AASTRA 4187 Plus for BusinessPhone User Guide EN - Manual (Page 17)

17 BusinessPhone – Dialog 4187 Plus
Outgoing Calls
Handsfree
You can also make calls handsfree. Â
Press without lifting the handset.
z
Dial the number.
You are connected to the caller via the loudspeaker and
microphone. Д В
Press to terminate a handsfree call.
Headset
If a headset is connected to your phone: Í
Press without lifting the handset.
z
Dial the number.
You are connected to the caller via the headset.
П Н
Press to terminate a headset call.