A Device For Recording, Analysis and Visualization of Glottal Vibration and the Method Thereof, the device comprising of Neck Band(3) having Piezoelectric Sensor(6) to record glottal vibration from the subject/person(31) in a pure non-invasive way and Microphone(1) to record the voice. An Electronic Hardware moduie(...

The present invention aims at proving free call to the people, which may be by using of toll free number, even if users do not have enough balance or money in any form in their account, or even if they do not have Internet access in their devices. In return of this free call service, the users have to listen to t...