Motorola HS850 Manuel page 26

You can activate call functions according
to the following table:
Device Status
Phone
Enter Pairing (Configuration) Mode:
On
Make a Voice Dial Call:
On in idle
Dial a Number:
On–user
dials
number
Redial a Number:
On–Idle
24 Using Your Headset
Headset
Press & hold E
Off
(boom until LED remains
on. Release E ,
closed)
open boom.
Short press E ,
On
speak name, phone
dials call.
On Press SEND on
phone to complete
the call.
Long press E
On–
(Idle)
Action
.