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MERLIN LEGEND Communications System Release 6.1
Network Reference
555-661-150
Issue 1
August 1998
Introduction
Page 1-10Tandem Trunking and Tandem Switching
1
about private network configurations. In the next topic, we will revisit all three of
these configuration diagrams.
Lines and Trunks 1
The types of tandem trunks that connect systems in a private network, as well as
the types of facilities that connect systems to the PSTN affect the performance
and available features in a private network. This topic examines the distinctions
among trunks and the important decision factors that you must consider when you
set up your private network. It also discusses the advantages and disadvantages
of the configurations we looked at in the previous section.
Tandem PRI facilities have numerous advantages over the tandem T1-emulated
or analog tie trunks that can link systems in a private network. Table 1–1
summarizes the differences. In Chapter 2, “Call-Handling Scenarios,” you will
learn more about the details of the features that are noted here.
NOTE:
Centralized Voice Messaging is available for Release 6.1 and later systems
only. For Release 6.0 systems, disregard the Centralized Voice Messaging
capability in the following topics because each system must have its own
voice messaging application.