4 ms·
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
by rootbear 11y ago
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...
- kuschku 11y agoI 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).