BT BT3580 Quick Setup And User Manual page 11

Contents 11
Using additional handsets ............... 52
Registering an additional handset .... 52
De-registering a handset ................. 53
Making an internal call between
handsets ......................................... 53
Transferring a call ........................... 54
Holding a three-way call .................. 55
Help ................................................ 56
General information ....................... 60
Safety .............................................. 60
Cleaning .......................................... 61
How to recycle your equipment ........ 61
Guarantee ........................................ 61
Technical details ............................... 62
R&TTE .............................................. 63
Declaration of Conformance ............. 63
If you need some help, call us on 0800 145 6789* or go to bt.com/producthelp