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AT Commands
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Manual Answering
For reasons of data security, it may be desirable to verbally identify a caller before allowing
connection to your computer. A telephone handset must be connected to the same telephone line
as your modem to permit manual answering.
• Place front panel Option switch 4 in the Up position (select Smart mode)
• Connect your modem to a personal computer — refer to the modem Read Me First Guide
for details
• Run a communications program and enter “local mode” or “terminal mode”
• Type: ATBx <E>
where “x” is a valid setting of the B command. The B command is used to set the
communications standard used by your modem.
• Type: AT&D2&M0 <E>
or:
Type: AT&D2&M1 <E>
Issue the &M0 command if you wish to use asynchronous communications; issue &M1 if
you wish to use synchronous communications.
• Type: AT&W <E>
The modem set up is saved.
• Place front panel Option switch 4 in the Down position (select Dumb mode)
• Place front panel Option switch 6 in the Up position (select Answer mode)
• Place front panel Option switch 3 in the Down position (stop autoanswering of incoming
calls)
If the &D2 command has been issued to your modem, your computer must raise the DTR
signal
• Press the Talk/Data button to Talk (this button is located next to the front panel Option
switches)
• When the telephone handset rings, pick it up and establish the caller identity
The person calling you must perform a manual dial (that is, he/she must dial using a
telephone handset).
• When you are ready to allow access to your computer, press the Talk/ Data button to Data
• Place the handset on-hook
At the same time, the caller must make his/her modem enter “data mode” and place his/her
handset on-hook. (Refer to Dialling with a Telephone Handset section)
The OH and CD LEDs glow when the modems connect.