SIP ConfigField name explanationSIP LineChoose line to set info about SIP, there are 4 lines to choose. You can switchby【Load】button.Basic SettingsStatus Shows if the phone has been registered the SIPserver or not; or so, show Unapplied.Server Address Input your SIP server address.Server Port Set your SIP server port.Authentication User Input your SIP register account name.AuthenticationPasswordInput your SIP register password.SIP User Input the phone number assigned by your VoIPservice provider. Phone will not register if there isno phone number configured.Display Name Set the display name.Proxy Server AddressSet proxy server IP address(Usually, Register SIPServer configuration is the same as Proxy SIPServer. But if your VoIP service provider givedifferent configurations between Register SIP Server