ITU-T - Q.35
Technical Characteristics of Tones for the Telephone Service - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 9 pp
inactive
| Organization: | ITU-T |
| Publication Date: | 1 January 1989 |
| Status: | inactive |
| Page Count: | 18 |
Document History
March 1, 1998
Technical Characteristics of Tones for the Telephone Service -Series Q: Switching and Signalling - International Automatic and Semi-Automatic Working - Tones for Use in National Signalling Systems
A description is not available for this item.
Q.35
January 1, 1989
Technical Characteristics of Tones for the Telephone Service - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 9 pp
A description is not available for this item.