Interesting! I always assumed that the keypads were introduced at the same time as touch tones. The era of keypad pulse phones must have been very brief as I'm sure I never saw one. Some early keypad phones lacked the * and # keys. Perhaps these were pulse dialed? Must research...
I have such a phone at home, we still use it every day. And it does have * and # keys, but dials the same as the older phones (the keys differ only in length of sound, not tone).
