The various parts of this Technical Specification (TS) provide a complete set of requirements for all applications intending to use DTMF signalling.
- Edition:
- 1.1.1
- Published:
- 05/01/2000
- Number of Pages:
- 8
- File Size:
- 1 file , 36 KB
- Note:
- This product is unavailable in Russia, Ukraine, Belarus
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