
Chapter 8 – Communication Commands
Carrier Detect Threshold S9
Description:
Syntax:
This command defines the amount of time the carrier detect signal stays high. The value is not
persistent.
Command syntax: ATS9=<value>
Command
ATS9=10
Possible Responses
OK
Values:
<value>
1 – 255
Value in tenths of a second
Default value is 60 (or 6 seconds)
Automatic Disconnect Delay S10
Description:
Syntax:
This command defines the duration of received-line-signal loss that the DCE tolerates. If the
duration is exceeded, the DCE disconnects. The value is not persistent.
Command syntax: ATS10=<value>
Command
ATS10=10
Possible Responses
OK
Values:
<value>
1 – 254
255
Value in tenths of a second
Default value is 14 (or 1.4 seconds)
Ignore received-line-signal loss; do not disconnect
DTMF Duration and Spacing S11
Description:
Syntax:
This command defines the DTMF pulse width for both burst and continuous DTMF. The value is
not persistent.
Command syntax: ATS11=<value>
Command
ATS11=150
Possible Responses
OK
Values:
<value>
50 – 149
150 – 199
200 – 249
250
251 – 255
Value range
Burst DTMF time of 95ms digit time with 60ms inter-digit time
Burst DTMF time of 150ms digit time with 100ms inter-digit time
Burst DTMF time of 200ms digit time with 150ms inter-digit time
Burst DTMF time of 250ms digit time with 200ms inter-digit time
Continue DTMF in ms – Equation: (value-250) x 1000
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C)
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