Lucent Technologies 5 manual Incoming Trunks

MERLIN LEGEND Communications System Release 5.0		Issue 1
System Manager’s Guide 555-650-118		June 1997
2 About the System
	Incoming Trunks	Page 2-12
	Incoming Trunks	2

Trunks are the telephone company’s facilities, provided by the central office (CO) to carry voice or data communications (see Figure 2–6). There are a variety of trunks, each with different capabilities. These types have evolved over the years as technology has advanced and customer needs have expanded.

The decision concerning the type of trunks chosen for your company’s system depends primarily on your company’s needs. Other factors include cost (due to differing capabilities, the use of some trunks is more expensive than others), and availability (some of the advanced trunks are not available everywhere).

Your company chooses trunks before the system is installed. A Lucent Technologies representative works with you or your company’s representative to identify needs and, therefore, the appropriate type and number of trunks. When the Lucent Technologies representative places the order for the system equipment, she or he also contacts the local telephone company and arranges for the trunks.

Depending on the trunk type and what the CO can provide, a variety of services is available, for example, incoming and outgoing WATS (INWATS and OUTWATS).