DOWNLOAD Panasonic KX-UDT121RU (serv.man4) Service Manual ↓ Size: 2.03 MB | Pages: 72 in PDF or view online for FREE

17

The headset is an optional
accessory.

Open the cover.

[Back View]

Headset Jack
The following headsets can be used with this unit. (Not all operations with the headsets can be guaranteed.)
- Wired headsets
  Panasonic RP-TCA400 and RP-TCA430
- Bluetooth headsets
  Selected Plantronics  -brand headsets
  Selected GN Netcom Jabra  -brand headsets
For up-to-date information about headsets that have been tested with this unit, refer to the following web site:

TALK/SP-PHONE (Speakerphone) Key
Used to make or answer calls, or toggle between Receiver mode and Hands-free  mode during a 
conversation.
During a conversation using a headset, Hands-free mode does not work.

Navigator Key
The Navigator Key includes four arrow keys and a center key. The arrow keys are used to adjust the
ringer/receiver volume or move the cursor to select an item. The center key is used to confirm a selection.
If in standby mode, pressing the keys perform the following functions:

LEFT (    ) 

 Used to display the Incoming call log.

UP (    ) 

 Used to adjust the ringer/receiver volume.

RIGHT (  ) 

 Used to open the phonebook.

DOWN (    ) 

 Used to display the Outgoing call log.

CENTER 

 Used to display the Menu.

In this manual, when a procedure instructs you to "press 

", you can also press the

[CENTER] key to confirm the selection.

R

R

18

HOLD/Voice Message Key
During talking, used to place a call on Hold. In standby mode, pressing this key plays your voice
messages.

Silent Mode Key
Used to turn Silent Mode on or off when pressed for more than 2 seconds in standby mode. 

Pressing the 

 key displays a menu with functions that have been assigned to each dial key (0 –9,

, and #). The functions can be selected from the menu, or accessed quickly by pressing           , then 

the assigned key.

Soft Keys
The handset features 3 soft keys. By pressing a soft key, you can select the feature shown directly above
it on the display. 

POWER/CANCEL Key
Used to end calls, exit the phonebook or Function mode, or turn the handset on or off.

TRANSFER/CLEAR Key
Used to transfer a call to another party, or to clear digits or characters.

Pressing the 

 key followed by a keypad number (0–9) allows you to perform various common

functions quickly. 

Strap Holes
Used to attach phone straps and similar items.

19

Connect the AC adaptor to the charger.

• The AC adaptor should be connected to a vertically oriented or floor-mounted AC outlet. Do not connect the AC adaptor to a ceil-

ing-mounted AC outlet, as the weight of the adaptor may cause it to become disconnected.

• Fasten the AC adaptor cord to the cord holder.
• Use only the included Panasonic AC adaptor.

• To reduce the risk of fire or electric shock, do not overload AC outlets and extension cords.
• Do not bundle the charger’s AC adaptor cord with the power cords of machines located nearby.
• Completely insert the AC adaptor/power plug into the AC outlet. Failure to do so may cause electric shock and/or excessive heat

resulting in a fire.

• Regularly remove any dust, etc. from the AC adaptor/power plug by pulling it from the power outlet, then wiping with a dry cloth.

Accumulated dust may cause an insulation defect from moisture, etc. resulting in a fire.

Open the battery cover, insert the batteries, and close the cover as indicated below.

At the time of shipment, the batteries are not charged.
Please charge the batteries for about 3 hours before using the handset for the first time.

• The charge indicator will turn off when the battery is fully

charged. For more information about charging the battery.

• It is normal for the handset and charger to feel warm while

the battery are charging.

• Keep devices sensitive to magnetic fields away from the

charger.

• Use only the included charger.

Hooks

To AC Outlet

20

After your Panasonic battery is fully charged (at 25 

°C):

*1 When the "Talking" setting of "Backlight" is set to "Off".
*2 When the "Talking" setting of "Backlight" is set to "On".

• Operating time may be shorter than listed above depending on usage conditions and ambient temperature.
• The battery will drain slowly even while the handset is turned off.
• The handset can receive calls while charging.

• Battery consumption increases when the handset is out of range (if  "

" flashes, turn the handset off).

• Clean the handset and the charger contacts with a soft, dry cloth once a month. Clean more often if the unit is subject to grease,

dust or high humidity. Otherwise the batteries may not charge properly.

The battery need to be charged in the following situations:

• The battery level indicator displays as empty (“ 

 “) and the alarm sounds*1.

• "Charge Battery" is displayed. In this situation, the handset cannot be operated.

*1 If the low battery warning occurs during a conversation, the handset will turn off in a few minutes.

If the battery level indicator displays as empty  (" 

 ") after using the phone for a short time, even when the battery have been

fully charged, the battery should be replaced.
Before replacing the battery, make sure the low battery warning is displayed, then turn off the power to prevent memory loss.
Replace the battery and charge the new battery for about 3 hours.
If you replace the battery before the low battery warning appears, the battery strength icon may display an incorrect reading. 
In this case, use the handset as normal with the new battery installed. 
When the low battery warning is displayed, charge the battery for about 3 hours. The battery strength icon will then display the
correct reading.

• There is a danger of explosion if the batteries are incorrectly replaced.

While Talking
(Backlight off *1, Bluetooth off, Narrowband Mode)

Up to about 13 h

While Talking
(Backlight on *2, Bluetooth on, Wideband Mode)

Up to about 7 h

While not in use
(Standby)

Up to about 200 h