AT&T E2520 - Manual (Page 29)

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Appendix
Adding new handsets
Your telephone can accommodate up to eight cordless handsets . You can add new
handsets (Model E250, sold separately) at any time, but each must be registered with the
base before use.
Before using a new handset, you must register it with the
base. During registration, you must enter the 15-digit ID
number of the telephone base. The Base ID is located on
the bottom of the base unit.
Follow the instructions provided with your new handset
to register it for use with your telephone.
The handset provided with your telephone is automatically
registered as Handset 1. Additional handsets will be
assigned numbers in the order they are registered (2, 3, 4,
etc.) up to a maximum of eight .
ENTER BASE ID
12345678901234
Enter base ID, then press OK.
HANDSET 2
Handset 1 Handset 2 Handset 3
REDIAL MEM MENU
< OK
R
5
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