General information
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If you need some help, call us on 0800 218 2182* or go to bt.com/producthelp
Technical details
How many phones can I have?
(REN), which is used to calculate
the number of items which may be
connected to any one telephone
line. Your BT3880 has a REN of 1.
A total REN of 4 is allowed.
If the total REN of 4 is exceeded,
the telephones may not ring. With
guarantee of ringing, even when the
REN is less than 4.
Any additional handsets and
chargers that you register have
a REN of 0.
Connecting to a switchboard
Switchboard compatibility
This telephone may be connected
to most types of switchboard,
however in the event of any
Service Provider.
Recall (R)
Recall is used when connected to
certain switchboards/PBXs and some
BT Calling Features, or those services
available via your network provider.
The BT3880 supports timed break
recall but not earth loop recall.
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