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T-Mobile Talks VoLTE and HD Voice

Jun 18, 2014, 8:17 PM by Eric M. Zeman

T-Mobile today said its LTE network rollout continues to move forward at a steady clip. As of today, T-Mobile's LTE network covers 227 million POPs. It will reach 230 million POPs by the end of the month, 250 million by the end of the year, and T-Mobile will finalize its LTE build-out across its entire footprint moving into 2015. Further, T-Mobile has expanded the number of markets that offer VoLTE to 16, including major metro areas New York City, Los Angeles, and Chicago. T-Mobile says VoLTE is available to more than 100 million of its customers with this rollout on a total of four devices. (The Samsung Galaxy S5 will be made VoLTE-capable with an over-the-air download expected this week.) VoLTE supports clear HD Voice, which T-Mobile has boosted to a codex of 24Kbps. Last, T-Mobile has expanded the reach of its wide-band LTE network, which uses 15+15MHz and 20+20MHz channels to improve capacity. T-Mobile claims its wide-band LTE is capable of delivering theoretical download speeds of 150Mbps.

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Rusty Shackleford

Jun 20, 2014, 1:39 AM

No LTE but yet I get HD Voice

I'm on Metro PCS which is basically T-Mobile anymore, and I bought a phone recently that does not have LTE yet there are a couple people I call where I get the HD Voice logo on my phone. I thought HD Voice was only going to be handled on the LTE network.

One person in particular I even remarked on the clarity of her voice and then a few phone calls later I caught the logo for the first time. Personally I find this long overdue because the 1890s level of audio quality on both landline and cellular has desperately needed upgrading for decades. Even though HD Voice seems 1980s at best, it is still a huge improvement.

It is funny because this seems so new, yet the only people I get HD Voice with are on T-Mobile and that cheapo Walmart s...
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Labonte

VoLTE and HD voice are two separate things, but I have used both recently and my ears can't really tell the difference. The "cheapy Walmart" service also uses the T-Mobile network.

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Tofuchong

HD voice was introduced before T-Mobile had an LTE network, back when they were finished rolling out the 21Mbps/42Mbps HSPA+ network, it was available back then on specific devices. As long as both phones support HD voice, you'll get it on HSPA+ and ...
(continues)

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