High Definition Voice technology enhances the audio quality when you call another Vodafone phone. It improves call clarity, reduces background noise and improves voice quality in conference calls.
You will automatically use HD Voice when you make or receive a call from another Vodafone phone.
To use HD Voice, both phones must support Wideband Adaptive Multi-Rate coding (WB-AMR). Most late model smartphones will support HD Voice. To see if your device supports WB-AMR coding, check your user guide or contact the device manufacturer.
No, you’ll be charged your normal rates for making a call using HD Voice.
Yes. HD Voice is available on both 3G and 4G compatible devices.
No, HD Voice can’t be switched off.