supply of mobile radio over ip solution, provision of mobile radio over ip solution with following: ( 1 ) supply and transportation of ip gateway with audio cable , lan switch , ethernet surge protector & psu = 01 set ( 2 ) supply and transportation of audio paging console with necessary audio cabling = 01 set. ( 3 ) installation and commissioning of ip gateway & paging console= 01 set ( 4 ) supply and transportation of ip gateway with mobility option ( built in dual sim 3g / 4g modem ) , audio cable, gsm antenna & psu cable. all the units will be properly mounted in a rugged transportable carrying case for art trains ( 1 set per train ) = 01 no. . ( 5 ) ) installation and commissioning of ip gateway with mobility option per art = 01 set. ( 6 ) supply and installation of 2kva online ups with one hour backup. ( make: apc, aplab, emersion, numeric or similar ) including smf vrla batteries ( make; exide, amararaja, panasonic or similar with trolley for battery bank- 01 set, as per annexure-a attached. [ warranty period: 30 months after the date of delivery ]