1. INTRODUCTION
1.1 Facsimile Terminals
1.2 Facsimile DCE
1.3 Scope
2. OVERVIEW
2.1 Service Class 1
2.2 Service Class 2
2.3 Service Class 3 (for further study)
3. NORMATIVE REFERENCES
4. DEFINITIONS
5. FACSIMILE DTE-DCE INTERCHANGE CIRCUITS
5.1 Communication Link Data Rates
5.2 Asynchronous to Synchronous Conversion
5.3 Flow Control
5.4 Serial Data Interchange Circuits
5.4.1 Mandatory Circuits
5.4.2 Optional Circuits
5.4.3 Optional Circuit Behaviour
6. Autodialer Services
6.1 Command Syntax
6.1.1 Character Set and Format
6.1.2 DTE Command Lines
6.1.3 Basic Command Syntax
6.1.4 Extended Command Syntax
6.1.5 Extended Command Parameter Values
6.1.6 Issuing Commands
6.2 Command Execution
6.2.1 Command Execution Time
6.2.2 Aborting Commands
6.3 DCE Response Syntax
6.3.1 Information Text Responses
6.3.2 Result Code Responses
6.4 Capabilities Identification and Control
6.5 Call Answering
6.6 Call Origination
6.7 Call Termination
6.8 DCE Autodialer Result Codes
6.9 Serial Port Flow Control
6.10 Serial Port Rate Control
6.10.1 Autobaud Operation, +FPR=0
6.10.2 Fixed Rate Operation, +FPR>0
6.11 Data Stream Transparent Commands
6.11.1 DTE to DCE streams
6.11.2 DCE to DTE streams
7. FACSIMILE CLASS 2 SERVICES
7.1 Connection
7.1.1 Answer Connection
7.1.2 Originate Connection
7.2 Configuration
7.2.1 Configuration and Identification of T.30 Options
7.2.2 Configuration and Identification of T.30 Procedure
        Parameters
7.2.3 Configuration of Answer Behavior
7.3 Session Status Reporting
7.4 Phase C Data Transfer
7.5 Phase C Data Error Checking
7.6 Phase C Data Conversion
7.7 T.30 Error Correction Mode
7.8 Non-standard Facilities
7.9 Transition to Service Class 1
7.10 Procedure Interrupt Negotiation
7.11 2400 bp negotiation
7.12 Packet Protocol
8. SERVICE CLASS 2 COMMANDS and RESPONSES
8.1 Summary of Commands and Responses
8.1.1 Service Class 2 Action Commands
8.1.2 Service Class 2 DCE Responses
8.1.3 Service Class 2 Parameters
8.1.4 Service Class 2 Optional Parameters
8.1.5 Service Class 2 Transparent Data Commands
8.1.6 Service Class 2 Single Character Commands
8.2 Service Class Identification and Selection
8.2.1 Service Class Indication, +FCLASS?
8.2.2 Service Class Capabilities, +FCLASS=?
8.2.3 Service Class Selection, +FCLASS=
8.2.4 Request DCE Identification, +FMI?, +FMM?, +FMR?
8.3 Facsimile Service Class 2 Action Commands
8.3.1 Originate Command, ATD
8.3.2 Answer Command, ATA
8.3.3 Data Transmission, +FDT
8.3.4 Data Reception, +FDR
8.3.5 Session Termination, +FKS
8.3.6 Initialize Facsimile Parameters, +FIP[=]
8.4 Facsimile Service Class 2 DCE Responses
8.4.1 T.30 Phase A Responses
8.4.2 T.30 Phase B Negotiation Responses
8.4.3 T.30 Phase C Page Reception Response, +FPS
8.4.4 T.30 Phase D Post Page Responses
8.4.5 Call Termination Status, +FHS
8.5 Facsimile Service Class 2 Parameters
8.5.1 T.30 Session Parameters
8.5.2 T.30 Procedure Control Parameters
8.5.3 DTE-DCE Interface Parameters
8.6 Session Message Report Responses
Annex A (informative) Service Class 2 Parameter and
        Subparameter Values
Annex B (informative) Service Class 1 and Service Class 2
        Interworking
Annex C (informative) Service Class 2 Example Sessions
Annex D (informative) Alphabetic Index of Commands,
        Parameters and Responses