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APPENDIX C. S REGISTERS
ACTIVE Professional External Modem User’s Manual
27
S6 * Wait time for blind dialling (Range:2-255) Default : 2
Sets the length of time in seconds to pause after the modem goes off-
hook and before the modem dials the first digit of the telephone number.
The modem always pauses for a minimum of 2 seconds even if the S6
register is set to a value less than 2 seconds. The "wait for dial tone" call
progress feature (W in the dial string) will override the value in register
S6. If option ATX2 or ATX4 is in effect, this register is ignored.
S7 * Wait for carrier after dial (Range:1-255) Default : 50
Defines two delay times in seconds:
1. During call establishment, this register establishes the time that the
local modem waits for carrier from the remote modem before
hanging up.
2. Sets the length of time that the modem waits when the "wait for dial
tone" call progress feature (W in the dial string) is in effect.
S8 * Pause time for dial delay Default : 2
Sets the length of time in seconds to pause when the modem encounters
the "pause during dial" call progress feature, i.e., the comma.
S9 * Carrier detect response time (Range:1-255) Default : 6
Determines the duration in tenth of a second which a carrier signal must
be present before the modem recognizes it as a carrier. As this time is
increased, there is less chance to detect a false carrier due to noise from
the telephone line.
S10 * Lost carrier to hang up delay (Range:1-255) Default : 14
Sets the length of time in tenth of a second which the modem waits
before hanging up after a loss of carrier. This allows for a temporary
carrier lost without causing the local modem to disconnect. When
register S10 is set to 255, the modem functions as if a carrier is always
present.
The actual interval the modem waits before disconnecting is the value
in register S10 minus the value in register S9. Therefore, the S10 value
must be greater than the S9 value or else the modem disconnects before
it recognizes the carrier.
S11 * DTMF tone duration (Range:50-255) Default : 95
Sets the duration in millisecond of tones in DTMF (Dual Tone Multi
Frequency) dialling. This value has no effect on pulse dialling.
S12 * Escape code guard time Default : 50
Sets the time delay in fiftieth of a second required immediately before
and after entering the escape code. The time interval between the
sending of the first and second, or the second and third escape code
characters must be less than the value of the guard time.
S13 Reserved