User Guide

Adding and registering handsets

Your telephone system can support up to five handsets. The handsets

provided within your product package are already registered as

HANDSET 1, and so forth. You can purchase additional handset AT&T

EL50003 to expand your telephone system. EL50003 is for use with

EL51103/EL51203/EL51253/EL51303/EL51353/EL51403/EL51453/

EL51503. Additional handsets are assigned numbers in the sequential order

they are registered (up to HANDSET 5). Each handset must be registered to

the telephone base before use.

Before you begin registration, make

sure the handset is out of the

telephone base or charger and shows

To register HS... and ...see manual

alternately.

Put the handset you wish to register

on the telephone base cradle.

The IN USE light on the telephone

base turns on. After about 10 seconds,

the handset shows Registering...

The handset shows Registered and

you hear a confirmation tone if the

registration was successful. The IN USE light turns off. The handset is now

registered with the telephone base.

If the registration fails, the handset displays Failed and then To register HS...

and ...see manual alternately. Try the registration again by removing the

handset from the telephone base and then placing it back in.

notes:

You cannot register a handset if any other system handset is in use.

You can only register one handset to the telephone base at a time.

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Appendix

For registration, put the handset on the

telephone base, not the handset charger.

TONE