Activate HD Voice - Sonim Basic Phones

Caution Caution:

  • HD Voice isn't recommended if you use a 1X/3G Network Extender or a TTY/TDD device.
  • HD Voice on the smartphone must be turned on if you use a 4G Network Extender.
  • If located in Alaska, it's not recommended to turn off HD Voice for troubleshooting purposes as it causes the device to roam off the Verizon Wireless network.


Note Notes:

  • HD Voice calling requires both parties to be in Verizon 4G LTE coverage area, have HD voice capable devices and be provisioned for HD Voice to do simultaneous voice and data.
  • HD Voice is included in existing voice plans and minutes are billed as regular voice calls.
  • Video calling is currently not available for this device.


  1. Sign in to My Verizon.
  2. Navigate: Support > Services & Apps page.
  3. From the 'Manage services & apps in My Verizon' section, click View/change my services and apps.
  4. Locate the HD Voice add-on then click Get it now.
  5. Ensure the applicable add-on (i.e., Wi-Fi Calling, HD Voice, etc.) is turned on for your XP5s or XP5.
    Note HD Voice features vary by device.


Note The voice portion of the call is billed per minute of use and the video portion is billed as data. For additional info, see these HD Voice FAQs.