Rec. ITU-T V.25 ter (08/1995) SERIAL ASYNCHRONOUS AUTOMATIC DIALLING AND CONTROL
FOREWORD
CONTENTS
SUMMARY
KEYWORDS
1 Introduction and scope
2 Normative references
3 Definitions and abbreviations
4 Physical layer
    4.1 Circuits
    4.2 Character formatting
    4.3 Data rates
5 Syntax and procedures
    5.1 Alphabet
    5.2 DTE commands lines
        5.2.1 Command line general format
        5.2.2 Command line editing
        5.2.3 Command line echo
        5.2.4 Repeating a command line
        5.2.5 Types of DTE commands
        5.2.6 DTE command syntax
    5.3 Basic syntax commands
        5.3.1 Basic syntax command format
        5.3.2 S-parameters
    5.4 Extended syntax commands
        5.4.1 Command naming rules
        5.4.2 Values
        5.4.3 Action commands
        5.4.4 Parameter commands
        5.4.5 Additional syntax rules
    5.5 Issuing commands
    5.6 Executing commands
        5.6.1 Aborting commands
        5.6.2 Handling of invalid numbers and S-parameter values
    5.7 DCE responses
        5.7.1 Responses
        5.7.2 Extended syntax result codes
        5.7.3 Information text formats for test commands
    5.8 Manufacturer-specific characteristics
        5.8.1 Extensions
        5.8.2 Behavioural differences
6 Functions
    6.1 Generic DCE control
        6.1.1 Reset to default configuration
        6.1.2 Set to factory-defined configuration
        6.1.3 Request identification information
        6.1.4 Request manufacturer identification (+GMI)
        6.1.5 Request model identification (+GMM)
        6.1.6 Request revision identification (+GMR)
        6.1.7 Request product serial number identification (+GSN)
        6.1.8 Request global object identification (+GOI)
        6.1.9 Request complete capabilities list (+GCAP)
        6.1.10 Country of installation, (+GCI)
    6.2 DTE-DCE interface commands
        6.2.1 Command line termination character
        6.2.2 Response formatting character
        6.2.3 Command line editing character
        6.2.4 Command echo
        6.2.5 Result code suppression
        6.2.6 DCE response format
        6.2.7 Result code selection and call progress monitoring control
        6.2.8 Circuit 109 (Received line signal detector) behaviour
        6.2.9 Circuit 108 (Data terminal ready) behaviour
        6.2.10 Fixed DTE rate (+IPR)
        6.2.11 DTE-DCE character framing (+ICF)
        6.2.12 DTE-DCE local flow control (+IFC)
        6.2.13 DTE-DCE local rate reporting (+ILRR)
    6.3 Call control
        6.3.1 Dial
        6.3.2 Select tone dialling (command)
        6.3.3 Select pulse dialling (command)
        6.3.4 Incoming call indication
        6.3.5 Answer
        6.3.6 Hook control
        6.3.7 Return to online data state
        6.3.8 Automatic answer
        6.3.9 Pause before blind dialling
        6.3.10 Connection completion timeout
        6.3.11 Comma dial modifier time
        6.3.12 Automatic disconnect delay
        6.3.13 Monitor speaker loudness
        6.3.14 Monitor speaker mode
    6.4 Modulation control commands
        6.4.1 Modulation selection (+MS)
        6.4.2 Modulation automode control (+MA)
        6.4.3 Modulation reporting control (+MR)
        6.4.4 V.18 Selection (+MV18S)
        6.4.5 V.18 Reporting control (+MV18R)
        6.4.6 V.18 Answering message editing (+MV18AM)
        6.4.7 Order of probes (+MV18P)
    6.5 Error control commands
        6.5.1 Error control selection (+ES)
        6.5.2 Break handling in error control operation (+EB)
        6.5.3 Selective repeat (+ESR)
        6.5.4 32-bit frame check sequence (+EFCS)
        6.5.5 Error control reporting (+ER)
        6.5.6 Call termination buffer management (+ETBM)
    6.6 Data compression commands
        6.6.1 Data compression (+DS)
        6.6.2 Data compression reporting (+DR)
    6.7 DCE testing
Appendix I Informative references
Appendix II Summary of basic and extended format commands
Appendix III DCE configuration, dialling, negotiation and reporting, example session
Appendix IV Encapsulation of V.25 ter messages in V.25 bis DCE
IV.1 Scope
IV.2 Encapsulation of V.25 ter messages
IV.3 Applicable V.25 ter commands
IV.4 Applicable V.25 ter responses
Appendix V Areas reserved for further study