Compaq Armada 1500 - Page 176

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C-6 Modem Commands
Table C-2 Continued
Command Description
&Tn Test Command Selection. AT&Tn selects one of eight test commands.
Parameters: n = 0, 1, 3, 6
n = 0 Terminates any test in progress
n = 1 Initiates local analog loopback. If a call is in progress, an error message is returned
n = 3 Local digital loopback test
n = 6 Remote digital loopback test. To work properly, both modems must be on-line with
error control disabled.
&V View Current Configuration. AT&V displays the current configuration of S registers and
commands.
&W Store Current Configuration. &W stores certain command options and S-register values into
the modem’s nonvolatile memory. This profile is restored on an ATZ command or a power-
up reset.
&Zn Store Telephone Number. &Zn stores up to four dialing strings in the modem’s nonvolatile
memory for later dialing. The format for the command is &Zn=“stored number”, where n is
the location 0 - 3 to which the number may be written. The dial string may contain up to 40
characters. ATDS=n dials using the string stored in location n.
\Nn Error Control Mode. AT\Nn selects the protocol used by the modem when sending or
receiving data.
Parameters: n = 0 - 4
n = 0 Buffer mode (no error control)
n = 1 Direct mode (no error control)
n = 2 MNP (Microcom Networking Protocol) or disconnect
n = 3 V.42, MNP, or buffer mode (default)
n = 4 V.42 or disconnect
\Qn Local Flow Control Selection.
Parameters: n = 0, 1, 3
n = 0 Disable flow control
n = 1 XON/XOFF software flow control
n = 3 RTS/CTS to DTE (Data Terminal Equipment)
\Vn Protocol Result Code. AT\Vn selects display of protocol connection.
Parameters: n = 0, 1
n = 0 Disable protocol result code appended to DCE (Data Communications Equiptment)
speed
n = 1 Enable protocol result code appended to DCE speed (default)