comprehensive annual maintenance of lan and internet networking system ,digital epabx system ,ups for server of second floorin the office of the resident commissioner and wifi router, and surveillance system present exclusively forthe use of pr. resident commissioner , govt. ofwest bengal,new delhi during the year 2025-26.- 1 basic panasonic pure voip new nextgen business communication server model kx – ns 300 + model kx - ns 320 equipped & configured for 06 cli based analogue p&t / co / trunk line , 10 digital extns. and 32 cli based analogue slt extns. ( in totality42 extns. ) expandable to 128 extns. and further upgradable to 256 extns. along with the builtin lan port , simplified voice messaging facility having disa / dosawelcome greeting message along with the mail box facility having the recording time capacity of 120 mnts. and also the capability to be integrated with microsoft outlook / exchange server. 2 basic call accounting software ( compatible with windows 98 or xp , windows 7 having 32 bit only and server 2000 & 2003 reqd. in the hardware) 3 100 pair krone mdf with line protection units / modules and lan cables with connectors 4 panasonic digital key phone model kx – t 7665 with 08 dss / blf flexible keys , 1 x 8 line alphanumeric lcd display , dxdp port , digital speakerphone features[steel grey/ black in colour] 5 panasonic digital key phone model kx – dt 543 with 24 dss / blf flexible keys , 1 x 3 line alphanumeric lcd display , dxdp port , digital speakerphone features[steel grey/ black in colour] 6 panasonic digital key phone model kx – dt 546 with 24 dss / blf flexible keys , 6 x 24 line alphanumeric double tilt able lcd display with back light , dxdp / xdp port , usb port , directory dialingnavigator keys , ohca , digital speakerphone , bluetooth compatible features[steel grey/ black in colour]. 7 d-link(model no-600) wireless router for wireless connectivity for dedicated use ofprincipal resident commissioner 8 cisco catalyst ws-c2960x-24tx-s 24-port 10/100/1000 switch with sfp slot 9 d- link24 portgigabit switch 10 checking & cleaning of 37u rack twice per month including repairing of ventilation fans, power strip, fusesas and whenever is required 11 surveillance system including2mp cp+ surveillance camera ,4port hd dvr,1tb hard disk and 14.5inch monitor used by only principal resident commissioner. 12 3 kva on line ups (apc make) with inbuilt ats switcher facility for using the upss in hot standby mode supply using single battery bank. 13 12v 26ah battery (exide make)