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Glossary of Terms

Asterisk®

Asterisk® is a software implementation of a telephone private branch exchange (PBX); it was created in 1999 by Mark Spencer of Digium. Like any PBX, it allows attached telephones to make calls to one another, and to connect to other telephone services, such as the public switched telephone network (PSTN) and Voice over Internet Protocol (VOIP) services.

BRI

BRI, or Basic-Rate Interface, is the basic ISDN configuration, which consists of two B-channels that can carry voice or data at rate of 64Kbps, and one D-channel, which carries call-control information. Another type of ISDN configuration is called Primary-Rate Interface (PRI), which consists of 23 B-channels (30 in Europe) and one D-channel.

Elastix®

Elastix® is an open source unified communications server software that brings toGether IP PBX, email, IM, faxing and collaboration functionality. It has a Web interface and includes capabilities such as a call center software with predictive dialing.

FreePBX®

FreePBX® is an open source GUI (graphical user interface) that controls and manages Asterisk (PBX). FreePBX is licensed under GPL. FreePBX is a Registered Trademark of Schmooze Com Inc as of early 2013.

FreeSWITCH™

FreeSWITCH™ is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any other form of media. It was created in 2006 to fill the void left by proprietary commercial solutions.

FXO

FXO, or Foreign Exchange Office, is the interface on a VOIP device for connecting to an analog PBX extension.

FXS

FXS, or Foreign Exchange Station, is the interface on a VOIP device for connecting directly to phones, faxes, and CO ports on a PBX or key telephone systems.

Gateway

A Gateway is a node on a network that serves as an entrance to another network. In enterprises, the gateway is the computer that routes the traffic from a workstation to the outside network that is serving the Web pages. In homes, the gateway is the ISP that connects the user to the internet.

GSM

GSM, or Global System for Mobile Communications, is one of the leading digital cellular systems. GSM uses narrowband TDMA, which allows eight simultaneous calls on the same radio frequency.

IP PBX

IP PBX, or Internet Protocol Private Branch eXchange, is a telephone switch that supports VOIP. An IP PBX provides services similar to PBX services, but over data networks like a LAN or WAN rather than circuit-switched networks. IP PBX typically can switch calls between VOIP on local lines or between VOIP and traditional telephone users in the same way PBX does. IP PBX may also be seen abbreviated as IPPBX or IP/PBX.

ISDN

ISDN, or Integrated Services Digital Network, is an international communications standard for sending voice, video, and data over digital telephone lines or normal telephone wires. ISDN supports data transfer rates of 64 Kbps (64,000 bits per second).

PCI

PCI, or Peripheral Component Interconnect, is a local bus standard developed by Intel Corporation. Most modern PCs include a PCI bus in addition to a more general ISA expansion bus. PCI is also used on some versions of the Macintosh computer. PCI is a 64-bit bus, though it is usually implemented as a 32-bit bus. It can run at clock speeds of 33 or 66 MHz. At 32 bits and 33 MHz, it yields a throughput rate of 133 MBps. Although it was developed by Intel, PCI is not tied to any particular family of microprocessors.Computer bus for attaching peripheral devices to a computer motherboard.

PCI Express

PCI Express is an I/O interconnect bus standard (which includes a protocol and a layered architecture) that expands on and doubles the data transfer rates of original PCI. PCI Express is a two-way, serial connection that carries data in packets along two pairs of point-to-point data lanes, compared to the single parallel data bus of traditional PCI that routes data at a set rate.

POTS

POTS, or Plain Old Telephone Service, is the standard telephone service that most homes use. In contrast, telephone services based on high-speed, digital communications lines, such as ISDN and FDDI, are not POTS. The main distinctions between POTS and non-POTS services are speed and bandwidth. POTS is generally restricted to about 52 Kbps (52,000 bits/sec). The POTS network is also called the public switched telephone network (PSTN).

PRI

PRI, or Primary-Rate Interface, is a type of ISDN service designed for larger organizations. PRI includes 23 B-channels (30 B-channels in Europe) and one D-Channel. In contrast, BRI (Basic-Rate Interface), which is designed for individuals and small businesses, contains just two B-channels and one D-channel. PRI service is generally transmitted through a T-1 line or an E1 line (Europe).

VOIP

VOIP, or Voice over Internet Protocol, is a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN. One advantage of VOIP is that the telephone calls over the Internet do not incur a surcharge beyond what the user is paying for Internet access, much in the same way that the user doesn't pay for sending individual emails over the Internet.

VOIP PBX

VOIP PBX, or Voice over Internet Protocol (VOIP) private box exchange (PBX), is a business telephone system that provides services similar to a standard PBX, but does so over a company's LAN or WAN data network rather than through the circuit-switched networks used by the traditional Public Switched Telephone Network (PSTN). Also referred to as an IP PBX, VOIP PBX systems can typically switch calls between VOIP on local lines or between VOIP and traditional telephone users in the same way a PBX does. A VOIP PBX system can be hardware based or can function entirely as a software system.

VOIP Phone

VOoIP phones utilize packet-switched Voice over Internet Protocol (VOIP), or Internet telephony, to transmit telephone calls over the Internet as opposed to the circuit-switched telephony used by the traditional Public Switched Telephone Network (PSTN). The advantage to VOIP phone calls is that unlike regular long-distance calls, phone calls made through a VOIP phone service are free - there are no fees beyond the cost of your Internet access.

WCDMA

WCDMA, or wide-band CDMA (Code-Division Multiple Access), is a 3G technology that increases data transmission rates in GSM systems by using the CDMA air interface instead of TDMA. WCDMA is based on CDMA and is the technology used in UMTS. WCDMA was adopted as a standard by the ITU under the name "IMT-2000 direct spread".



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MAPLELEAF TECHNOLOGIES
MAPLELEAF TECHNOLOGIES is a pan-European distributor/e-tailer of premier VOIP Appliance, Gateway, IP PBX, and Voice/Data Card hardware telephony technologies and solutions.
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