Hi, all!
Have a nice day to you!
This topic describes how to configure the ONLY service through the webpage.
Solution
Use an administrator account to log in to the web management system of a U1900 series unified gateway.
On the User > SIP User or User > POTS User page, select the user number to be assigned the service permission and click Service Configuration.
Under Complex service, click Configure next to ONLY service.
In the Configure ONLY dialog box that is displayed, set parameters as prompted Click OK.
In the upper right corner of the web page, click Save button to enlarge to save the configuration.

Thanks for reading!

