Deskphones are showing offline

Problem

After adding a deskphone for Google Voice, you notice that it still shows offline.

Environment

  • Poly OBi 302
  • Google Voice
  • Admin console

Solution

To fix the issue, folow the steps listed below. 
  1. Deprovision the device in the Admin console .
  2. Factory reset the device.
  3. Setup the device again.
  4. Add it via the Admin console.
  5. Assign an email/number to the device.