A:Answer YES! On page 21 in the instruction booklet, it states: "Single phone numers and ranges of numers can be stored in the call lock list up to 250 items in total."
Also, on page 21 under "Storing a single ;phone number, it states the following:
"Important: We recommend storing 10 digits (including the area code). If only 7 digits are stored, ALL numbers that have the same last 7 digits will be blocked."
So carefully read page 21 about blocking calls.