Lucent Technologies 555-661-150 manual Lines and Trunks

MERLIN LEGEND Communications System Release 6.1	Issue 1
Network Reference 555-661-150	August 1998
1 Introduction
Tandem Trunking and Tandem Switching	Page 1-10

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.