UMTS network - "Universal Mobile Telecommunications System", UMTS represents an evolution in terms of capacity, data speeds and new service capabilities from second generation mobile networks enabling many extraordinary applications.
ADSL - Asymmetric Digital Subscriber Line: Modems attached to twisted pair copper wiring that transmit from 1.5 Mbps to 9 Mbps downstream (to the subscriber) and from 16 kbps to 800 kbps upstream, depending on line distance.
B-Channel - Bearer Channel. The fundamental component of an ISDN circuit, the bearer channel carries either voice or data at 64000 bits per second (64 kbps) in either direction.
Bit - The elementary constituent of digital information, the value of which can take only the forms 0 or 1. Bits are often measured by adding prefixes to signify a value.
BRI - Basic Rate Interface. An ISDN subscriber line , consisting of two 64kbps B channels (bearer channels) and one 16kbps D channel (used for signaling and synchronization purposes) - often referred to as 2 B's and a D. Bridge - An interconnection device that can connect LANs using similar or dissimilar media and signaling systems such as Ethernet, Token Ring and X.25. The bridge is also called a data link relay or level 2 relay. Connects remote sites over dedicated or switched lines to create WANs. Also a device that allows multiple locations (more than 2) to videoconference simultaneously.
Broadband - Digital signals delivered (along with analog signals) over a copper medium to businesses and households. Typically refers to an Internet connection via a cable modem or DSL line with speeds of 1 Mbps to 10 Mbps. Broadcast Transmission of data to everybody on the network or network segment.
Byte - A word made up of eight bits of information. One byte is the amount of information required to represent one character.
CDR or Call Detail Record - Information in a simple text format that can be used as input to third party billing programs or other software for billing purposes.
Channel - A signal path of specified bandwidth for conveying information such as voice, data and video.
D-Channel - The data signaling channel of an ISDN line . This channel is used to carry call control messages between the ISDN terminal and the public switch
DECT - is a digital wireless technology which originated in Europe , but is now being adopted increasingly worldwide, for cordless telephones, wireless offices and even wireless telephone lines to the home. The younger brother of GSM - Global System for Mobile - it is by contrast a radio access technology, rather than a comprehensive system architecture; DECT has been designed and specified to inter work with many other types of network, such as the PSTN (conventional telephone networks), ISDN (new digital and data phone networks), GSM (mobile phone networks) and more.
DTMF or Dual Tone Multi-Frequency signals - Also called touch-tone dialing. The tones that are heard when you press the buttons on a touch-tone telephone. DTMF assigns a specific frequency (consisting of two separate tones) to each key.
Gateway - A network element that performs conversions between different coding and transmission formats. The gateway does this by having many types of commonly used transmission equipment and / or circuits from different carriers to provide a means of interconnection.
Intercom - An Intercom (door phone, door entry, entry systems) is an electronic communications system within a building or group of buildings. Intercoms are generally composed of fixed microphone/speaker units which connect to a central control panel.
IP - Internet Protocol.A packet-based protocol for delivering data across networks .
IP Address - The unique address of a computer attached to the TCP/IP network. IP addresses are 32 bits long. Each octet is represented in the decimal format and separated by dots.
IP PBX - IP PBX is a customer premises telephone system that manages telephones in the enterprise and acts as the gateway to external networks. Unlike a conventional PBX that requires two separate networks, one each for data and voice, an IP PBX is based on converged networks that enable true one-wire to the desktop connection. An IP PBX can be used with IP phones , soft phones and traditional phones connected to Ethernet adapters (ATA) or PCs.
IP telephony - (Internet Protocol telephony, also known as Voice ove rIP telephony) A general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). The basic steps involved in originating an IP Telephony call are conversion of the analog voice signal to digital format and compression/translation of the signal into Internet protocol (IP) packets for transmission over the Internet or other packet-switched networks; the process is reversed at the receiving end. The terms IP Telephony and Internet Telephony are often used to mean the same; however, they are not 100 per cent interchangeable, since Internet is only a sub case of packet-switched networks. For users who have free or fixed-price Internet access, IP Telephony software essentially provides free telephone calls anywhere in the world. However, the challenge of IP Telephony is maintaining the quality of service expected by subscribers. Session border controllers resolve this issue by providing quality assurance comparable to legacy telephone systems.
ISDN or Integrated Services Digital Network - A set of standards that provide a common architecture for the development and deployment of digitally integrated communications services. A set of standardized customer interfaces and signaling protocols for delivering digital circuit-switched voice / data / video and packet-switched data services.
IVR - Interactive Voice Response - is a software application that accepts a combination of voice telephone input and touch-tone keypad selection and provides appropriate responses in the form of voice, fax, callback, e-mail and perhaps other media. IVR is usually part of a larger application that includes database access. Common IVR applications include: bank and stock account balances and transfers, surveys and polls, caller authorization centers
ISDN GSM Gateway Lite - This ISDN GSM Gateway (GSM router) connected to a PBX ISDN port (BRI, So) transmits GSM services to ISDN user terminals. In addition to cost-efficient calls, it provides the following services: calling line identification presentation (CLIP), connection status displaying, advice of charging (AOC), SMS send/receive using the ISDN telephone set, and billing data recording.
LAN or Local Area Network - A network of computers in a confined area, such as a room or building. A LAN accessed with Internet technologies can be considered an Intranet. Typically, LANs operate at what is considered to be a high bandwidth speed.
LCD - Liquid Crystal Display - A display that consists of two polarizing transparent panels and a liquid crystal surface sandwiched in between. Voltage is applied to certain areas, causing the crystal to turn dark. A light source behind the panel transmits through transparent crystals and is mostly blocked by dark crystals.
Mobility Extenstion is a device that helps connect any end user's mobile phone to your PBX as a standard office extension. It allows you to use PBX functions even if you are working out of your office. It is a complementary product to any PBX connectable to the internal side via analog extension lines of the PBX.
PBX - Private Branch Exchange - An in-house telephone switching system that interconnects telephone extensions to each other as well as to the outside telephone network.
Point to Multipoint - A session between one location and many points.
Point to Point - A session between two points only.
PRI or Primary Rate Interface - An ISDN subscriber line, consisting of 32 64kbps B bearer or user channels and one 64kbps D channel used for signaling and synchronization.
PSTN or Public Switched Telephone Network - A worldwide voice telephone network. Once only an analog system, the heart of most telephone networks today is all digital.
SMS - transmission of short text messages to and from a mobile phone, fax machine and/or IP address. The messages may not be longer than 160 alpha-numeric characters and contain any images or graphics.
Switch - A mechanical or solid state device that opens and closes circuits, changes operating parameters or selects paths for circuits on a space or time division basis.
UMTS Networks - "Universal Mobile Telecommunications System", UMTS represents an evolution in terms of capacity, data speeds and new service capabilities from second generation mobile networks enabling many extraordinary applications.
VoIP - Voice over IP - The capability to carry normal telephony-style voice over an IP-based Internet or data links with POTS-like functionality, reliability, and voice quality. VoIP enables a router to carry voice traffic (for example, telephone calls and faxes) over an IP network.
WAN or Wide Area Network - A data network typically extending a LAN outside a building or beyond a campus. Typically created using bridges or routers to connect geographically separated LANs.
Wi-Fi (Wireless Fidelity) - Wi-Fi is the popular term for a high-frequency wireless local area network (WLAN). The Wi-Fi technology is rapidly gaining acceptance in many companies as an alternative to a wired LAN. It can also be installed for a home network. |
