Now that the Nexus 6 is officially on Verizon, the device should work a lot better natively on the network. With Android 5.1, the issue of simultaneous voice and data seems to be fixed.
On Verizon, many phones last year began get the ability to place calls and use data at the same time, thanks to the new VoLTE (Voice over LTE) network upgrades. For many of the devices however, software updates had to be issued in order to use this feature. It seems that has been bundled with Android 5.1 in the case of the Nexus 6.
After you update to Android 5.1, there are now two settings that need to be turned on in the “Cellular Network Settings” area of the Settings app, for VoLTE and then “Enhanced 4G LTE Mode.” Here are the steps necessary to enable this feature:
- Open the dialer and paste in *#*#4636#*#*. Once the last star has been pressed, your device will then go into the hidden settings menu.
- Inside the menu, tap “Phone info” and then scroll until you find “TURN ON VOLTE PROVISIONED FLAG.” Then reboot your phone. You might have to reboot twice, but keep trying until it works.
- Open the regular Settings app, and then tap on “More” under “Wireless & networks.” Then tap on “Cellular networks” under that menu. The “Enhanced 4G LTE Mode” option should now appear and be toggled on.
If this still hasn’t worked, you might need to add HD Voice to your Verizon account, which you can do so through their website. To see if these tests have been successful, turn Wifi off and then call someone. Then try and navigate to a webpage. If you can do so, this feature now works for you.
Source: Droid Life