Multitech CommPlete MT5634HD8, User Manual, Page: 26 / 99

MT5634HD8 User Guide
20 CommPlete Communications Server
! Flash On-Hook{xe "AT commands:! (exclamation mark)"}{xe "Flash
On-Hook command"}
Some switchboard systems react to a momentary on-hook condition. Insert an excla-
mation mark into the dialing command to cause the modem to “flash” on-hook for
half a second, just as if you had pressed the switch hook on a telephone set for half
a second. (With U.K. models, the exclamation mark causes the modem to flash on-
hook for 90 milliseconds.)
For example, to flash on-hook to transfer to extension 5678 after dialing the number
555-1234, type
ATDT5551234,,!5678
. The commas cause a 4-second pause.
$ Detect Call Card Tone{xe "Quiet Answer command"}{xe "AT
commands:@"}
Use the $ command to dial services that require you to enter your call card number
after a tone. The $ character in the dialing string causes the modem to pause and
wait for an AT&T call card “bong” or a 1600 Hz tone. When the modem detects the
tone, it processes the rest of the dialing string. If it does not detect the tone within
the time set in register S7, the modem stops processing the dial string with a
NO
CARRIER
message. Pressing any key also terminates the $ command.
@ Quiet Answer{xe "Quiet Answer command"}{xe "AT commands:@"}
Use the @ command to access a system that does not provide a dial tone. The @
command causes the modem to wait before processing the next character in the dial-
ing string. The wait is for one or more rings back followed by five seconds of silence.
For example,
ATDT5551212@6313550
causes the modem to dial the first number
(555-1212), then wait for the time specified in register S7{xe "S-registers:S7"}{xe
"
abort timer"} for at least one ringback and five seconds of silence. If the modem
detects a busy signal{xe "busy signal"}, it hangs up and generates a
BUSY
result code.
If it does not detect five seconds of silence, it hangs up and generates a
NO ANSWER
result code. If it does detect five seconds of silence, it dials the second number (631-
3550).
^ Disable Data Calling Tone Transmission{xe "Disable Data Calling Tone
Transmission command"}{xe "AT commands:^"}
Use the ^ command to disable the transmission of data calling tones.
In the following example, the ^ command is used to tone dial 555-1212 and suppress
data calling tone transmission.
ATDT^5551212
Phone Number Memory Commands
The modem can store up to four telephone numbers in nonvolatile memory{xe
"NVRAM (nonvolatile random access memory)"}{xe "memory:nonvolatile
(NVRAM)"}. You can store the numbers with the &Z command and dial them with
the ATDS command.