Siemens Gigaset AS180 Manual page 16

3-5 Message Length
3-6 Ring Delay
3-5-1 Maximum
3-5-2 1 Minute
3-5-3 2 Minutes
3-5-4 3 Minutes
3-6-1 Immediately
3-6-2 10 sec
3-6-3 18 sec
3-6-4 30 sec
3-6-5 Auto
16
Do not limit the recording time for each call.
Limit the recording time to 1 minute per call.
Limit the recording time to 2 minutes per call.
Limit the recording time to 3 minutes per call.
Call is answered immediately.
Call is answered after 10 seconds.
Call is answered after 18 seconds.
Call is answered after 30 seconds.
If there are no new messages, the answer machine answers a call
after 18 seconds. If new messages are present, the answer
machine answers a call after just 10 seconds.