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This Recommendation specifies the Link Access Procedures on the D-channel (LAPD) of an ISDN customer access. Implementations of this Recommendation are in use in existing networks. This Recommendation has been amended in order to add a new Annex J and a new Appendix V to describe in general terms the link access procedure for use in a symmetrical application between two Private Integrated Network Exchanges (PINXs) at the Q reference point.
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.30 : Switching and signalling systems
33.080 : Integrated Services Digital Network (ISDN) |
| Number of pages | 16 |
| Modify | ITU-T Q.921 (1997-09)
|
| Year | 2000 |
| Document history | |
| Country | International |
| Keyword | CCITT Q.921;CCITT Q.921 AMD 1;ITU-T Q.921;ITU-T 921;921;ITU-T Q.921 (1997) AMD 1 |