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7
PLACING AND RECEIVING
CALLS
This chapter illustrates how to place and receive a variety of
calls with your 3C882 ISDN modem. The 3C882 ISDN modem
uses AT commands and S registers for call management.
This chapter covers the following:
■ Placing ISDN data calls
■ Placing a Multilink PPP call
■ Placing a TollMizer call
■ Receiving ISDN data calls
■ Placing calls using an analog phone port
■ Receiving calls using an analog phone port
■ ISDN Call Logging
Placing ISDN Data Calls
You can let your communications software send and receive
calls for you, or you can use a terminal emulator to place calls
manually. Software that communicates using AT commands
(such as HyperTerminal) is required to control the 3C882
ISDN modem. You can choose to enter these codes manually;
however they are often entered automatically by modem
communications software.
When you place a call, the B channel LED(s) flash green and
then remain lit once the call is established. (If you are
running Multilink PPP, one B channel flashes and then
remains lit. Then the second B channel flashes and it too
remains lit.)
For Macintosh users, add
&DO to the modem initialization
string of your communications software.