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
2USING 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-mapped S-Registers .............................................. 2-4
3MODES 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