Appendix 2 At Command Set - TRENDnet TFM-PCIV92A User Manual

Appendix 2 AT command set
Executing commands
Your modem is in Command Mode upon power-on and is ready to receive and execute AT commands. The
modem remains in Command Mode until it makes a connection with a remote modem. Commands may be
sent to the modem from an attached terminal or a PC running a communication program. This modem is
designed to operate at common DTE speeds ranging from 115.2 Kbps to 300 bps. All commands and data
must be issued to the modem using one of the valid DTE speeds.
AT commands and format
All commands must begin with the AT prefix, followed by the command letter and ended with the ENTER key.
All default settings are printed in bold text. Spaces are allowed in the command string to increase command
line readability but are ignored by the modem during command execution. All commands may be typed in
either upper or lower case, but not mixed. A command issued without any parameters is considered as
specifying the same command with a parameter of "0".
Example: ATL [ENTER]
This command causes your modem to lower its speaker volume.
AT Command Summary
AT
A/ Repeat last command
A Answer
B0 Select V.22/V.21
B1 Select B212A/B103
B15 Select V.21 when the modem is at 300 BPS
B16 Select Bell 103J when the modem is at 300 BPS
D Dial
0 - 9 Dialing digits
ABCD*# Tone dial characters
L Redial last number
P Pulse dial
T Tone dial
V The modem switches to speakerphone mode and dials the number
R The modem goes into answer mode directly after finish dialing
S=n Dial stored telephone number n
W Wait for dial tone
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Command prefix
Rev. 1.00.2.1.63