AT&T 2U20 - Manual (Page 18)

TONE (*) Key (Home Office Use) GHI JKL MNO
In order to interact with systems such as voice mail
and answering machines, you may need to use tone
dialing. Even if your base unit is normally set to pulse
(P) dialing, you may still switch to tone dialing via
the portable unit.
PRS TUV WXY
Tone Oper
●
●
●
Bottom of
portable unit
To temporarily switch to tone dialing, press the
TONE (*) key while the portable unit is on. Once
in tone dialing mode, the portable unit will remain
in this mode until the unit is turned off.
Responding to Low Battery Indicators
When using the portable unit, you will be notified of
a low battery condition by both an audible tone and a
flashing LOW BATTERY indicator. These indicators
will be activated approximately four minutes before
the battery pack is completely discharged.
On/Off Low B
Mute
On/Off Mute Redial/Pause
Flash Mem/Store Chnl
If you try to turn on the portable unit when it is
experiencing a low battery condition, the ON/OFF/MUTE
indicator will flash 3 times and turn off.
Once you notice the low battery indicators, immedi-
ately recharge the battery pack by placing the portable
unit in the cradle of the base unit. If the battery pack
is allowed to discharge completely, you may lose the
phone numbers stored in memory speed dial.
Once the battery pack is recharged, the low battery
indicators will turn off.
The headpiece may be used while the battery pack in
the portable unit is being recharged (see section on
Operating the Portable Unit From the Cradle).
Operating the Portable Unit From the Cradle
The portable unit and headpiece will operate when
seated in the cradle of the base unit, even when the
battery pack is discharged.
Replacing the Battery Pack
The battery pack may need to be replaced when it is
no longer able to maintain a charge. When replacing
the NICAD) battery pack, use only the specified
packs as follow:
Sanyo # 3N-270AA, 3.6V, 270mAh
GP NT30AAK3BML
Varta VIP 105/6
Before operating the portable unit, follow the instructions outlined
in the section on Installing and Charging the Battery Pack.
Once the new battery pack is fully charged, re-enter any phone
numbers that were previously stored in memory speed dial
(see section on Using Memory Speed Dial).
The RBRC™ Seal and Battery Recycling
The RBRC™ Seal on the nickel-cadmium battery pack contained
in our product indicates that AT&T is voluntarily participating in an
industry program to collect and recycle these battery packs at the end
of their useful life, when taken out of service within the United States.
The RBRC program provides a convenient alternative to placing
spent nickel-cadmium battery packs into the trash or municipal waste
stream, which is illegal in some areas.
AT&T payments to RBRC makes it easy for you to drop off the
spent battery pack at local retailers of replacement nickel-cadmium
batteries. You may also contact your local recycling center or call
1-800-8BATTERY for information on where to return the spent battery
pack. AT&T’s involvement in this program is part of its commitment
to protecting our environment and conserving natural resources.
RBRC™ is a trademark of the Rechargeable Battery Recycling Corporation.
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