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(Extracted from Questions 11/13 and 12/13)
Background and justification
For the successful continuation and implementation of B-ISDN
services, refinement and enhancement to B-ISDN Layer 1
specifications may be needed considering the market demands of the
maturity, variety and economy of the interfaces. Close interaction
with experts on NNI Recommendation G.707 is necessary for the
continuing harmonization of B-ISDN Recommendations to ensure full
compatibility of implementations.
Maintenance of Recommendations for 64 kbit/s ISDN interfaces
(Recommendations I.430, I.431 and G.961) will also be considered
if required.
Items for study
- Consideration of the necessary refinements and enhancements
to the existing B-ISDN user-network interface (UNI)
Recommendations (I.432 series)
- Consideration of the necessary refinements and enhancements
to the existing B-ISDN service node interface (SNI)
Recommendations G.967.1, G.967.2 and G.967.3.
- Consideration of the necessary refinements and enhancements
to the existing ISDN service node interface (SNI)
Recommendations G.964 and G.965.
- Revision of Recommendation I.414 (Overview of Access
Recommendations) as necessary to incorporate VB5 interface, and
other recent new Recommendations in the area of access.
- Maintenance of the existing ISDN Layer 1 Recommendations
I.430, I.431, G.960, G.961, G.962, G.963 (if required).
Tasks with deadlines
- Update I.414 by 2001
- Update I.430, I.431, I.432 series (if required)
- Update G.964, G.965 and G.967.x series by 2001
Relationships
ITU-T Study Groups on maintenance specifications
ITU-T Study Groups on access network architecture
ISO and IEC on connector and cabling specifications of interfaces
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