Switch between Bluetooth-connected phones

It is possible to switch between a number of Bluetooth-connected phones.

You can do this by opening the phone app and pressing P5P6-iCup-2222-Change phone symbol.

It is also possible to change between phones as follows:
Tap on iCup-2037-Settings symbol at the bottom of the display.
Press Connectivity.
Under Bluetooth, tap on the name of the phone to be connected.
Select whether it should be used for both telephony and media.