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Page 478 of 894 NT7D16 Data Access card
553-3001-211 Standard 2.00 September 2004
For the purposes of this document, when illustrating the prompt/response
sequences, the bold type is what the user enters on the keyboard. All other
type represents the DAC output. Likewise, “xxxxxxx,” “yyyyyyy,” or
“zzzzzzz” represents numbers entered by the user, or dialed by the DAC, and
in no way indicates the absolute character limit. The number of characters is
dependent on the feature activated (Auto Dial, Speed Call, for example).
Also, for simplicity purposes, all Result messages are shown in Verbose code.
See Table 154 on page 475 for a complete list of the Verbose and Numeric
codes. See Features and Services (553-3001-306) for a complete description
of the features operating.
S registers
These commands allow the user to access various dialing parameters. The
user can determine the present parameter setting, and alter the parameter.
These parameters are grouped into a set referred to as the S registers.
ATH P Hang up voice call
ATQ n Result code (n = 0, 1; if n = 0, result codes are sent)
ATV n Verbal result (n = 0, 1; if n = 0, numeric codes are sent)
ATX n Result code selection (n = 0, 1; if n = 1, extended results)
ATS n Read S register (n = number of S register to read)
ATS n= x Write S register (n = S register number; x = new value)
ATZ Soft reset (reset to default parameters)
ATC n Carrier detect (n = 0, 1; if n = 1, carrier detect is enabled)
ATE n Echo (n = 0, 1; if n = 1, commands will echo back to terminal)
ATTSP! Transparent mode
Table 155
AT dialing commands (Part 2 of 2)
Command Description
Note 1: To use AT dialing, enter CTRL-z at carriage return (<CR>) when the port is idle.
Note 2: Follow each command (except A/) by a carriage return (<CR>) to execute it.