Navigation: Configuration > Feature Guide > Voice Service > Multi-line Call >
By default, users have the service permission. To configure the service permission, perform the following steps:
1.Use an administrator account to log in to the web management system of a X1900 series unified gateway.
2.On the User > SIP User or User > POTS User page, select the user number to be assigned the service permission and click Service Configuration.
3.Under Simple service, select the service to activate and click OK.
4.In the upper right corner of the web page, click 
to save the configuration.
Parent Topic: Multi-line Call