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Netopia ISDN Modem User’s Guide
Here's a dial string example:
AT V1 D 14085551212 <Enter>
AT
Attention
V1
Turn on long form repor ting so the result
codes will show words instead of numbers
D
Dial an ISDN digital connection to the
telephone number that follows
14085551212
Telephone number
<Enter>
Pressing the Enter or Return key sends the
command to the Netopia ISDN Modem
Answering a call
Your ISDN modem can answer a call automatically, or you can
manually instruct the modem to answer the line when it rings.
Manual answering.
When an incoming call is detected, the RING
result code will appear on the computer screen. By typing ATA and
pressing the Return key, you instruct the modem to answer an
incoming call manually. Your modem then attempts to connect to
the remote modem. If the two modems are compatible, your modem
receives a carrier signal from the remote modem, and a CONNECT
response appears on the screen.
Automatic answering.
You may use the modem to answer
incoming calls automatically. Enable auto-answer by setting S
register O to 1 (ATS0=1). Your ISDN modem can answer incoming
calls unattended if you have the proper communications software,
such as bulletin board software or an electronic mail system.
Disabling auto-answer.
You can disable auto-answer by setting the
value of S register O to the default 0 (ATS0=0). When the modem
first receives power, is reset, or the factor y settings are recalled,
the S registers return to the stored settings. When SO=0, your
modem sends the RING result code to your computer screen when
an incoming call is detected, but it does not answer the call
automatically.