AT&T 518-600-016 manual Available for Feature Module 1, Feature Module 2, Line, Product

Off-Premises Range	The Off-Premises Range Extender (OPRE) will be
Extender	available for Feature Module 1, Feature Module 2, and
	Release 3 users to connect a basic Touch-Tone telephone
	at a remote location to the system via an outside telephone
	line.
	NOTE: As of this printing the Off-Premises Range
	Extender is not available. It is scheduled to be
	certified in the last quarter of 1989. Installation
	information will be supplied in a CIB with the
	product.
Off-Premises	Service may be provided for Feature Module 1 users in a
Telephone Interface	remote location by using the Off-Premises Telephone
	Interface (OPTI). The OPTI can connect a basic Touch-
	Tone telephone at a remote location to the system via an
	outside telephone line. See Figure 2-36.

2-128Adding Accessories