Telebit T3000 Reference Manual page 114

S9 Carrier Redetect Time
Range: 1-255
Default: 6 (600 milliseconds)
The S9 register contains the length of time that the
modem waits before reconnecting to the telephone
line when a carrier has been detected after it has been
lost. Each count represents 100 milliseconds.
S10 Carrier Loss Disconnect Time
Range: 1-255
Default: 14 (1.4 seconds)
The S 10 register contains the amount of time the
modem waits after the carrier has been lost before
disconnecting the line. Each count represents 100
milliseconds. Setting register SlO to 255 causes the
modem to wait until explicitly told to disconnect.
S11 Touch Tone Timing
Range: 50-255
Default: 70 (milliseconds)
The S 11 register defines the time in milliseconds of
the duration and spacing of the tones in tone dialing.
The S 11 register does not affect pulse dialing, which
is fixed at 100 milliseconds per pulse.
S12 Escape Sequence Guard Time
Range: 0-255
Default: 50 (1 second)
The escape sequence guard time is the time delay
required immediately before and after entering the
escape sequence. The guard time is in units of 20
milliseconds (1/50 second).
AT Register Descriptions 6-7