974CIB_06 4/7/06 3:32 PM Page 3
This 974 telephone is fully compatible with any AT&T
This 974 telephone is also compatible with any AT&T 964/955/944 phones you have previously installed. This 974 telephone is NOT compatible with any 843, 853, 854, 874, or 954 telephones you may have previously installed.
NOTE: If you have one or more 964, 955, or 944 phone(s) installed in the same phone system with this 974 telephone, you can have only 12 extensions and 15 telephone lines in the phone system.
•You must have a modular telephone jack and an electrical outlet not controlled by a wall switch near where you’re installing the phone. The total length of telephone wiring used in this system MUST NOT be more than 600 feet as it may cause interference with the advanced features of this telephone.
•Identify the number of phone lines you’ll use.
•Plan the layout of your phone system.
•All connected phones must have the same line 1 phone number for the intercom and paging features to work.
Every individual phone in your telephone system MUST be assigned a unique extension number for the intercom feature to work. If you try to assign the same extension number to a second phone, you will hear a repeating short ring and the the screen display will includehEXThXXhishalreadyhusedhAssignhnewhEXTh#hif the phone is in idle mode. If the phone is in the programming mode, you will hear the repeating short ring only. See Assign an extension number to your phone on page 24 of this manual for directions.
•Decide if you want a private line. A private line does not appear on all connected phones.
•Choose your setting for each feature. You will need to program the features after installation. See Programmable features list beginning on page 7 for a brief description of the features. See the Feature setup section beginning on page 23 for programming instructions.
Before you begin
3