visual signalvisual transmitter picture transmittervisual transmitter powervlfvlsivmos vertical metal oxide simiconductorvocodervoicevoice channelvoice codervoice coilvoice digitizationvoice frequency carrer telegraphyvoice frequency speech frequencyvoice grade linevoice multiplexingvoice operated transmissionvoice over ipvoice recognition unitvoice responcevoice synthesizer speech synthesizervoice warnin systemvoiceprintvolatile memoryvoltvolt amperevolt ohm milliameter multimetervoltagevoltage amplificationvoltage amplifiervoltage attenuationvoltage breakdownvoltage calibratorvoltage controlledvoltage controlled capacitorvoltage controlled crystal oscillatorvoltage controlled oscillatorvoltage controlled resistancevoltage controlled switchvoltage cutoffvoltage differencevoltage dividervoltage divisionvoltage doublervoltage dropvoltage feedvoltage feedbackvoltage followervoltage gainvoltage generator