Answering A Call; Manual Answer; At Command Answer (A); Autoanswer (S0) - Black Box 325 User Manual

MODEM 325 AND MODEM 325 CARD

6.8 Answering a Call

There are three ways to answer a call for data connection:
• Manual
• AT command
• Autoanswer
The most common is autoanswer.
6.8.1 M A
ANUAL NSWER
When the phone rings, answer by changing the front-panel switch from TALK to DATA after the first
ring.
6.8.2 AT C A
OMMAND
The modem can be made to go off hook in the answer mode by entering ATA when the phone rings.
This commands the modem to go to the answer mode and connect.
6.8.3 A (S0)
UTOANSWER
Autoanswer is controlled by register S0. S0 determines which ring the modem answers on. S0 can be
loaded with a value between 1 and 255 for autoanswer.
Entering ATS0=0 disables the autoanswer feature. Decide which ring the modem is to answer on and
set S0 to that decimal value.
If the &D2 option is active, the DTR signal must be on for autoanswer to work.
When these steps have been taken, the modem automatically answers on the selected ring and connects
with the calling modem. This allows two computer systems to exchange data via unattended modems.
Actual data transfers may be controlled by the software used by both computers.

6.9 Terminal-Interface Commands

The terminal interface is the connection between the modem and its associated data terminal (for
example, your computer). Terminal-interface commands control the action of the modem and the
terminal in response to the signals being exchanged on the interface.
6 6
(A)
NSWER
NOTE