User Manual

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ISI5634PCI/4/8 User Guide
ing online. Type +++AT and up to six command characters, then press ENTER. Used
mostly to issue the hang-up command: +++ATH<CR>.
Command: %%%AT<CR>Remote Configuration Escape Sequence
Values: n/a
Description: Initiates remote configuration mode while online with remote modem. The remote
configuration escape character (%) is defined in register S13.
Controlling DTMF Functionality with the command +FCLASS=
The +FCLASS= command controls DTMF functionality and is used as follows.
1. Enter the command AT+FCLASS=8 <cr> to the modem.
2. Call into modem with phone. A >r (“arrow r”), incoming ring indication) is displayed, followed by
OK . The modem is now in Online Voice Command mode, allowing DTMF characters to be passed
through from the remote phone. The characters is displayed as shown below:
AT+FCLASS=8
OK
R is Ring
/
I ~
The Data link escape character (>), and the ‘start of DTMF tone shielding’ character (/) are both output
once a button is pressed. The DTMF digit will continue to be output along with a > until the button is
released, then another > is output along with a ‘DTMF transitions to off’ (~) character. Silence on the line
is indicated with a (>s) displayed.