“using the nokia 2780 what is HD calling and how is it set on and off?”
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Hello! HD calling, also known as High Definition calling (or VoLTE), refers to a feature that enhances the audio quality of your phone calls. It provides clearer and more natural sound during conversations. Please note that HD calling is designed to enhance your call experience. It's enabled by default for the best call quality. The actual availability of VoLTE HD calls is subject to local operators’ and carriers’ services.
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