White Paper

July 1999

 

0203-0799-A

 

Prepared by

 

Portable Marketing Services

 

Compaq Computer Corporation

 

Contents

 

Using Modem Commands ..........

3

Entering a Command.................

3

Editing and Executing a

 

Command...............................

3

Omitting a Parameter in a

 

Command Line.......................

3

Repeating a Command..............

3

Understanding Result Codes.....

4

Using Online Mode ....................

4

Escaping from an Online

 

Session to the Command

 

Mode ......................................

4

Creating a Command Mode

 

Shortcut..................................

4

Creating a Command Mode

 

Icon ........................................

4

AT Command Set ........................

6

AT Data Command Set

 

Summary................................

6

Result Code Summary...............

7

AT Command Descriptions........

9

S Registers.................................

24

Setting S Register Default

 

Values ..................................

24

Modifying an S Register...........

24

Reading an S Register.............

24

S-Register Summary ...............

25

S-Register Descriptions ...........

26

Compaq Global Mini PCI 56k (V.90) Modem by 3Com

Compaq Global Mini PCI 10/100 LAN + 56k (V.90) Modem by 3Com

Modem Commands

Abstract: This document includes comprehensive coverage of the following topics:

∙AT command set used to control modem functionality at an advanced level

∙S-registers used to control modem functionality at and advanced level