Ads
related to: dual tone multiple frequency speakers wirelesscrutchfield.com has been visited by 100K+ users in the past month
- Surround Rear Speakers
The Finishing Touch for Enveloping
Surround Sound in a Home Theater
- Tower Speakers
Enjoy Room-Filling Sound. A Great
Choice for Both Music and Movies
- In-Ceiling Speakers
No Need to Sacrifice Wall, Floor,
or Shelf Space with These Speakers
- Center Channel
The Vital Component to Deliver
Clear Dialogue in Your Home Theater
- Surround Rear Speakers
Search results
Results from the WOW.Com Content Network
Dual-tone multi-frequency signaling (DTMF) is a telecommunication signaling system using the voice-frequency band over telephone lines between telephone equipment and other communications devices and switching centers. [1]
Multifrequency signaling is a technological precursor of dual-tone multi-frequency signaling (DTMF, Touch-Tone), which uses the same fundamental principle, but was used primarily for signaling address information and control signals from a user's telephone to the wire-center's Class-5 switch. DTMF uses a total of eight frequencies.
In the public switched telephone network (PSTN), in-band signaling is the exchange of call control information within the same physical channel, or within the same frequency band, that the message (the callers' voice) is using. An example is dual-tone multi-frequency signaling (DTMF), which is used on most telephone lines to customer premises.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Dual_tone_multi-frequency&oldid=1214073029"
Multiple frequency-shift keying (MFSK) is a variation of frequency-shift keying (FSK) that uses more than two frequencies. MFSK is a form of M-ary orthogonal modulation , where each symbol consists of one element from an alphabet of orthogonal waveforms.
Push-to-talk (PTT), also known as press-to-transmit, is a method of having conversations or talking on half-duplex communication lines, including two-way radio, using a momentary button to switch from voice reception mode to transmit mode. CB radio with push-to-talk microphone switch
Ads
related to: dual tone multiple frequency speakers wirelesscrutchfield.com has been visited by 100K+ users in the past month