GR 145 CORE : ISSUE 2

Preface
1. Introduction
1.1 General
1.2 Purpose and scope
1.3 Alternative arrangements
1.4 Reason for reissue
1.5 Organization
2. Interconnection types
2.1 Description types
2.1 Description
2.2 Conventions
2.2.1 General
2.2.2 Basic conventions
2.2.3 Basic concepts
2.2.4 Automatic message accounting recording requirements
2.3 Type 1 interconnection
2.3.1 General
2.3.2 Incoming calls
2.3.3 Outgoing calling
2.3.4 Variation
2.3.5 End office connection
2.3.6 Ancillary connection
2.4 Type 2A interconnection
2.4.1 General
2.4.2 Incoming calling
2.4.3 Outgoing calling
2.4.4 Variation
2.4.5 Tandem connections
2.4.6 IC access connection
2.5 Type 2B interconnection
2.5.1 General
2.5.2 Incoming calling
2.5.3 Outgoing calling
2.5.4 Variation
2.6 Type 2C interconnection
2.7 Type 2D interconnection
2.7.1 Operator services switch connection
2.8 Type S interconnection
3. Interconnection protocols
3.1 General
3.1.1 Inband
3.1.2 Out of band
3.2 Point of interface protocol definitions
3.2.1 Directionality
3.2.2 Signaling protocols
3.3 Type 1 interconnection call protocols
3.3.1 Outgoing call treatment
3.3.1.1 Description
3.3.1.2 Specific example of a call
3.3.1.3 Timing requirements
3.3.1.4 Error treatment
3.3.2 Type 1 WSP to LEC incoming call for completion to a DN in
         the LEC local network area, or through the LEC network to
         a FGA, FGB, or FGC IC to another landline LEC Associated
         with the local network area, or to another WSP POI located
         in the local network area
3.3.2.1 Description
3.3.2.2 Specific example of a call
3.3.2.3 Variations
3.3.2.4 Timing requirements
3.3.2.5 Error treatment
3.3.3 Incoming call for a type 1 interconnection through the LEC
3.3.3.1 Description
3.3.3.2 Specific example of a call
3.3.3.3 Variations
3.3.3.4 Timing requirements
3.3.3.5 Error treatment
3.3.3.6 Alternative arrangements
3.3.4 Incoming call for a type 1 interconnection through the LEC
         network to a fGD INC serving calls outside the 48 contiguous
         United States or a consolidated carrier serving call outside
         world zone 1
3.3.4.1 Description
3.3.4.2 Specific example of a call
3.3.4.3 Variations
3.3.4.4 Timing requirements
3.3.4.5 Error treatment
3.3.4.6 Alternative arrangements
3.3.5 Variation of type 1 for ISDN interconnection
3.3.5.1 Description
3.3.5.2 Subscriptions parameters
3.3.5.3 ISDN signaling protocol
3.3.5.4 Originating call - ISDN
3.3.5.5 Terminating call - ISDN
3.3.5.6 Tones and announcements
3.3.5.7 Call clearing - ISDN
3.3.5.8 Error procedures - ISDN
3.3.5.9 D-channel backup - ISDN
3.3.5.10 Calling number delivery
3.4 Type 2A interconnection call protocols
3.4.1 Outgoing call treatment
3.4.1.1 Description
3.4.1.2 Specific example of a call
3.4.1.3 Timing requirements
3.4.1.4 Error treatment
3.4.2 Type 2A WSP to LEC incoming call for completion to a DN
         in the LEC local network area, or through the network to
         a feature group A (FGA), FGB, or FGC IC, to another
         landmine LEC associated with the local network area or to
         another WSP POI in the local LEC network area
3.4.2.1 Description
3.4.2.2 Specific example of a call
3.4.2.3 Variations
3.4.2.4 Timing requirements
3.4.2.5 Error treatment
3.4.2.6 Interim arrangements
3.4.3 Type 2A incoming calls through the LEC network to a FGD
         IC (or consolidated carrier) serving world zone 1
3.4.3.1 Description
3.4.3.2 Specific example of a call
3.4.3.3 Variations
3.4.3.4 Timing requirements
3.4.3.5 Error treatment
3.4.3.6 Alternative arrangements
3.4.4 Type 2A incoming calls through the LEC network to a FGD
         INC serving calls outside the 48 contiguous United States
         or consolidated carrier serving calls outside world zone 1
3.4.4.1 Description
3.4.4.2 Specific example of a call
3.4.4.3 Variations
3.4.4.4 Timing requirements
3.4.4.5 Error treatment
3.4.4.6 Alternative arrangements
3.4.5 Type 2A with SS7 variation
3.5 Type 2B interconnection call protocols
3.5.1 (Outgoing (LEC EO to WSP) call treatment
3.5.1.1 Description
3.5.1.2 Specific example of a call
3.5.1.3 Timing requirements
3.5.1.4 Error treatment
3.5.2 Incoming (WSP to a DN in the LEC EO) call treatment
3.5.2.1 Description
3.5.2.2 Specific example of a call
3.5.2.3 Variations
3.5.2.4 Timing requirements
3.5.2.5 Error treatment
3.5.3 Type 2B incoming call through the LEC EO to FGD IC
3.5.4 Type 2B incoming call through the LEC EO to FGD INC
3.5.5 Type 2B with SS7 variation
3.6 Type 2C interconnection protocols, emergency services
         interconnection (911)
3.6.1 Model A
3.6.1.1 General
3.6.1.2 Possible advantages of model A
3.6.1.3 Possible disadvantages of model A
3.6.2 Model B
3.6.2.1 General
3.6.2.2 Possible advantages of model B
3.6.2.3 Possible disadvantages of model B
3.6.3 Model C
3.6.3.1 General
3.6.3.2 Possible advantages of model C
3.6.3.3 Possible disadvantages of model C
3.6.4 Model D
3.6.4.1 General
3.6.4.2 Possible disadvantages of model D
3.6.5 Model E
3.6.5.1 General
3.6.5.2 Possible advantages of model E
3.6.5.3 Possible disadvantages of model E
3.6.5.4 Variation of model E
3.7 Type 2D interconnection call protocols
3.7.1 Definition
3.7.2 Signaling
3.7.2.1 Interim operator services signaling
3.7.2.2 Exchange access signaling
3.7.2.3 Operator services signaling using signaling system 7
3.7.3 Billing considerations
3.8 Type S interconnection protocols
3.8.1 Signaling network architecture
3.8.2 ISDNUP signaling for call establishment and release
3.8.2.1 ISDNUP message set for basic all control
3.8.2.2 Summary of ISDNUP call setup and release procedures
3.8.3 TCAP signaling
3.8.4 Applications
3.8.5 ISDNUP message flow examples
3.9 Local number portability (LNP)
Appendix A: MF signaling, tones and announcements
Appendix B: additional information for interconnection of a WSP and
            a LEC network
References
Glossary
Acronyms
LIST OF FIGURES
LIST OF TABLES