Premises eligible for the NSS must be within line of sight of the IPSTAR broadband satellite, and have never been subscribed to a service via the Australian Broadband Guarantee (ABG) or the Interim Satellite Service (ISS). The NSS Scheme is designed to deliver wholesale speeds of up to 4 Mbps download and 1 Mbps upload. IPSTAR will provide Internet Service Providers with a minimum download performance equivalent to 2.6 Mbps for 20.4 hours per day.