ITU-T Q.35
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
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| Organization: | ITU-T |
| Publication Date: | 1 March 1998 |
| Status: | active |
| Page Count: | 18 |
Document History
ITU-T Q.35
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.
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.