HD calling, also known as high-definition voice or advanced calling, is a premium type of audio technology that delivers clearer voice calling and a higher overall phone call quality by using a wideband signal to transmit high- and low-frequency sounds. It extends the frequency range of audio signals transmitted over telephone lines, providing a larger frequency range than standard digital telephony "toll quality". HD calling provides a seamless calling experience using wideband audio codecs and noise cancellation.
HD calling is available with select devices and is supported by most VoIP and mobile phone providers, as it can transmit over the internet, 5G, 4G LTE, and even Bluetooth. It is a standard feature in many voice-over-IP (VoIP) systems and is available on most new Verizon Apple and Android phones.
HD calling provides several benefits, including:
- Improved call clarity: HD voice strengthens call clarity, prevents miscommunication, and improves overall customer experience on 4G, 5G, and VoIP networks.
- Simultaneous voice and data connections: HD calling allows for simultaneous voice and data connections and 6-way conference calling.
- Better customer service: HD calling enhances customers’ perception of your business by ensuring conversations are precise and efficient, leading to higher team productivity, better sales performance, and increased customer satisfaction.
- Optimized customer service: Using this more advanced communication option, conversations between employees and customers should be more precise, leaving little room for muffled calls or miscommunication.
To make an HD call, both the caller and receiver must have an HD calling-capable phone. HD voice calling works by compressing and transmitting a high frequency-range analog signal with a high sample rate and bitrate. It uses a codec, a computer code that compresses audio content into data packets for easy transmission before sending it to a receiving server.
When considering making the switch to HD voice, you’ll want to take several factors into account, such as having a fast internet connection and ensuring that your phone supports HD calling.
