3Com 56K Other Operating Systems, If You Are Using MS-DOS, Command and Online Modes, Guard tone

	Setting up your ISP information	1-16
	Other Operating Systems	1-17
	If You Are Using Windows 3.x	1-17
	If You Are Using MS-DOS	1-17
	If You Are Using UNIX, Linux, or AIX	1-17
2 USING THE AT COMMAND SET
	Overview	2-1
	General rules for using AT commands	2-1
	Basic AT commands	2-2
	Using S-Registers	2-2
	Displaying S-Register settings	2-3
	Setting an S-Register	2-3
	Getting a list of S-Registers	2-4
	Understanding bit-mappedS-Registers	2-4
3 MODES OF OPERATION
	Command and Online Modes	3-1
	Entering Online Command Mode	3-2
	Returning to Online Mode	3-2
	Controlling Local Echo	3-3
	Command-Mode Local Echo	3-3
	Online-Mode Local Echo	3-3
	Data and Fax Modes	3-4

4DIALING, ANSWERING, AND HANGING UP

Dialing	4-1
Dial options	4-1
Carrier Loss Redial	4-3
Answering Calls	4-4
Force Answer Mode	4-4
Auto Answer	4-4
Hanging up	4-5
Making International calls	4-5
Handshaking options	4-5
Guard tone	4-6