How to adjust the telephone ringer volume or turn it on or off.
Learn how to adjust the volume of the ringer higher, lower or turn off.
How to register / deregister a telephone handset.
The supplied handset and base unit are preregistered. If for some reason the handset is not registered to the base unit, or if you purchase an additional handset, this answer will show you how to register the handset.
How to remove / unblock a number from the blocked calls list.
Follow the instructions to learn how to unblock/remove a number that you no longer want blocked.
How to set up the telephone's date and time.
The Date and time is automatically displayed by signals that it receives from your telephone provider. However if for some reason it is incorrect you can manually set the date and time.
How to set up the telephone's speed dial feature.
Speed dial is that allows you to place a call by pressing a reduced number of keys. This answer will show you how to store speed dial numbers.
How to use the Call block feature.
Learn how to block numbers that you do not want to ring on your telephone. Useful for telemarketers.