1 Introduction and scope
2
Definitions
3
Abbreviations
4
References
5
Conventions
6
Overview
6.1 Phase 1 V.140 signature transmission and acquisition
6.2 Phase 2 Channel characterization
6.3 Phase 3 Capability
exchange and mode selection
6.4 Using V.140 to switch among multimedia operation modes
6.5 Interoperability with terminals that do not support V.140
6.6 Interworking with PSDSNs
7
Network types
8
Signals
8.1 Data stream model
8.2 Phase 1 V.140 Signature Block and Compatible Protocol Field
8.2.1 Terminals attached to aligned channels
8.2.2 Terminals attached to non-aligned
channels
8.2.3 Signature Pattern (SP) field
8.3 Phase 2 Alignment probing
8.3.1 Phase 2a Initial values
8.3.2 Phase 2b After SP acquisition
8.3.3
Phase 2c After RSP acquisition
8.4 Phase 3 signals
8.4.1 roleAndCapability PDU
8.4.2 modeSelect PDU
8.4.3 youChoose PDU
8.4.4 modeSelectAcknowledge PDU
8.4.5 terminate PDU
8.5 Phase 3 HDLC framing
8.5.1 Format convention
8.5.2 Flag sequence
8.5.3 Distinguishing sequence
8.5.4 Information field
8.5.5 Frame check sequence field
8.5.6 Transparency
9
Procedures
9.1 Channel establishment
9.1.1 Interactions with ISDN D-channel
signalling
9.2 Phase 1 Signature
transmission and acquisition
9.2.1 Transmitter procedure
9.2.2 Receiver procedure
9.3 Phase 2 Determination of network characteristics and bit
alignment
9.3.1 Phase 2a Transmitting and acquiring SP
in each subchannel
9.3.2 Phase 2b Reflected SP and alignment
recovery
9.3.3 Determination of network characteristics
and bit-alignment from received SP/RSP
9.3.4 Phase 2c
Concluding Phase 2 and proceeding to Phase 3
9.4 Phase 3 Role arbitration, capability exchange, and mode
selection
9.4.1 roleAndCapability transmission
9.4.2 Initiator procedure
9.4.3 Responder procedure
9.4.4 General Phase 3 procedures
9.5 Entering selected mode
10 Resuming V.140 from a selected
mode
Annex A ASN.1 definition of Phase 3 PDU values