MOBILE RINGTONES UK
Updated 2 days ago
16 - 18 Dickson Lane, Cobham, London, KT19 6HG
A Mobile Phone "rings" when its network indicates an incoming call and the phone thus alerts the user. For Landline Phones , the call signal can be an electric current generated by the switch to which the telephone is connected. For mobile phones, the network sends the phone a message indicating an incoming call...
A telephone "ring" is the sound generated when there is an incoming telephone call. The term originated from the fact that early telephones had a ringing mechanism consisting of a bell and an electromagnetically -driven hammer, producing a ringing sound. The aforementioned electrical signal powered the electromagnet which would rapidly move and release the hammer, striking the bell. This "Magneto " bell system is still in widespread use. The ringing signal sent to a customer's telephone is pulsating DC 90 volts pulsating at 20 hertz in North America. In Europe it is around 60-90 volts AC at a frequency of 25 hertz