supply of supply of slave telephone for electronic lc gate telephone systemsupply of slave telephone for electronic lc gate telephone system,supply of slave telephone for electronic lc gate telephone system of voice logging facility as per rdso specification no: rdso/spn/tc/51-2021 (rev. - 1.0 or latest). make: epsilon, benton or similar. [ warranty period: 30 months after the date of delivery ] ] , supply of centralized power supply system 24 v /12 dc power pack with 7 ah mf battery for electronic gate telephone system.as per rdsp spec no.rdso/spn/tc/51/2021-rev-1 or latest amndt (withvoice logging facility). make: epsilon/gaec/indisco or similar. [ warranty period: 30 months after the date of delivery ] ]