Just an update: It's been about 8 months and my telemarketing calls have stopped completely. So it would appear my solution was a success. I wish Apple would offer the ability to assign custom voicemail greetings for different callers from within its own voicemail system. Maybe it will...
Ever since I got an iPhone I have been plagued with calls from telemarketers and bill collectors looking for the previous owner of my phone number. I had gotten to the point where they were calling 10+ times a day. At first I would just let it go to voicemail but after a while I just wanted to...