Carrier Ethernet - Dedicated Internet Access - IP Telephony - VPN VPLS MPLS Network Solutions

Virtual Channel

A permanent (PVC) or switched (SVC) logical circuit created to facilitate reliable communication between two network devices or endpoints.

A group of devices or endpoints on one (1) or more LANs that are capable of communicating as if they were physically connected.

Virtual private LAN service is a method to extend a switched Ethernet LAN over an IP/MPLS (Internet Protocol / Multiprotocol Label Switching) network.

A virtual private network or VPN is a network that uses either a public telecommunication infrastructure, such as the Internet, or a carrier network to provide remote offices or individual users with secure access to their organization's network. A VPN is an evolution from previous network implementations based on private or lines leased by individual organizations.

Voice over IP, or Voice over Internet Protocol, or more simply VoIP, is generalized telecommunications terminology describing a group of transmission and communications protocols, used to deliver a series of voice packets over IP (Internet Protocol) based private network, or a public network such as the Internet. VoIP makes use of session control protocols to setup and tear down calls, and audio codecs which encode speech in various digital formats and faciliate its transmission over IP networks.

Voice over MPLS, Voice over Multiprotocol Label Switching (networks), or more simply VoMPLS is a method of leveraging carrier or service provider MPLS networks to transport and deliver VoIP, either by encapsulating Voice within IP, without IP using label switched path (LSP) based tunnels, or within MPLS packets.

A Virtual Tributary, or VT, is a Synchronous Optical Network (SONET) signal which transports payloads that are smaller than a STS-1 (44.736 Megabits per second).