7
ADDITIONAL NETWORK SERVICES
Optional Network services such as call waiting, reminder calls, charge advice, etc., can
be accessed via the R, #and *buttons. For further information, contact your Network
Operator.
PAUSE
For some Network services such as home banking or PABX’s which give a secondary
dial tone before further dialling, it may be necessary to insert a pause between digits.
Program the phone as described on page 5 and use the button to enter a pause. It is
not possible to enter more than three consecutive pauses.
WARNING
Do not position in areas of high humidity or in direct sunlight.
Do not position in bathrooms or near water.
CLEANING
The casing should be cleaned by wiping with a damp cloth. Do not use abrasives or spray
polish that may cause damage.
REN
The REN number of the X20 is 1. The REN number (Ringer Equivalence Number) is
designated to represent the amount of power that a telephone draws from the telephone
line. Most normal exchange lines have a REN capacity of 4. If you wish to connect any
other equipment to the line, simply add up the REN numbers of each piece and ensure
that the total does not exceed 4. If you exceed 4, one telephone may not ring. If the
equipment is BT supplied then, unless otherwise marked, the REN should also be
assumed to be 1.
CONNECTION INFORMATION
The X20 may be connected to public telephone networks in the United Kingdom. It may
be also connected to switching systems that use tone signalling with timed break recall.
If you are in doubt contact your switch supplier.
The apparatus should not be used as an extension to a payphone.
The apparatus should not be connected to a shared service.
Any other usage will invalidate the approval of the apparatus if as a result it ceases to
conform to the standards against which the approval was granted.