Restrict Web Access to Yeastar S-Series VoIP PBX

This topic describes how to restrict users from accessing the web interface of Yeastar S-Series VoIP PBX.


  1. Go to Settings > System > Security > Service.
  2. In the Web Access Control drop-down list, set which IP address is allowed to access the PBX.
    • Local Network Only: To allow all the local devices to access the PBX, choose the option.

      The allowed local network segments are as follows:

    • Permitted IP/Subnet Mask: To allow specific IP addresses to access the PBX, choose the option.

      For example, if you only want devices in 192.168.6.X to access the PBX, you should enter

  3. Click Save.