The song tells the story of a lovelorn young man who anticipates getting in touch with his beloved over the phone. He requests that the telephone operator connect the call, but not to listen in. He also says that he's willing to get in touch with the FBI and the CIA in order to locate the girl he's interested in speaking to.
"Hot Line" was The Sylvers' second biggest hit, peaking in early 1977 at number 5 on the Billboard Hot 100 chart, number 4 on the Cash Box chart, and number 3 on the R&B charts. Billboard ranked the song as the 25th biggest hit of 1977.
On the WLS survey in Chicago, the song reached number one for two weeks. It was their 11th biggest song of the year.