The various parts of this ETSI Standard provide a complete set of requirements for all applicationsintending to use DTMF signalling.
- Edition:
- 1.1.1
- Published:
- 09/01/2000
- Number of Pages:
- 12
- File Size:
- 1 file , 130 KB
- Note:
- This product is unavailable in Russia, Ukraine, Belarus
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