48 Port Intercom System for Office

FEATURES? ? 1. CO LINE GROUP System can make CO Lines in different group,ringing or make outside calls. ? 2. BOSS SECRETARY CALL The secretary can make call reserve or hold and transfer the call to Boss ? 3. FSK, DTMF Caller ID Support Caller ID to operator, optional intercom Caller ID. ? 4. WELCOME MESSAGE Welcome message can be recorded by regular phone set. ? 5. CALL FORWARDING The extension ringing call can be forwarded to other extensions remotely ,when no-answer.. ? 6. CALL INTERRUPT AND BREAK The manager extension can interrupt and break the existing conversations.. ? 7. CALL PICK UP One can pick up the remote ringing extension. ? 8. CALL ON HOLD System can hold external line and transfer to other party.. ? 9. CALL DURATION CONTROL The system will restrict the talking time for extension and give warning. ? 10. CLASS OF SERVICE System restrict 5-class of service call,including restrict long distance call or only allow to dial intercom call. ? 11. EXTENSION FLEXIBLE NUMBERING User can set 2-digit or 3-digit extension numbers from xx~xx or xxx~xxx etc. ? ? 12. POWER FAILURE TRANSFER System will switch extension to ringing for incoming call when power stops. ? ? 13. CALL CONFERENCE Allow 3 party talk at a conference group. ? ? 14. SET OPERATOR System can set altogether 2 Operators in PBX. ? ? 15. AUTO ATTENDANT The caller can dial extension directly after hearing welcome message, without Operator transfer. . ? 16. FLASH TIME SETTING System support to set flash time so that the call transfer can be easily in different area. ? ? 17. 3-class LIGHTNING PROTECTION System support strong lightning protection duration lightning weather . ?