First upgrade the firmware:
Firmware Version
Bank 1: 01.032
Bank 2: 01.017
Under VOIP tab, Go to SIP Settings > Line 1 and enter the details as per below.
Phone number and Authentication ID should be your numbers.
SIP URL should be sip:yournumber@27.111.14.67
![](https://klshop.mercurydevphp.co.nz/wp-content/uploads/2019/04/01_panasonic1.png)
![](https://klshop.mercurydevphp.co.nz/wp-content/uploads/2019/04/02_panasonic2.png)