Surrey County Council is looking for a supplier to provide a wide-area network (WAN) and managed IP services for public sector organisations in the region.
The council expects the total value of the contract to be worth between £48 million and £240 million.
Under the Unified Communications over Regional Networks (UNiCORN) contract, in addition to WAN, the council is looking for a supplier to provide local area networks, IP voice services and other managed IP services.