annual maintenance contract of epbax system make of siemens hipath of university swagat guest house , administrative block and vice-chancellor camp office at dcrust , murthal ( sonepat ) . , vice-chancellor residence & camp office . 1 ) siemens hipath 1120 ( 2 p&t lines , 04 digital extensions and 08 analog extensions ) system with fax / did - ( 1 each ) 2 ) optipoint 500 economy ( telephone sets ) make siemens - ( 1 each ) 3 ) optipoint 500 standard ( telephone sets ) make siemens - ( 1 each ) 4 ) optipoint 500 advance ( telephone sets ( make siemens - ( 2 each ) 5 ) euroset 2025 c ( telephone sets ) make siemens - ( 8 each ) 6 ) mdf 20 pair make krone - ( 1 each ) 7 ) ups ( excluding batteries ) make nexus - ( each ) , administrative block1 ) siemens hipath 3350 with 02 isdn lines 04 p&t lines , 16 digital extns . & 04 analog extns . business communication system . - ( 1 each ) 2 ) open stage 40 t make siemens ( 13 each ) 3 ) mdf 30 pair make krone - ( 1 each ) 4 ) ups ( excluding batteries ) make microtek - ( 1 each ) , university swagat guest house1 ) siemens hipath 3550 with 02 isdn lines , 08 p&t lines 18 digital extns . & 20 analog extns . business communication system - ( 1 each ) 2 ) open stage 40 t ( telephone set ) make siemens - ( 13 each ) 3 ) euroset 2025 c ( telephone set ) make siemens - ( 15 each ) 4 ) mdf 50 pair make krone - ( 1 each ) 5 ) ups ( excluding batteries ) make microtek - ( 1 each )