Velocity of Propagation is the speed of a signal in relation to the speed of light in a vacuum (186,400 miles per second). The number 1 represents the speed of light; all other signals are a fraction of this. A cable with a VOP of.75 transmits a signal at 75% of the speed of light.
Factors that affect the velocity of propagation are various insulation materials and thicknesses.
A proprietary video codec developed by On2 Technologies that used in Adobe Flash Player 8 and newer versions.
A business phone system providing call routing, follow-me calling, voicemail, fax-mail, and ACD queues delivered over the public switched telephone system, thus requiring no customer-installed equipment.
Short for virtual path identifier, an eight-bit field in an ATM cell��s header that identifies the virtual path (a bundle of virtual channels that have the same endpoint) to which the cell belongs as it travels through an ATM network.
Acronym for Virtual Private Dial-up Network. A network that extends remote access to a private network using a shared infrastructure. VPDNs use Layer 2 tunnel technologies (L2F, L2TP, and PPTP) to extend the Layer 2 and higher parts of the network connection from a remote user across an ISP network to a private network. VPDNs […]
Short for Voice Profile for Internet Mail, a method for encoding voice mail messages as data, enabling travel via the SMTP mail protocol over IP networks. VPIM uses MIME to encode messages in multiple parts, which are decoded by VPIM-compliant voice mail systems at the receiving end.