When I was much younger, circa 1994, I used my Icom radio to scan the business band part of VHF, around 147 to 158 mHz. I discovered a couple of frequencies where folks apparently had a radiophone (not sure the exact term for it) and a person would talk to someone...it was half-duplex, so I could only hear one side of the conversation. Never found the frequency where the other half would take place on. Anyways, I remember a couple of times it appeared that therapists were holding therapy sessions over the radio. The conversations were sort of interesting, but I remember a lot of me felt that it was inappropriate to listen in. Wondering if anyone else heard radiophone traffic around this time frame? Clearly, once cell phones became widespread the conversations disappeared from VHF.