How to register the VIP-2020PT to the IPX-2100

[In IPX-2100]
For extensions, please create a new account and remember their user name and password.

[In VIP-2020PT]
On the VoIP / SIP page, please assign the follow messages:
SIP line: choose the line you want to register
Server address: the IPX-2100 IP address
Server port: Server register port default is 5060
Authentication user: 800 (the extension you create in the IPX-2100)
SIP user: (the extension you create in the IPX-2100)
Display name: the name you want to display on phone screen when pressing the line button.
After saving the modification, if your registration is successful, the status will display “Registered”.