Main Features:
1. FSK/DTMF CID.
2. Transferred CID / Intercom CID(For CS+ series).
3. Doorphone Interface.
4. Elegant fashion Design.
5. Ringing Pattern for different calls.
6. Flexible call setting: Toll Restriction/limited call Duration / Auto-attendant / Call Forwarding / Call pick-up.
7. Communication Paths No block.
8. Memory protect in case of power failure.
9. Remote programming service.
10. 11 Chord melody music selectable