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Chapter 4 - Manual Dial and Automatic Answer
4.1 Introduction...................................................................................................................................... 36
4.2 Dialing/On-Line/Answering .............................................................................................................. 36
4.3 Automatic Leased Line Restoral Operation .....................................................................................37
4.4 Manual Dial Backup Call Termination .............................................................................................. 37
4.5 Dial Backup and Leased Line Restoral ........................................................................................... 37
4.6 Dial-Up Operation............................................................................................................................ 38
4.7 Manual Call Origination ................................................................................................................... 38
4.8 Automatic Answering ....................................................................................................................... 39
4.9 Manual Answering ........................................................................................................................... 39
4.10 Handshaking Details ....................................................................................................................... 40
4.11 Call Termination ............................................................................................................................... 40
Chapter 5 - Command Mode
5.1 Introduction...................................................................................................................................... 42
5.1.1 AT Command Editing ................................................................................................................ 42
5.1.2 Functional Modes...................................................................................................................... 43
5.2 Summary of AT Commands............................................................................................................. 44
5.3 Result Codes ................................................................................................................................... 47
5.4 Dialing Commands .......................................................................................................................... 49
5.4.1 Dialing Action Commands ......................................................................................................... 49
5.4.2 Dial Modifier Commands ........................................................................................................... 50
5.4.3 Phone Number Memory Commands......................................................................................... 53
5.4.4 Configuration and Default Storage Commands ........................................................................ 54
5.4.5 Command Response (Result Code) Commands ...................................................................... 56
5.4.6 Phone Line Conditioning Commands........................................................................................ 58
5.4.7 RS-232C Interface Control Commands .................................................................................... 61
5.4.8 Error Correction Commands ..................................................................................................... 63
5.4.9 Flow Control Commands .......................................................................................................... 66
5.4.10 Compression, Error Correction, Flow Control, Pass-Through and Pacing Commands ............ 69
5.4.11 Speed Conversion Commands .................................................................................................70
5.4.12 Immediate Action Commands ................................................................................................... 73
5.4.13 Line Probe Commands (2834 Series only) ............................................................................... 75
Chapter 6 - S-Registers
6.1 Introduction...................................................................................................................................... 78
6.2 Reading and Assigning S-Register Values ......................................................................................85
6.2.1 Examples of Assigning Values .................................................................................................. 85
6.2.2 Examples of Reading Values .................................................................................................... 85
6.3 AT Command and S-Register Summary ......................................................................................... 86
Chapter 7 - Callback Security and Remote Configuration
7.1 Introduction...................................................................................................................................... 88
7.2 Callback Feature Description .......................................................................................................... 88
7.3 Remote Configuration Description................................................................................................... 89
7.3.1 Initial Setup Procedures for Callback and Remote Configuration. ............................................ 89
7.3.2 Remote Configuration Procedures ............................................................................................92
7.4 Remote Configuration and Callback Security AT Commands ......................................................... 93
7.5 Remote Configuration/Callback Security S-Registers ..................................................................... 95
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