An MPLS Circuit is a virtual private network (VPN) for securely connecting two or more locations over the public Internet or a private MPLS VPN network. MPLS circuits are secured through encryption on a customers router, which is known as a CPE based MPLS VPN, or on the MPLS providers network router, which is known as a network-based MPLS VPN. MPLS circuits are typically provisioned over Internet T1 lines or a private MPLS VPN circuit, higher bandwidth speeds are offered as well (MPLS Ethernet, NxT1, DS3), with options for managed MPLS circuit services. An MPLS network provides class of service (CoS) by utilizing MPLS VPN technology to prioritize and route time-sensitive data based on application. MPLS circuits are used by businesses to provide reliable, secure, MPLS VPN service for applications including credit card processing, file sharing, data backup, MPLS VOIP, or remote access. MPLS circuits can also be configured by most MPLS service providers to carry voice, Internet, and IP VPN services together as an Integrated MPLS T1 line. MPLS circuit services are also known as an MPLS Network, MPLS VPN, MPLS WAN, VPN T1, or MPLS T1.