Connecting The Versatile Voice Processing Voice Mail System - Comdial DSU II System Manual

IMI66–132
2.18.8 Connecting The Versatile Voice
Processing Voice Mail System
The Versatile Voice Processing (VVP) voice mail system provides voice mail and automatic
attendant features to the DSU II digital telephone system. A Comdial proprietary voice board
and proprietary software package installed in a personal computer (PC) provides the VVP
feature. A separate publication, which is supplied with the VVP equipment, discusses its
installation, programming, and operating details. The information contained below discusses the
VVP connections to the DSU II.
The VVP requires industry-standard telephone (IST) station ports for its interface to the DSU II.
Each VVP voice port requires its own IST interface. To provide the necessary IST interfaces,
you must either install a JM008 expansion module (Section 2.14.2) or connect an ATI-D
(Section 2.18.2) to the DSU II common equipment cabinet. Remember, one JM008 expansion
module provides eight IST ports while each ATI-D provides two.
The VVP software uses both voice and signalling paths between the DSU II and the VVP voice
processing circuit board. By using an in-band signalling technique, the IST ports handle both of
these paths. The efficiency of in-band signalling is dependent upon the availability of idle paths,
and busy systems that rely on in-band signalling sometimes slow down. Busy systems work
more efficiently when the signalling path is provided through a serial data connection between
the VVP's PC and the DSU II's common equipment. This arrangement is termed serial
integration. You must provide serial integration if VVP includes the optional Visual Voice Mail
(VVM) feature or if you are using the PCIU (Section 2.18.7) to provide this feature to a single
system telephone.
2 – 86 Installing The DSU II Digital Telephone System
DSU II Digital Telephone System