Make Tone dialing faster

If you can use tone dialing, the amount of time it takes to dial can be changed using the S11 register. It gives the duration (in 100hundreds of a second) to send each tone while dialing. The default is usually 95 (almost a second.) How fast you can dial depends on the phone company's switching equipment which handles your line. The minimum duration is 50, almost twice as fast, and that speed often works.

ATZ        # reset to default profile
ATS11=50   # fastest possible dialing, use a higher number if it doesn't work
AT&W   # write to default profile