Lucent Technologies Release 8.2 manual Definity Switch Connectivity, Connectivity Overview

1 Networking Overview

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DEFINITY Switch Connectivity

This section describes the basic components of a network of DEFINITY switches and how voice and signaling data are transmitted between switches for the different types of switch connections. It also provides a summary of the administration procedures for connecting switches via an IP network (using the C-LAN and TN802B-MedPro circuit packs).

Connectivity Overview

Why connect switches? DEFINITY switches can be connected in various ways for various reasons. The main motivation for connecting switches is to enable people within an enterprise to easily communicate with one another, regardless of their physical location or the particular communications server they are assigned to. Inter-switch connections also enable the sharing of communications resources such as messaging and Call Center services.

What kinds of connections are possible?

Trunks

Switches communicate with each other over trunk connections. There are several kinds of trunks — each kind provides a different set of services for the connection. Commonly used trunk types are (Central Office) CO trunks, which provide connections to the public telephone network through a central office, and tie trunks, which provide connections between switches in a private network.

These and other common trunk types are described in DEFINITY ECS Administrator’s Guide , 555-233-506.

DEFINITY ECS Release 8 introduces the H.323 trunk, which allows voice and fax data to be transmitted over the Internet to another DEFINITY system with H.323 Trunk capability. The H.323 trunk supports Q.931 services such as DCS+ and QSIG.

Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000	CID: 77730	1