Unify OpenScape CP700 - HFAG Call States in Conversations Screen

120 Using Bluetooth
Connected HFAG call in the Main menu screen
The icon with the Bluetooth rune index indicates connected HFAG call.
HFAG call states in Conversations Screen
Connected HFAG calls are displayed in the conversation list. The HFAG call is
distinguished from native calls by a special call state icon under the user name/
or phone number.