ITU-T - U.12
Terminal and Transit Control Signalling System for Telex and Similar Services on International Circuits (Type D Signalling) - Telegraph Switching (Study Group IX) 26 pp
inactive
| Organization: | ITU-T |
| Publication Date: | 1 January 1989 |
| Status: | inactive |
| Page Count: | 28 |
Document History
January 1, 1993
Terminal and Transit Control Signalling System for Telex and Similar Services on International Circuits (Type D Signalling) - Telegraph Switching Specific Signalling Schemes and Interworking Between Signalling Systems (Study Group IX) 28 pp
A description is not available for this item.
U.12
January 1, 1989
Terminal and Transit Control Signalling System for Telex and Similar Services on International Circuits (Type D Signalling) - Telegraph Switching (Study Group IX) 26 pp
A description is not available for this item.