Meaning : Signalling System 4 (2040/2400 Hz tones)
Category : Telecommunication
Sub Category :Bandwidth & Channels
Type : Initialism
Signalling System 4 (2040/2400 Hz tones)
What is the full form of SS4 and meaning ?
This is a range of frequencies which is a channel associated signalling code which is in the 2040/2400 hertz supervisory tone.