Watchguard Firebox X20E Reference Manual page 56

Modem initialization strings
"" +\p+\p+\d\r\pATH "" \dAT&F OK ATE0 OK ATS0=1 OK
^^ ________________ ^^ ______ ^^ ____ ^^ ______ ^^
1
Explanation of fields
1 Specifies that the Firebox should expect nothing back from the modem at this
point in the chat.
2 Specifies that three plus characters (+) should be sent with short pauses in
between, then a 1-second delay, then a return character, a short pause, then the
characters "ATH" are sent, finally followed by a carriage return (which is not
shown, but implied). This sequence commands most modems to hang up.
3 Specifies that the Firebox should expect nothing back from the modem at this
point in the chat.
4 Send a 1-second delay followed by the characters "AT&F" to command the
modem to recall its factory-default configuration.
5 Expect "OK" back from the modem.
6 Send "ATE0" to modem, which directs it not to echo back commands characters
sent.
7 Expect "OK" back.
8 Send "ATS0=1" to direct the modem to answer incoming calls after one ring.
9 Expect back a final "OK" from the modem.
For an out-of-band management connection, the modem needs to be set up to answer the phone
when it rings, and to use hardware flow control on the serial line. The Flow Control and Modem
Initialization fields on the OOB tab enable you to make these settings.
Common initialization string values
Auto-answer
Send the string
pickup after one ring, enter
Special sequences
TIMEOUT value
The initial time-out value is 45 seconds. Once changed, the time-out setting
remains in effect until it is changed again.
EOT
The special reply string of EOT indicates that the chat program should send
an EOT character to the remote. This is normally the end-of-file character
sequence. A return character is not sent following the EOT. The EOT sequence
can be embedded into the send string using the sequence Ctrl+D.
52
2 3
x, where x = the number of rings before answering. For a
ATS0=
.
ATS0=1
4 5 6 7 8 9