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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Managing multimedia calling
204Multimedia Applications Server Interface
9
■ MMCX interface — PRI interface for connecting an MMCX server to other
public, private or WAN switching systems or equipment that is part of the
public network. Similar to a DEFINITY trunk group. These may include
non-MASI trunks connecting the DEFINITY ECS and the MMCX.
■ MMCX trunk — The DEFINITY system representation of trunk or network
facilities terminating on MMCX. For purposes of MASI, they are called
“interfaces.”
Planning for MASI
Before you start to administer MASI, you should make a plan for how to do it.
Among the configurations on the following pages, there is probably one that
matches the configuration of your system fairly closely. You might want to either
write on these pages, or draw up your own configuration. It may help you if you
have already determined trunk group and signaling group numbers, unused
extensions, and so on. The following are things you need to consider:
■ Establish the dial plan on the MMCX to agree with that of the DEFINITY
ECS. If you use Universal Dial Plan and MMCX, you may need to make
adjustments for the MMCX dial plan.
■ Find unused extensions and trunk group numbers. You need:
— one trunk group number for each ISDN-PRI connection to the
MMCX
— one signaling group number for each MASI node and an unused
DEFINITY extension for the signaling group
— one unused DEFINITY extension for the Near-End Path
Termination number for all MASI Paths to this ECS. You can use
the same number for all MASI nodes in the domain.
— two unused MMCX extensions for the nearpath and tscnum
arguments to the
chgmasi command. This is the command you use
to administer MASI on the MMCX.
MASI configurations
There are several ways to set up combinations of MASI nodes and DEFINITY
servers.The following figures depict several possible configurations.