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Installing Applications
Considerations
Applications that use mode codes must be connected to integrated VMI
ports. Applications (such as MERLIN Attendant) that do not use mode codes
connect to generic VMI ports. The tip/ring ports on 012 basic telephone
modules are programmed to be either “generic VMI” or “integrated VMI.”
A VMS requires a certain number of touch-tone receivers (TTRs), depending
on the number of VMS ports (see Table 8-1). TTRs are supplied by the
following modules: 008 OPT, 012, 400, and 400 GS/LS/TTR. However, the
VMS applications are not supported on the 008 OPT module.
Table 8-1. TTRs Required by VMS
No. of 400 or
No. of
No. of
No. of 012
400 GS/LS/TTR
VMS ports
TTRs Required Modules Modules
1 1
1
0
2
1
1 0
3
2
1
0
4
2 1 0
6
3
1 or 2
0
1
8
4
1 or 2
0
1
12
6
2 or 3
0
1
Voice Messaging Systems and TTRs
8-3