@Impish4249 @allanb

Rotary phones were in use long after that in Canada, and probably other places, but touch-tone was also available. In the late 80s/early 90s I still had a line that would only do pulse dialing, because touch-tone dialing was an add-on charge with the phone company where I lived.

It was a significant amount; just adding touch-tone support increased the monthly bill by almost 10%. Yes, this was a BS charge, because it was just a flag they set on your account. It didn't cost them anything to provide tone dialing. They still do the same thing with caller-ID, so I don't have it. "We don't care. We're the phone company; we don't have to."

At the time, many (perhaps most) phones you could buy had push-button dialing, but there was a switch on the phone to choose pulse or tone dialing. If you set it to pulse, you'd push the 7 button, and then you'd hear 7 clicks, etc.

So kind of "hybrid dialing".