Go to Account->Basic to configure sip account and sip server.
Status: To display register result.
Display Label: To configure label displayed on the phone ’ s
LCD screen.
Display Name: To configure name sent to the other call party
for displaying.
Register Name: To enter extension number you want and the
number is allocated by SIP server.
User Name: To enter user name of the extension.
Password: To enter password for the extension.
Server IP: To enter SIP server’s IP address or URL.