

In AT&T's case, it's only available on LTE in select areas. It only works when you're using your carrier's LTE network. While HD Voice sounds great, there are still a few kinks to work out of the system. Turn it to "On." If you don't see it or can't turn it on, call up Sprint and ask about adding it to your account.įor Android on T-Mobile, HD Voice is automatically activated. You can learn more on AT&T's FAQ page.įor Android on Sprint, go to Settings>Networks>Mobile Networks>Enhanced 4G LTE Mode. Turn it to "On." If you don't see it or can't turn it on, then your phone or account isn't compatible. Select the ones you want to add HD Voice to and then click "Confirm Purchase." Don't worry, the feature is free.įor Android on AT&T, go to Settings>Networks>Mobile Networks>Enhanced 4G LTE Mode.

At the top of the page click "Get Products," and next to "HD Voice" click "Get it now." In the checkout window, you'll see compatible gadgets you own. However, this won't work for every phone that supports Advanced Calling.įor others, sign in to your Verizon account and go to Manage My Account>Manage Products & Apps.

HD Voice will work automatically when you're in a compatible service area.įor Android on Verizon, you'll need to go to Settings and under Wireless Networks tap "Advanced Calling." Tap Activate Advanced Calling and follow the directions. On an iPhone 6 or 6 Plus for any carrier, go to Settings>Cellular>Enable LTE and tap Voice & Data. That includes the iPhone 6 and 6 Plus, along with most of the latest high-end Android phones like the Samsung Galaxy S4, S5 and S6, the Samsung Galaxy Note 3 and 4, the HTC One M8 and M9, the LG G2 and G3, the Motorola Moto X, the Google Nexus 5 and 6, and more. While HD voice isn't turned on by default for most phones, you can enable it if you have a phone that supports it. It also lets you make calls while using your cellular data for Internet browsing or Internet-connected apps at the same time.

HD voice is supposed to make calls clearer while reducing background noise. The only difference is that VoLTE uses the carrier's LTE data network. If the term "VoLTE" looks familiar, that's because it's similar to VoIP, or Voice over IP, which is making calls over the Internet. HD voice is also known as VoLTE, or Voice over LTE, although Verizon also calls it Advanced Calling.
