Didn't answer and never will answer any calls I don't know and especially when they don't leave a message. The phone is right next to me and I will immediately change the caller id to something else so I already know not to answer if they call back again.

Same as above. Reverse lookup shows call originated from a landline phone. No other information available.

Received a call from 706-307-7552 when I was away from the phone.  No caller ID (UNAVAILABLE) and no message.

I recognize this man's voice and he as usual is asking for a donation for the "Policeman's Charity Ball . I confronted him and told him I personally know that no organization would call my home at 8:34 pm asking for donations .