How To Enable HD Voice or VoLTE on Android and IOS - Cel-Fi DUO+ Tips

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Tuesday, 31 May 2016

How To Enable HD Voice or VoLTE on Android and IOS - Cel-Fi DUO+ Tips


HD Voice is a suite of services enabled by VoLTE (Voice over LTE) technology. VoLTE delivers voice calls over the Verizon 4G LTE network instead of the traditional voice network, providing clearer, more natural sounding audio when both parties are using HD Voice-enabled phones. HD Voice also means that for the first time, simultaneous voice and 4G LTE data connections are possible. Verizon users can make a call while continuing to use an app, run a mobile hotspot, check e-mails, and browse the internet.

There are a few requirements you’ll need to meet in order to use make an HD Voice call. First, you have to be on a standard monthly plan. Sorry Prepaid users, currently Verizon doesn’t let you use VoLTE. Second, you have to have an HD Voice-capable phone. Devices like the iPhone 6, iPhone SE, Samsung Galaxy S5, S6, and S7, plus many more, are all HD Voice ready.


To enable HD Voice on your compatible iPhone:

  1. Tap Settings

  2. Tap Cellular

  3. Tap Enable LTE

  4. Tap Voice & Data


To enable or disable HD Voice on your Android phone:

  1. Go to Settings.

  2. Tap Advanced Calling under WIRELESS NETWORKS.

  3. Tap Advanced Calling again to turn it On or Off.

If you have an older device like Samsung Galaxy S® 5 or Motorola Droid Ultra / Maxx / Mini follow these steps to turn HD Voice on or off:

  1. Go to Settings.

  2. Tap More Networks or Tethering & Networks.

  3. Tap Mobile Networks.

  4. Tap the VoLTE Call setting to turn it to On or Off.

HD Voice calls won’t switch between the 3G and 4G networks  though. If you start a call on 3G and you move to an LTE area, your call would still continue on 3G. Same with VoLTE. A call started on VoLTE can’t jump to 3G if you lose your LTE signal. The call would drop.

With HD Voice enabled, VoLTE calling with simultaneous data use is possible on the Verizon network. What if you are in an area where you have weak cellular signal indoors and can’t make a regular voice call or your LTE signal doesn’t work inside a home or an office?


Enter the Cel-Fi DUO+ for Verizon LTE. The Cel-Fi DUO+ is a zero install, cable free signal booster for the home or office that can boost a 1 bar minimum Verizon LTE signal over 13,000 square feet! By enabling HD Voice on your phone and doing a 5 minute Cel-Fi installation, you can leverage an amplified LTE signal to make clear HD calls where previously you may not have been able to even make a 3G call. On top of boosting the ability to make and receive phone calls, you’ll also be bringing in a stronger and possibly faster connection for 4G LTE data!

Learn more about the Cel-Fi at 3Gstore!

Last Updated ( Wednesday, 29 June 2016 )
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