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HD Voice - T-Mobile

    https://www.t-mobile.com/content/dam/t-mobile/corporate/media-library/public/documents/HD-Voice-Fact-Sheet.pdf/_jcr_content/renditions/original
    speakers and improved echo cancellation. T-Mobile HD Voice leverages the Wideband Adaptive Multi-Rate (Wideband AMR) codec – a technology which accommodates an audio frequency range that’s twice as wide as a regular, narrowband cell phone call – as well as enhancements to the microphones and speaker systems in T-Mobile smartphones. To

What is T-Mobile's Wideband LTE? | WhistleOut

    https://www.whistleout.com/CellPhones/News/what-is-t-mobiles-wideband-lte
    Wideband LTE is a souped-up version of regular LTE, made possible by combining multiple bands of spectrum. T-Mobile’s Wideband network combines at least 15+15 MHz of spectrum (and 20+20 MHz in parts of Detroit and Dallas) to offer customers faster speeds and a better, smoother LTE experience. T-Mobile has achieved this by layering its own AWS ...

T-Mobile Rolling Out HD Voice (Wideband) In US Mobile ...

    https://www.disruptivetelephony.com/2013/01/t-mobile-rolling-out-hd-voice-wideband-in-us-mobile-network.html
    This is an excellent step forward, even with the caveat that it only works on T-Mobile's 4G network and only with specific smartphones. As more and more people get used to the richer and better quality of wideband audio, expectations will rise and continue to push the ongoing migration of all telecom over to IP-based solutions.

T‑Mobile Wideband LTE Blows by the Competition in New …

    https://www.t-mobile.com/news/press/t-mobile-fastest-lte-network-wideband-new-york
    Un-carrier advances Wideband LTE roll-out, delivering unmatched network speeds in markets all across the U.S. — and promises more to come in 2015 New York, NY − December 15, 2014 − T-Mobile (NYSE: TMUS) today confirmed reported sightings of massive network speeds in recent days, announcing its Wideband LTE is now live throughout the greater New …

T-Mobile HD Voice tested, compared with AT&T standard call ...

    https://www.tmonews.com/2014/05/t-mobile-hd-voice-tested-compared-with-att-standard-call-sound-clips/
    Both AT&T and T-Mobile are using the W-AMR codec which is a 3GPP standard for wideband voice. Presuming that Verizon also waits until moving to VoLTE before allowing HDVoice they too will use W-AMR.

T-Mobile's iPhone: Everything You Need to Know

    https://www.iphonehacks.com/2013/03/t-mobile-iphone-everything-you-need-to-know.html
    Wideband Audio. T-Mobile will support iPhone 5′s Wideband Audio or HD Voice feature, which makes it the first carrier to support the feature in the U.S. It extends the frequency range of audio signals transmitted, resulting in crisper word clarity and …

Wideband audio - Wikipedia

    https://en.wikipedia.org/wiki/Wideband_audio
    Wideband audio, also known as wideband voice or HD voice, is high definition voice quality for telephony audio, contrasted with standard digital telephony "toll quality". It extends the frequency range of audio signals transmitted over telephone lines, resulting in higher quality speech. The range of the human voice extends from 100 Hz to 17 kHz but traditional, voiceband or …

What is wideband audio (HD voice)? - Definition from ...

    https://www.techtarget.com/searchnetworking/definition/wideband-audio-HD-voice
    Wideband audio, also known as high definition (HD) voice, is an audio technology that uses a wider frequency spectrum than narrowband audio to achieve better voice quality during cellular and voice over IP phone calls.Calls initiated through wideband audio require the entire communication chain to be high definition compatible or the call will revert to standard …

HD Voice - Between Carriers? : tmobile

    https://www.reddit.com/r/tmobile/comments/9e7vvo/hd_voice_between_carriers/
    Sort by. level 1. Unique_username28. 2 years ago. T-Mobile doesn't currently have HD Voice interoperability with any of the other 3 major carriers, unfortunately. Not sure what their plans are for it either; maybe someone else here has some knowledge to share... 15. level 2. ccryan2000.

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