China (Mainland) D848 Advanced Hybrid Key Telephone Systems

Specifications: Hybrid key telephone systems Model: D848(4+16 extendable to 8+48) D168(4+8 extendable to 16+128) D288(4+8 extendable to 32+256) Basic features: Account code entry Automatical re-dial Automatical call back Back-up battery Charge system& PC port Co to co with password Class of services Call transfer Call pickup Call hold retrieve Call hold return tone Call waiting signal Call forward on busy Call forward when no-answer Call forward directly Call duration restriction Call splitting Day/night services Disa Direct dialing-out Double-color light Do not disturb Date& time setting External music Exclusive line(s) Extension password Extendable by card Hot dialing IP dialing Intercom caller id& transfer Interrupt an existing call Incoming ringing delay Intercom call transfer Music-on-hold No-answer return tone One-touch dialing Ringing pattern selection Paging Setting operator Trunk number integrated Volume adjustment Voicemail comaptitable Wake-up call 3-duration ogm 3-minutes alarm 3~8-parties conference call 2,3,4-digital number coding 1~12 pt available