Operation Manual

31Using additional handsets
9. Using additional handsets
You can register up to ve handsets to your C4 base to extend your phone system without
having to install extension sockets for each new phone.
Each C4 handset can be registered with up to four bases. You can then select the base you
prefer to use.
If you have purchased a C4 multiple pack, all additional handsets come pre-registered to
the base.
If you have purchased an additional handset separately, you must register it to your C4
base before it can be used.
9.1 Registering an additional handset
NOTE
Handset batteries must be fully charged before you start to register. Hold your handset
close to the base during the registration process. Handsets that were supplied with your
C4 base are already pre-registered.
On the base:
1. Press and hold
a for 3 seconds until you hear two beeps. The base will remain in
registration mode for 90 seconds.
On the handset:
1. Press
m, scroll d to REGISTER and press m.
2. Scroll
d to REG BASE and press m.
3. Enter the base number (1 - 4).
The base numbers that are already in use flash. The display shows
SEARCHING...X
4. When the handset nds the base signal the display will ask for the PIN to be entered.
Enter the 4 digit PIN code (default = 0000) and press
m. You will hear a beep if the
registration is successful. The handset is automatically assigned an available handset
number. Use this number when making internal calls.
NOTE
If registration is not successful the rst time, please repeat the process again in case the
base registration period ran out of time. If the base is not found after a few seconds, the
handset returns to standby. Try registering again.
If there are already 5 handsets registered to the base, the registration will fail. You must
de-register another handset before you can register a new one.