Specifications

104 MultiModemISI Hybrid Series, ISIHI-2S/2U
Chapter 5—TERMINAL ADAPTER AT Commands, S-Registers, Result Codes
Data Call Commands
Use these commands to make or configure data calls.
A Answer Call
Values: none
Default: none
Forces TA to answer an incoming call. To cause the TA to autoanswer, set register S0 to a
value higher than 0.
Dn Dial
Values: string of up to 25 characters
Default: none
Causes TA to dial a telephone number (e.g., ATD785-3500 <cr>).
Hn Hang Up
Values: n = 0 or 1
Default: H0
Forces TA to go off-hook (take control of the telephone line) or go on-hook (hang up).
Since TA goes off-hook automatically when it dials, H command normally is used only to
hang up. To hang up, first escape to command mode (+++AT <cr>), then type ATH (or
ATH0) <cr>. Or, include the hang up command in the escape sequence: +++ATH <cr>.
H0 Go on-hook (hang up).
H1 Go off-hook.
In Display Product Information
Values: n = 0, 1, and 2
Default: none
Displays the following TA product information:
I0 Product ID (e.g., 247)
I1 Firmware version number (e.g., 1.00)
I2 Model number
O Return Online
Values: none
Default: none
Returns TA to online mode from the online command mode. When TA makes a data
connection, it enters online data mode. The TA typically remains in this mode until it
receives an escape sequence or until the call ends. When it detects an escape sequence,
the TA enters online command mode, where it can accept AT commands while retaining
the online connection. To return the TA to online mode from the online command mode,
enter the command ATO and press ENTER.
@CONFIG Start ConfigMenu
Values: none
Default: none
Starts TAs internal configuration utility, which allows you to customize the configuration
for your application. Enter the command while in terminal mode.