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Appendix
Your telephone can support up to ve DECT 6.0 cordless handsets, headsets
or speakerphones. You can purchase additional handsets AT&T EL50019,
cordless headsets or speakerphones (sold separately) to expand your
telephone system. Visit https://telephones.att.com/accessories
for a list of compatible DECT 6.0 cordless headsets and speakerphones.
Each new handset, headset or speakerphone must be registered to the
telephone base before use. You must register each handset, headset or
speakerphone separately.
To register a cordless headset or speakerphone to this telephone system,
please refer to the corresponding user’s manual for details. To register a
cordless handset, see below.
The handsets provided within your product box are already registered as
HANDSET 1, and so forth. Additional handsets are assigned numbers in the
sequential order they are registered (up to HANDSET 5).
Register a handset to the telephone base
1. 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.
2. Put the handset you wish to register
on the telephone base cradle.
3. The IN USE light on the telephone
base turns on. Aer about 10 seconds,
the handset shows Registering.... The
handset shows Registered and you
hear a conrmation tone if the registration was successful. The IN USE
light turns o. The handset is now registered with the telephone base.
If the registration fails, the handset displays Reg. 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:
X You cannot register a handset if any other system handset is in use.
X You can only register one handset to the telephone base at a time.
Adding and registering handsets/headsets/speakerphones
72
For registration, put the handset on the
telephone base, not the handset charger.
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