Battery Installation; Battery Duration; When The Battery Needs Charging; When To Purchase A New Battery Pack - IBM -3920 Installation And Operating Manual

BATTERY INSTALLATION

To install the cordless handset Ni-MH battery pack:
1. Slide the battery pack up into the compartment at the
bottom of the handset. Make sure that the label with two
arrows faces the back of the handset and that the "- +"
end of the battery is inserted first.
2. Snap the battery compartment cover into place.
3. Place the handset on the charging cradle.
4. Once you have installed the battery pack and placed the
handset on the cradle. The display will show
"CHARGING."
5. IMPORTANT: Charge the battery pack for at least 12
hours before using the handset the first time.
6. The Charge LED on the charging cradle will light when
the handset is properly making contact with the charge
terminals.

Battery Duration

A fully charged battery lasts for approximately:
• 5 hours when you use the handset continuously (talk
time).
• 7 days when the handset is not in use (standby).

When the Battery Needs Charging

• The phone will beep.
• The display will show "BATTERY LOW" and the
Battery Low Icon.

When to Purchase a New Battery Pack

If the battery lasts only a few minutes even after a full charge, the usable life of the
battery has expired and needs to be replaced. Contact TT Systems LLC customer
support center at 1-800-955-1009 or on the Internet at www.ttsystems.com.
Insert
battery
with this
label
facing
handset
back
Battery Low Icon
Jan 01 Monday
USERNAME 12:28AM
BATTERY LOW
MEM CID
13

CONNECTING THE PHONE

Connect the base

1. Connect the telephone
line cord to the "LINE"
jack and to a telephone
outlet.
2. Connect the larger of the
two AC power adapters
to the 9V DC jack and to
an AC outlet.
Tip: If your telephone outlet
is not a standard
RJ11/RJ14 wall jack,
contact your telephone
company for assistance.

Connect the charging cradle

1. Connect the other AC power adapter
to an AC outlet and into the plug in
the bottom of the charging cradle.

Initialize the handset to the base

1. Once phone is fully connected and
the handset is placed in the charging
cradle, the phone will automatically
register to the base, selecting one of
over 60,000 security codes.
2. If for some reason it is necessary to reinitialize the handset, simultaneously
push and hold the P key on the base and the F key on the handset
for five seconds, or until "REGISTER" appears on the display.
Note: Use only the supplied AC power adapters. Connect the AC power
adapters to a continuous power supply. Place both the base and
charging cradle close to the AC outlet so that you can plug in the AC
power adapter easily.
!
DC 9V IN
Line Data
14