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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 any 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
"999" calls can be made on this telephone, for the purpose of making
calls to the emergency service. An access code may also be required, if
the phone is connected to a PABX.
Figure 1 General Appearance
RINGER
INDICATOR
KEYPAD
MUTE BUTTON
HANDSET
HANDSET
CORD
REDIAL
BUTTON
RECALL
BUTTON
IN THE FRONT
OF THE HANDSET