supply of 1)supply, installation and commissioning of 04-channel voice logger as per rdso/spn/tc/38-2002 ver- 2 or latest .2)supply and installation of server hardware and software for centralized monitoring of voice communication with voice logging between stations through vhf based secured communication through voice data recording and processing unit (vdrpu) installed at stations as per rdso/spn/tc/038-2002 ver2. , supply, installation and commissioning of 04-channel voice logger as per rdso/spn/ tc/38-2 002 ver- 2 or latest . (detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories information as per annexure-b ) . [ warranty period: 36 months after the date of deliver y ] ] , supply, installation and commissioning of 04-channel voice logger as per rdso/spn/ tc/38-2 002 ver- 2 or latest . (detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories information as per annexure-b ) . [ warranty period: 36 months after the date of deliver y ] ] , supply and installation of server hardware and software for centralized monitoring of voice c ommunication with voice logging between stations through vhf based secured communication through voi ce data recording and processing unit (vdrpu) installed at stations as per rdso/spn/tc/038-2002 ver2. ( detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories infor mation as per annexure-b ) . [ warranty period: 36 months after the date of delivery ] ] , supply and installation of server hardware and software for centralized monitoring of voice c ommunication with voice logging between stations through vhf based secured communication through voi ce data recording and processing unit (vdrpu) installed at stations as per rdso/spn/tc/038-2002 ver2. ( detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories infor mation as per annexure-b ) . [ warranty period: 36 months after the date of delivery ] ] , supply, installation and commissioning of 04-channel voice logger as per rdso/spn/ tc/38-2 002 ver- 2 or latest . (detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories information as per annexure-b ) . [ warranty period: 36 months after the date of deliver y ] ] , supply, installation and commissioning of 04-channel voice logger as per rdso/spn/ tc/38-2 002 ver- 2 or latest . (detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories information as per annexure-b ) . [ warranty period: 36 months after the date of deliver y ] ] , supply, installation and commissioning of 04-channel voice logger as per rdso/spn/ tc/38-2 002 ver- 2 or latest . (detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories information as per annexure-b ) . [ warranty period: 36 months after the date of deliver y ] ] , supply and installation of server hardware and software for centralized monitoring of voice c ommunication with voice logging between stations through vhf based secured communication through voi ce data recording and processing unit (vdrpu) installed at stations as per rdso/spn/tc/038-2002 ver2. ( detailed description as per attached annexure-a , clause 11.0 of rdso specification and accessories infor mation as per annexure-b ) . [ warranty period: 36 months after the date of delivery ] ]