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
| Accuris | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | Q.35 |
| Product Name | 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 |