Lucent Technologies 8.2 User Manual

Page of 1707
DEFINITY ECS Release 8.2
Administrator’s Guide  
555-233-506  
Issue 1
April 2000
Managing multimedia calling 
233
Multimedia Call Handling 
9
service link only applies to an Enhanced multimedia complex, never to a Basic 
multimedia complex. The service link is administered on the station form and can 
be either “permanent” or “as-needed.” 
Feature Description
MMCH’s two levels of functionality for a multimedia complex, Basic and 
Enhanced mode, are enabled either by switch administration or by an mm-basic 
feature button or FAC.
Basic Mode Operation
In Basic Mode:
All voice-only calls originate at the voice station.
All multimedia calls originate with the H.320 DVC system. 
All incoming voice calls attempt to alert at the voice station and receive all 
standard voice call treatment.
All incoming H.320 multimedia calls attempt to alert on the H.320 DVC 
system initially. If answered, a 2-way video call will result. The Basic 
multimedia complex voice station will not be involved in the call in any 
way.
If the H.320 multimedia call is not answered at the H.320 DVC system and 
the Basic multimedia complex voice station has the H.320 field 
administered to “y”, the call will:
— timeout at the DVC system
— alert at the associated voice station set as a voice-only call
— receive all standard voice call treatment.
Call control depends on what type of call is being originated. 
— Video is received and controlled at the PC. 
— Voice is received and controlled at the telephone set.
The voice station of a Basic multimedia complex must manually add their 
multimedia endpoint to a multimedia conference. There is limited support 
for multimedia feature interactions. A specific set of voice features work 
for multimedia calls.
Service Links are not used by Basic mode complexes.
A single number may be used to reach the Basic multimedia complex for 
voice or H.320 multimedia calls.