3Com 3C882 manual Placing and Receiving, Placing Isdn Data Calls

6	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 56K TollSaver call

■Receiving ISDN data calls

■Placing calls using an analog phone port

■Receiving calls using an analog phone port

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 is required to control the 3C882 ISDN modem. You can 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, 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 then remains lit.)

For Macintosh users, add &DO to the modem initialization string of your communications software.