Gemini Industries Gemini Basic - Manual (Page 4)

3
REN number
The REN number of this telephone is 1.
If you wish to connect any other equipment to the line, simply add the
REN numbers of each piece together and ensure that the total does
not exceed 4. If too many phones are connected to the line, the
circuit may be overloaded and your telephone may not ring.
Not all telephones have the same REN.
If a British Telecom phone is supplied unmarked, you can assume that
it has a REN of 1
Emergency calls
Calls can be made on this telephone to contact the emergency services. The
European code for emergency services is 112, however, you can still use 999
in the UK. An access code may also be required, if the phone is connected
to a PABX.
Figure 1 General Appearance
RINGER
INDICATOR
KEYPAD
HANDSET
CORD
HANDSET
MUTE
INDICATOR
MUTE
KEY
PAUSE
KEY
REDIAL
KEY
RECALL
KEY