Voice Messaging Systems; Ttrs Required By Vms - AT&T MERLIN LEGEND System Reference Manual

System Applications

Voice Messaging Systems

A voice messaging system (VMS) is not an application but is a category of
applications. Each of the following applications is used as a VMS and is
connected to an enhanced tip/ring port called a voice messaging interface
(VMI) port:
MERLIN MAIL Voice Messaging System
MERLIN Attendant
AUDIX Voice Power—lS II
Integrated Voice Power Automated Attendant—lS II
The system provides generic and integrated VMI ports. The MERLIN MAIL Voice
Messaging System and AUDIX Voice Power—IS II applications use streams of
touch-tone codes (called mode codes) to communicate information.
Applications that use mode codes must be connected to integrated VMI ports.
Applications (such as MERLIN Attendant and Integrated Voice Power
Automated Attendant—lS II) 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 amount of touch-tone receivers (TTRs), depending on
the number of VMS ports (see Table 3-2). 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 3-2 TTRs Required by VMS
Voice Messaging Systems 3-3