 |
| |||
| сигнализация на двух группах частот | |||
| двухтональный многочастотный набор (klabukov) | |||
| Englisch Thesaurus | |||
| |||
| DTMF | |||
| |||
| Dual Tone Multiple-Frequency (The signaling system used in telephones with touchtone keypads, in which each digit is associated with two specific frequencies) | |||
|
Dual-Tone Multiple-Frequency : 1 Phrase in 1 Thematik |
| Telefonie | 1 |