AT&T MERLIN LEGEND Release 3.0 Programming Summary Manual page 337

Customer Support Information
FCC Notification and Repair
Information
This equipment is registered with the FCC in accordance with Part 68 of its
rules. In compliance with those rules, you are advised of the following:
Means of Connection. Connection of this equipment to the
telephone network shall be through a standard network interface
jack, USOC RJ11C, RJ14C, RJ21X. Connection to E&M tie trunks
requires a USOC RJ2GX. Connection to off-premises extensions
requires a USOC RJ11C or RJ14C. Connection to 1.544-Mbps
digital facilities must be through a USOC RJ48C or RJ48X.
Connection to DID requires a USOC RJ11C, RJ14C, or RJ21X.
These USOCs must be ordered from your telephone company.
Party Lines and Coin Telephones. This equipment may not be
used with party lines or coin telephone lines.
Notification to the Telephone Companies. Before connecting this
equipment, you or your equipment supplier must notify your local
telephone company's business office of the following:
— The telephone number(s) you will be using with this equipment.
— The appropriate registration number and ringer equivalence
number (REN), which can be found on the back or bottom of the
control unit, as follows:
If this equipment is to be used as a Key system, report the
number AS593M-72914-KF-E.
If the system provides both manual and automatic selection
of incoming/outgoing access to the network, report the
number AS593M-72682-MF-E.
If there are no directly terminated trunks, or if the only
directly terminated facilities are personal lines, report the
number AS5USA-65646-PF-E.
The REN (Ringer Equivalency Number) for all three systems
is 1.5 A.
Programming Summary A-3