Avaya 11-300244 사용자 설명서

Avaya Modular Messaging Concepts and Planning Guide

12-2

November 2004

Avaya Modular Messaging Concepts and 

Planning Guide

When sizing port requirements, planners need to be able to estimate the 
following:

!

The number of subscribers in a voice mail domain

!

The number of ports required to support the estimated number of 
subscribers

!

The number of messaging application server (MAS) units 
required to provide those many ports

!

The number of e-mail readers required to provide text-to-speech 
capabilities for the estimated number of subscribers

To simplify the planning process, Avaya has designed offers that have 
pre-calculated estimations of the number of ports and messaging 
application servers required for a given number of subscribers of each 
Modular Messaging version. In addition, the offers also provide an 
estimate of additional e-mail readers.

For Modular Messaging—MSS, the offers are based on the telephone user 
interface (TUI) assigned to subscribers. 

Important: The Modular Messaging offers eliminate the need for 

calculation of port requirements, the number of messaging 
application servers required, or the number of port boards 
required. 
Planners that wish to perform a more detailed study of the 
port requirements and the number of MAS units required can 
refer to 

 

on page 12-21. However, those instructions are only meant 
for planners with sufficient prior experience in implementing 
a messaging system.

When planning a system, it is important to be able to make an accurate 
estimate of the number of ports that would be required to provide services 
to a given number of subscribers. 

The Modular Messaging offers provide pre-calculated estimates of the 
required number of ports. However, it is beneficial to a planner to 
understand how the port usage patterns of subscribers affect the 
estimation of port capacity.