Siemens optiPoint 420 standard - Using Callback; Storing a Callback; Answering a Callback; Checking and Canceling a Saved Callback

Using the optiPoint 410/420 family S V6.0
26
Example: optiPoint 410 entry
Keys for
telephone settings
Keypad
Handset
Speaker
for ring tones
Key field –
freely programmable
keys*
LEDs