About seven years ago when I was working for another company, I was filling in for an hour on reception while the receptionist took her lunch and a customer walked in who I dealt with quite a lot over the telephone in the course of my normal work. I had never actually met him before so I introduced myself whilst waiting for the project manager he'd come to see to come down to reception to collect him. "Oh" he said, looking somewhat disappointed, "you sound so attractive on the phone"! I must have looked a bit shocked as he quickly said, "no, no, I mean you sound so much younger on the phone" I think my expression turned to one of amusement as he went very red and mumbled, "you have a lovely telephone voice" and thankfully went to greet the PM who walked into reception just at that moment! 