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Raven and PinPoint CDMA User Guide Version 1.12
AirLink Communications, Inc. Page 29 March 24, 2004
6.1 AT Mode
AT commands are used to configure the modem, command it to do something, or
query a setting.
AT commands must always be terminated by <CR> (ASCII character 0x0D).
If E=1 (Echo On), the AT command (including the terminating <CR>) will be output
before any responses defined in the next section.
Response Framing
Two settings affect the format of AT command output: V (Verbose) and Q (Quiet).
If Q=1 (Quiet On), no result codes are output whatsoever, so there is no response
generated by a (non query) command. If Q=0 (Quiet Off), result codes are output. The
format of this output if then affected by the Verbose setting.
If Quiet mode is off, the result code is affected as follows: For V=1 (Verbose mode),
the textual result code is surrounded by <CR><LF> and any AT query response is also
surrounded by <CR><LF>; for V=0, (Terse mode), a numeric result code is output with
a single trailing <CR> (no <LF> is output), while any AT query response is followed
by <CR><LF> (there is no preceding output).
For example, possible output to the AT command “AT<CR>” (assuming quiet mode is
not on) is:
0<CR> - if V=0
<CR><LF>OK<CR><LF> - if V=1
6.2 PPP Mode
In PPP mode, the modem acts as a PPP server, providing an IP address, and DNS
servers (if available) to the Host.
PPP mode is entered from the AT mode by using any of the following commands:
AT\APPP<CR>
ATDT10.0.0.1<CR>
ATDT10001<CR>
ATD#19788<CR>
CLIENT<CR>
In response to any of the preceding commands, the modem will respond with
CONNECT<CR><lf>
and is ready for the host to begin PPP negotiations.
The IP received by the host in the resulting negotiation will either be a private (non-
routable) IP or a public (network-routable) IP provided by the network, depending on
the settings of *USEPRIVATEIP [S300]. If *USEPRIVATEIP =1, the value of the
private IP an be determined beforehand by querying S110. The private IP to be used
can be defined with the command AT*PRIVATEIP=192.168.100.33 substituting the
desired IP address.