Canon L380S - Manual (Page 210)

APPENDIX
United Kingdom C-1
C
Country-Specific Features
United Kingdom
Connecting External Device
If the connectors of the external devices cannot be connected to the jacks on the machine, you will
need to purchase one or more B.T. adaptors to connect them as follows:
Ringer Equivalence Number (R.E.N.)
Your British Telecom line has a maximum R.E.N. capacity of 4. Your FAX has an R.E.N. value of 1
(unless otherwise stated), and so does the optional handset. You can therefore use additional
equipment with a total R.E.N. value of up to 2. If the R.E.N. value exceeds 4, the ringer volume will be
reduced and one or more of the connected equipment may not function.
B.T. ADAPTOR