Lucent Technologies 555-235-100 manual Network Interfaces and Equipment, Trunk Group Circuits

10 Network Interfaces and Equipment

Network Interfaces and Equipment

DEFINITY ProLogix Solutions supports a variety of interfaces to voice and data networks. Trunks supply links between DEFINITY ProLogix Solutions, the public network, and other switches. DS1 interfaces offer high-speed digital connectivity between switches.

Trunk Group Circuits

Trunks provide the communications links between DEFINITY ProLogix Solutions and other switches, including central office switches and other premises switches. Trunks that perform the same function are grouped together and administered as trunk groups. Trunks interface with DEFINITY ProLogix Solutions via port circuit packs. DEFINITY ProLogix Solutions’ trunk group circuit types include the following.

Local Exchange Trunks

Local exchange trunks connect DEFINITY ProLogix Solutions to a central office. The following are some of the types available:

•central office trunks, which connect DEFINITY ProLogix Solutions to the local central office for incoming and outgoing calls

•foreign exchange trunks, which connect DEFINITY ProLogix Solutions to a central office other than the local one

•Wide Area Telecommunications Service trunks, which allow you to place long- distance outgoing voice-grade calls to telephones in defined service areas, priced according to distance in the service area, length of the call, time of day, and the day of the week

DEFINITY ProLogix Solutions Release 2 Overview 555-235-100 Issue 2 June 1999 10-15