Gigaset COMFORT 552 Manual page 49

Dynamic black list
A spam number is not usually active for a long time. New call numbers are generated continually
for the same cold calls. However, the number of black list entries is limited by the storage space.
The black list is managed as a dynamic list. The oldest number is removed from the list when the
list is full, and a new number is entered.
Enabling/disabling dynamic function:
Settings
Dynamic List
Numbers protected from deletion are not removed.
Activating/deactivating first ring muting
When the black list is enabled, the first ringtone is always suppressed (to first analyse the black
list). Enabling/disabling suppression of the first ringtone (when the phone is idle):
(e.g. 1) . . . then
Do not mute the first ringtone:
Mute the first ringtone (default setting):
OK Telephony
Edit ( = activated)
Protection against unwanted calls
OK Blocklist
. . . the current setting flashes in the input field
OK
OK
OK
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