This technology allows the cordless handset to automatically choose the clearest of 10 available channels on which to send the call. 100Base-FX Dual fiber designed for 100-Mbps FDDI. 100Base-T4 100 meters of 4-pair, category-3 wire. Half-duplex 33.3-Mbps per pair. 100Base-TX 100 meters of 2-pair, category-5 wire. (Designed for 100Mbps FDDI or copper wires or CDDI (copper distributed data interface). Half-duplex 33.3Mbps per pair. 10Base-2 10-Mbps speed Ethernet on a 50-Ohm coax RG 58u with a maximum length of 180 meters and no built-in transceiver. Also known as thinwire Ethernet. 10Base-5 10-Mbps speed on a 50-Ohm coax RG-6 with a maximum length of 500 meters. Also known as thickwire Ethernet. 10Base-T An IEEE standard (802.3) for operating 10 Mbps Ethernet networks with twisted-pair cabling and a wiring hub, referred to as a 10Base-T hub. 3-Way Teleconferencing This telephone system feature allows the user to have 3-way conversations with two parties on two different lines. (Under certain circumstances, the far-end parties on a conference call may not hear one another clearly.) 3.1 Khz Audio Bearer Service A bearer service, provided by some telephone companies, that sends data calls over voice trunks. The switches should turn off echo cancellators on the trunks handling this type of call. Echo cancellation corrupts data transmitted on voice trunks. 3.1 Khz audio bearer service is sometimes referred to as data-over-voice. Note: Currently, parameter settings for "digital/data" in Ascend units does not differentiate between data bearer and 3.1 Khz audio bearer services. The "voice" setting means only true voice service and does not include 3.1 Khz audio bearer service. 3B21D The main hardware component for the Executive Cellular Processor Complex (ECPC). It is a fully duplex-ed, fault-tolerant computer with 256 MB of physical memory. It contains the Input/Output Processor (IOP), the Central Processor Unit (CPU), the memory stores, and the disk file controller. 3DFS® Software that uses standard operating system commands to interface with archived files. 3PC Third Party Connect Protocol 401-Unauthorized An Internet error message notifying users that they have failed to enter a password, or the one entered is incorrect. Or, the requested site may not be open to everyone, but only to users from a specific Internet domain. 403-Forbidden See error message 401. 404-Not Found An Internet error message notifying users that the requested page cannot be found, probably because it no longer exists or has been moved elsewhere. 4ESS® Electronic switch, switching equipment. 503-Service Unavailable An Internet error message notifying users that the requested site is overloaded because too many people are trying to access it. Try again later. 5ESS®-2000 Switch Intelligent, modular, and evolvable digital central office switching platform capable of supporting a broad range of communications: local or long distance, wireless or wire-line, plus services such as, ISDN and SONET/SDH capabilities with the capacity to handle as few as 100 lines economically up to multiple remotes and large metropolitan systems. 5Express® Computer programs for diagnosing and analyzing faults in telecommunications systems. 900 Megahertz (MHz) The frequency band in cordless telephones dedicated by the Federal Communications Commission to miscellaneous applications. The 902 to 928 MHz frequency band enables signals to penetrate walls and other physical barriers more easily than conventional cordless telephones. See Radio Spectrum. |
