A:Answer Yes, but expect to spend some time setting it up. Phone system supports several ways to block: 1) allows only calls from pre-set allowed call list (very restrictive, think hard before using) 2)instant block at time of call; one button on phone 3) block calls from set area code(s) 4)block calls with no caller id 5)callers from landlines can be give a code to bypass system-- e.g. from business exchange, hotels, schools etc. 6) other combinations possible if you are creative. Blocked table allows 1000 numbers. All handsets and base unit can block. Calls into linked cell phone (2 cell phones supported, but only one at a time) are harder to deal with. Instruction sheets provided with phone system are less than clear in places; some programming logic experience is helpful, but you can get a very good basic system quickly. My unwanted calls dropped dramatically after only a week of use. Blocked calls are one ring and gone. I'll probably turn that feature off as I gain confidence; a block with NO ring setting is possible, but for now I check to make sure I don't kill something valuable.
