Main functions:
1-for-8 telephone. All extensions have different numbers. Cross-calling, transferring, setting priority and trunk-calling authority, IP dialing.

Bell-ring optional. Phone number indication. Certain extensions are kept ON when power-out occurs.

Ensuring computers online simultaneously. Playing when plugs. Resources sharing.

After magnification the input video signal can be sent to 5 TV sets with good quality.

Typical applications:
3-bedroom and 1-livingroom house, 3-bedroom and 2-livingroom house, 4-bedroom and 2-livingroom house.