ITU-T RECOMMENDATION I.122 (1988)
1 Introduction
1.1 Scope
1.2 Objectives
1.3 Definitions of terms
2 Service aspects
2.1 General service characteristics
2.2 Quality of Service parameters
2.3 Individual bearer service descriptions
3 User-network interface protocol reference model
3.1 Core functions of Rec. I.441
3.2 Other user terminal functions
3.3 Network functions
3.4 Further service requirements at the user-network interface
3.5 Potential bearer services
4 Interworking requirements
4.1 Interworking between packet mode services
4.2 Support of existing terminals
4.3 Interworking with circuit mode services
5 Support of OSI connection-oriented network layer service
6 Applications
ANNEX A - Further service-related information
A.1 Introduction
A.2 Service related information
ANNEX B - General arrangement for interworking between an ISDN where I.122 bearer services are requested...
B.1 Possible scenarios
B.2 IWF logically belonging to ISDN (Recommendation I.122)
B.3 IWF logically belonging to the PSPDN (Recommendation X.25)/ISDN (Recommendation X.31)
ANNEX C - Support of network layer service (X.213) in an ISDN offering additional packet mode bearer services
C.2 C-plane enhancements
C.3 U-plane enhancements
ANNEX D - Congestion control in frame relaying service
D.1 General objectives of congestion control
D.2 User reaction to network congestion
D.3 Control action by the network congestion