...

  -- click on Devices -> Phones and then select one of the Karel IP11x Phones from the Add new phone... drop-down box.
  -- create a phone with MAC address in the "Serial number" edit box.
  -- then add line to the phone and edit the setting parameters,
  -- in Devices -> Phones place a check mark next to the newly created phone and click on the "Send Profiles" button.
 
2) Check that phone MAC address is DHCP registered.
  

3) Plug the phone into the LAN, and then power it on. It automatically registers itself to sipXecs and retrieves the confgiuration configuration file from sipXecs tftproot, .. 

Known Issues / Configuration Notes