If you cannot auto configure the phone or access the web portal, setup the sip account manually.


  1. Reset the phone to factory defaults
  2. Then set the sip line manually.
  3. The name and authentication name needs to be the ID for the extension in 3cx
  4. The authentication needs to be the password under ID in 3cx fro the extension
  5. The other labels should be the user's first and last name.
  6. Reboot the phone.