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HANDSET BATTERY INSTALLATION
The C4105 uses a 3.6Volt 600mAh NiMH recharge-
able 3 cell (AAA Type) battery that is included with
your unit.
Handset Battery must be connected before begin-
ning initial charging
To Install a New Battery
1. Remove battery cover
2. Install new battery
3. Connect battery pack
4. Replace battery cover
5. Charge for 12 hours before first use
Handset Battery Charging
1. Place the handset in the base. The CHARGE
LED on the base will light RED.
2. After the batteries are fully charged, check for
dial tone by pressing TALK on the handset.
Low Battery
When the handset battery gets low, there will be
two (2) beeps every thirty (30) seconds. If the bat-
tery becomes low while you are on a call, you will be
disconnected after about two (2) minutes. Terminate
the call and recharge the battery. To recharge the
battery pack, place the handset in the base.
1. Make sure the contact points are touching and
the CHARGE LED is lit.
2. Be careful not to short battery with Conducting
materials such as rings, bracelets and keys.
Battery Life
A fully charged battery provides an average talk time
of about four (4) hours, or standby time of about (8)
days. Talk time and standby time may vary depending
on operating conditions.
Installing and
connecting battery
Note: The battery
in the handset must
be fully charged for
twelve (12) hours
before using the
telephone for the
first time.
Talk Time: about
four (4) hours
Standby Time: about
eight (8) days
Battery
Connector
Battery
Pack Plug
Battery
Compartment
Cover
TELEPHONE HANDSET
Clarity
®
Power
™
Technology
With Clarity Power, the high frequency sounds are amplified more than the low
frequency sounds so words are not just louder, but clearer and easier
to understand.
BOOST – Clarity Power On/Off
The C4105 has a button that controls the loudness
of the receiver. Once the BOOST button is pressed,
an extra level of amplification is added over the en-
tire range of the volume control.
The TALK button will light ORANGE to indicate the
CLARITY POWER feature is activated.
WARNING:
When the TALK button is lit ORANGE volume may be at a high
level. To protect hearing, lower the volume control to minimum before using.
Volume Control
The dial controls the level of volume the handset and headset receive. The
volume dial provides up to 15 decibels of volume before the CLARITY POWER
button is activated. Once the CLARITY POWER button is pressed, the C4105
will provide up to 40 decibels of amplification.
Tone Switch
Adjusting the TONE switch allows you to customize your hearing experience.
Since we all have different hearing preferences we suggest exploring each set-
ting to find the one most comfortable for you.
Handset Ringer
Set the switch marked Ringer OFF/VIBE/ON located on the side of the hand-
set. When VIBE is selected the handset will ring and vibrate when receiving an
incoming call. The ringer switch must be set to ON or VIBE for the handset
to ring.
NOTE:
If both handset and base ringers are set to OFF, the visual ringer will
flash to indicate there is an incoming call.
Boost On: Talk
button is ORANGE
Boost Off: Talk
button is GREEN
