A:AnswerYes, Call Block
This unit can block calls by storing the desired items in the call block list beforehand (Caller ID subscribers only).
“Block a single number”: The unit blocks calls from specific phone numbers stored in the call block list.
“Block range of numbers”: The unit blocks calls that begin with a number stored in the call block
list, such as a toll-free phone number prefix or certain area codes.
"Block unknown CID": The unit blocks calls that have no phone number.
A:AnswerYou can expand your phone system by registering optional handsets (6 max.) to a single base
unit. You can expand it by purchasing one of the Cordless Additional Handsets: KX-TGDA50/KX-TGDA51
A:AnswerMike, there's a volume control button located on the side of the phone.... also, if you're using it on speaker, the red button next to call"Call Block" will kick up the volume.
