Notwithstanding the provisions of NRS 710.030, the board of county commissioners of any county controlling and managing a telephone system, for the extension, betterment, alteration, reconstruction or other major improvement, or any combination thereof, of the system, including without limitation the purchase, construction, condemnation and other acquisition of plants, stations, other buildings, structures, other equipment, furnishings, transmission and distribution lines, other facilities, lands in fee simple, easements, rights-of-way, other interests in land, other real and personal property, and appurtenances, may, at any time or from time to time, in the name and on the behalf of the county, issue:
1. General obligation bonds, payable from taxes;
2. General obligation bonds, payable from taxes, which payment is additionally secured by a pledge of the net revenues derived from the operation of the system; and
3. Revenue bonds constituting special obligations and payable from such net revenues.