Name:
ITU-T X.20 PDF
Published Date:
11/01/1988
Status:
[ Active ]
Publisher:
International Telecommunication Union-T
This Recommendation defines the physical characteristics and call control procedures for a general purpose interface between DTE and DCE for user classes of service, as defined in Recommendation X.1, employing start-stop transmission.
The formats and procedures for selection, call progress and DCE provided information are included in this Recommendation.
The provision for duplex operation is covered.
| Edition : | 88 |
| File Size : | 1 file |
| Number of Pages : | 30 |
| Published : | 11/01/1988 |
