Siemens OptiPoint 410 - Manual (Page 28)

Step by Step
Making Calls – Basic Functions
28
Dialing with repertory keys
Precondition: You have saved a number on a repertory
dialing key
Æ page 26.
Press the key with the saved number.
If the number is on the second level, press the shift key
beforehand.
The other party answers:
n
Lift the handset.
or With the handset on-hook: speakerphone (not available
with optiPoint 410 economy).