Honeywell Mercury User Manual page 39

Modem Configuration (WINDOWS)
Dial Type
Dial Type selects the type of dialing the modem uses when calling-in
to another modem. Tone dialing must be available from the local
phone system before this option can be selected.
Figure 24
Dialing Speed
Dialing Speed is used to specify the duration of the tones in Dual Tone
Multi-Frequency (DTMF) dialing. The default is 95 milliseconds and
has no effect on pulse dialing. Values below 70 milliseconds can be too
fast for some telephone switching equipment.
Figure 25
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