Calls Incoming Screen
A system user can use this screen to whitelist/blacklist incoming call numbers. The whitelist is the exception to the blacklist.
NB .* (dot star) can be used as a wild card, for example if the device is not allowed to receive incoming calls from 01924555678, the number could be typed in the blacklist in its entirely or the system user could type .*678 or 01924.*. Both patterns would block the original number.
Get Blacklist
This button retrieves the currently blacklisted number on the device. They will appear in the left most list.
Clear All
This button clears all numbers from the blacklist on the device.
Set All
This button sets all numbers blacklisted on the device. (Essentially send .* to the device).
ADD
This button allows the system user to add individual numbers to the blacklist.
Please note the same functionality exists for whitelisting numbers. If the device is only allowed to accept calls from 3 numbers, it could be achieved by doing the following:
In the blacklistimg screen, click Set All. In the whitelisting screen, add the 3 numbers. These numbers would be the exception to the blacklist.