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ETS 300 007 : 20001
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INTEGRATED SERVICES DIGITAL NETWORK (ISDN); SUPPORT OF PACKET-MODE TERMINAL EQUIPMENT BY AN ISDN
Hardcopy , PDF
English
Foreword
Introduction
Normative references
1 Scope
2 General service aspects
3 Reference configurations
3.1 Configuration when accessing PSPDN services
(Case A)
3.2 Configuration for the ISDN virtual circuit
service (Case B)
4 Service aspects
4.1 Access to PSPDN services (Case A)
4.2 Access to the ISDN virtual circuit service
(Case B)
4.3 Compatibility checking
5 Addressing and routing aspects
5.1 Terminal interface selection
5.2 Access to PSPDN services (Case A)
5.3 Access to the ISDN virtual circuit service
(Case B)
6 Interworking with dedicated networks
6.1 Circuit-mode access to PSPDN services (Case A)
6.2 Access to PSPDNs via virtual circuit service
(Case B)
7 Packet communications at the S/T reference point
7.1 Outgoing access
7.2 Incoming access
7.3 Virtual call establishment and release
7.4 Call clearing
7.5 Access collision
8 Terminal adaptor functionalities
8.1 General
8.2 Physical interfaces
8.3 Access through the B-channel
8.4 Access through the D-Channel
8.5 Access through the B- and D-channel
8.6 Test loops
Appendix I (informative): B-channel TA acting on layer
2 and 3 of CCITT
Recommendation X.25
I.1 Introduction
I.2 Call control
Appendix II (informative): Interconnection of
packet-mode TE2s which use
the circuit-mode bearer
service of the ISDN
Appendix III (informative): Example message flow
diagrams and example
conditions for cause mapping
Appendix IV (informative): D-channel TAs requiring full
protocol termination in the TA
IV.1 Introduction
IV.2 Call control
Annex A (informative): States applicable to packet mode
access connection (case B
services)
A.1 Access connection states at the user side
of the interface
A.2 Access connection states at the network
side of the interface
Annex B (normative): Messages for control of packet-mode
access connections
B.1 Alerting
B.2 Call proceeding
B.3 Connect
B.4 Connect acknowledge
B.5 Disconnect
B.6 Progress
B.7 Release
B.8 Release complete
B.9 Setup
B.10 Status
B.11 Status enquiry
Annex C (normative): Information elements for the
control of packet-mode access
connections
C.1 Protocol discriminator
C.2 Call reference
C.3 Message type
C.4 Other information elements
C.5 Redirecting number
Annex D (informative): Example of ISDN CCITT
Recommendation X.25 packet-mode
bearer service access on the
D-channel through a NT2 with
frame handling Functions
History
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