Sounds like 1800 reverse where you could send a short 2-3 second message that’s supposed to be your name. The other person would get an option to receive a cal

Sounds like 1800 reverse where you could send a short 2-3 second message that’s supposed to be your name. The other person would get an option to receive a call from <whoever> for $5, but usually <whoever> is the name or code of a location to be picked up. I must have done this 100 times as a kid. Once an angry man clued onto it, switched my line across and told me off. This is back in the days where mobile calls were expensive and very few kids had phones.