You can still
1. Ignore voice messages
2. Ask pointed questions to any live caller, esp. one calling from a new number and asking for money...
1. Ignore voice messages
2. Ask pointed questions to any live caller, esp. one calling from a new number and asking for money...
"In case we get cut off, what phone number can I call you back on?"
If they actually give you a number instead of hanging up (which has NEVER happened in the many times I've used this line), just hang up immediately and call them back, to see if they answer.