CEPT - T/S 46-20 E
ISDN User-Network Interface Data Link Layer Specification Application of CCITT Recommendations Q.920/ I.440 and Q.921/I.441
active, Most Current
| Organization: | CEPT |
| Publication Date: | 1 January 1987 |
| Status: | active |
| Page Count: | 168 |
Document History
T/S 46-20 E
January 1, 1987
ISDN User-Network Interface Data Link Layer Specification Application of CCITT Recommendations Q.920/ I.440 and Q.921/I.441
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