and so forth, do not
need to have the H.320 field enabled. The H.320 field is only needed at the first station that may
receive the H.320 call.
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Service Link Mode
connection between an Enhanced mode complex's H.320 DVC system and the Avaya
DEFINITY® Server which terminates the H.320 protocol. A service link is never used by a Basic
mode complex H.320 DVC system. Connecting a service link will take several seconds. When the
service link is connected, it uses MMI, VC and system timeslot resources. When the service link
is disconnected it does not tie up any resources. The Service Link Mode can be administered as
either 'as-needed' or 'permanent' as described below:
— As-Needed - Most non-call center multimedia users will be administered with this service
link mode. The as-needed mode provides the Enhanced multimedia complex with a
connected service link whenever a multimedia call is answered by the station and for a
period of 10 seconds after the last multimedia call on the station has been disconnected.
Having the service link stay connected for 10 seconds allows a user to disconnect a
multimedia call and then make another multimedia call without having to wait for the
service link to disconnect and re-establish.
— Permanent - Multimedia call center agents and other users who are constantly making or
receiving multimedia calls may want to be administered with this service link mode. The
permanent mode service link will be connected during the station's first multimedia call
and will remain in a connected state until the user disconnects from their PC's multimedia
application or the Avaya DEFINITY® Server restarts. This provides a multimedia user
with a much quicker video cut-through when answering a multimedia call from another
permanent mode station or a multimedia call that has been early answered.
Administrator's Guide for Avaya Communication Manager
November 2003
— Valid entries are y and n (default). This field is optional for
— The service link is the combined hardware and software multimedia
Managing MultiMedia Calling
Multimedia Call Handling
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