1 Introduction and scope
2
References
2.1 Normative references
2.2 Informative 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)
6.2.14 +ICLOK Select Sync Transmit Clock Source
6.2.15 +ILSD Select Long Space Disconnect Option
6.2.16 +IDSR Select
Data Set Ready Option
6.2.17 +IRTS Select Synchronous Mode RTS Option
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
6.3.15 +ASTO Store Telephone Number
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)
6.5.7
+EWIND Window Size
6.5.8 +EFRAM Frame Length
6.6 Data compression commands
6.6.1 Data compression (+DS)
6.6.2 Data compression reporting (+DR)
6.7 DCE testing
6.7.1 List of Test Commands and Parameters
6.7.2 Test Commands and Parameters
Annex A – Procedure for DTE-controlled call negotiation
A.1 Introduction
A.2 Additional references and definitions
A.3 Functions
A.4 Definitions and conventions
A.5 Commands
A.5.1 V.8 and V.8 bis operation controls, +A8E
A.5.2 Send V.8 menu signals
A.5.3 Send V.8 bis signal and/or message(s)
A.6 V.8 signal indications
A.6.1 CI signal indication, +A8I
A.6.2 Calling tone indication, +A8C
A.6.3 Answer signal indication, +A8A
A.6.4 V.8 negotiation complete, +A8J
A.6.5 V.8 menu report, +A8M
A.6.6 V.8 bis
signal and message reporting
A.7 V.8 origination procedures
A.7.1 Configuration before the Dial command
A.7.2 Operation after dialling is completed
A.7.3 Answering signal detection
A.7.4 V.8 abort
A.7.5 CM signal generation
A.7.6 JM signal detection
A.7.7 Transition to communications
A.8 V.8 Answer procedures
A.8.1 Configuration before the Answer command
A.8.2 Operation after the Answer command
A.8.3
Calling signal detection
A.8.4 JM signal generation
A.8.5 V.8 abort
A.8.6 Transition to communications
A.9 V.8 bis procedures
A.9.1 Initiation
A.9.2 Reception
A.9.3 Transmission
A.9.4 Termination
A.10 Sample sessions
A.10.1 V.8 origination, connect as V.34 transmit
and receive data
A.10.2 V.8
answer, preconfigure for facsimile, but adaptively connect as a V.34 data modem
A.10.3 V.8 bis
sample session, based on Figure II.4/V.8 bis
Appendix I – Summary of basic and extended format commands
Appendix II – DCE configuration, dialling, negotiation and reporting, example
session
Appendix III – Encapsulation of V.25 ter
messages in V.25 bis DCE
III.1 Scope
III.2 Encapsulation of V.25 ter
messages
III.3 Applicable V.25 ter
commands
III.4 Applicable V.25 ter
responses
Appendix IV – Areas reserved for further study