DIGITAL ISDN EPBAX SYSTEM WITH BASED FEATURE READY LATEST WITN ADDITIONAL FEATURES .(A] EXPANDABLE UPTO 768 PORTS[WITHOUT ANYCHANGE IN CPU HARDWARE AND SOFTWARE] [B] WIRED FOR 50012 PORTS BY SIMPLY ADDITIONAL CARDS \INTERFACE CARDS [C]DTMF\DP ANALOG SUBSCRIBER LINE WITH CLI FACILITY. 6 PARTY CONFERENCE BRIDGE FACLITY AS PER TECHNICAL SPECIFICATION SIMULTANEOUSLY. [D] 2Mb digital port . 2\4 we& m port .bsnl. did\dod faclity at 2mb level [E] CDs flash rom containing complete software.[F]KRONE TYPE YPE MDF FOR TERMINATION OF 512 LINES EQUIPPED WITH INTEGRATED PROTECTION DEVICE FOR OVER CURRENT AND OVER VOLTAGE FOR ALL EQUIPPED TRUNK AND SUBSCRIBER LINES.