3Com ISDN Modem PLACING AND RECEIVING, CALLS, Placing ISDN Data Calls, ISDN Call Logging, ■ISDN Call Logging, ■Placing ISDN data calls, ■Placing a TollMizer call

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.