During an e-skip last summer, I only heard part of an ad and a phone number. I called the phone number and asked where they are located, and if they had advertised on the radio station [frequency]. Then I asked what the call letters were, and told them that I am in New Jersey and I just heard that phone number and wanted to know what station I was picking up. They either were really impressed or thought I was weird for calling them. But I'd do that to identify an e-skip catch.