Panasonic DPMB545EU Operating Guide

The connection to the telecommunication systems must 
not be hard wired and must be unplugged before the earth 
is disconnected.

This apparatus is connected to the exchange line or 
PABX/PMBX extension by the new standard British 
Telecom plug and socket.
Arrangements for provision of this type of termination can 
be made through the nearest British Telecom Sales Office.

This apparatus may be connected to the following types of 
installation.

a) For connection to the public switched telephone 

network (PSTN) and compatible PBX (Private Branch 
Exchange), which use DTMF signalling. (Please 
consult your supplier for an up to date list of 
compatible PBX’s.)

b) The apparatus can be used on extension sockets 

connected to a direct exchange line (D.E.L.).

c) This apparatus is suitable for connection to the 

telecommunication system directly or via compatible 
private branch exchange as an extension. The supplier 
of the apparatus should be consulted for an up to date 
list of PBX’s with which the apparatus is compatible. 

It cannot be guaranteed that the apparatus will operate 
under all possible conditions of connection to compatible 
PBX’s.

● 

This apparatus is suitable for connection to a PBX with 

or without initial proceed indication.

● 

This apparatus is suitable for connection to a PBX with 

or without secondary proceed indication. 

Any cases of difficulty should be referred in the first 
instance to the supplier of the apparatus.
d) The apparatus must not be connected in the following 

manner: 
–As an extension to a pay phone 
–As a party line with shared service

●

 

If you experience any problems with the normal use of 

your apparatus, you should unplug it from the telephone 
outlet and connect a known working telephone in its 
place. If the known working telephone still gives 
problems, then please contact the customer service 
department of your PSTN operator (e.g. BT etc.). If it 
operates properly, then the problems are likely to be a 
fault in your apparatus. In this case, consult your 
supplier for advice.

● 

Your PSTN operator may charge you if they attend a 

service call that is not due to apparatus supplied by 
them.

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