You can access the extranet, typically if you have a valid user-name and password. In addition, your identity may determine which parts of the extranet you can view. Though only as thick as a human hair, each fiber optic strand has far greater capacity, or bandwidth, to carry information than copper wire. Firewall A gateway between two networks that buffers and screens traffic that attempts to pass between the two networks. Frame Relay High-speed data transfer using a shared digital network.
Frame relay is cheaper than a dedicated data line because it is shared.
Frame relay is particularly appropriate for Internet connections or other data transfer between computers. A service that allows your business to have its dial tones supplied by a remote location. Call A call placed within the local service area of a particular phone company. Generally transmitted without toll charges. Not every incoming line appears on every phone, as in most Key systems, but the hybrid system can accommodate both Key and PBX phones.