Cordless phones: Compare features & prices BT Synergy 6500 single review http://www.which.co.uk/technology/phones/reviews/cordless-phones/bt-synergy-6500-single/review/
Boasting a titanium and silver finish, the Synergy 6500 is a premium digital phone from BT. It is packed with advanced features such as answering machine, caller ID, call log and conference call. Is this digital cordless phone a good all rounder? And how did it fare in our in-depth usability and sound tests?
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No. of handsets
How many handsets come with the phone on test.
Weight of individual handset.
Whether the phone comes with a wall mounting kit.
The maximum number of handsets that can be used with one base station.
Type of screen that the phone has: M = monochrome, C = colour, N/A = none.
The phone's liquid crystal display. Matrix displays, similar to those on mobiles, are the best.
How the machine alerts you to the presence of new messages.
How the machine provides details (time and date) of any left messages.
You can press a button to call selected numbers.
How many numbers the phone can store.