Knowledge

BRI/BRA - (Basic Rate Interface/Access)
Basic access to the ISDN network. This access enables simultaneous statement of 2 channel transmission bit rate of 64 kb / s each (eg. Internet connection and a phone call). This access is being built on the basis of existing analog links. This access allows you to connect up to 8 terminal devices with the ability to give each device a separate MSN.

CLIP
(Calling Line Identification Presentation) the service consists in presenting the display of your phone (or a special adapter to the phone) number of the person calling you. Service provide fixed networks and mobile networks. Presentation of the calling line. Service to recognize your caller before answering.

CLIR
(Calling Line Identification Restriction) is a service consisting in blocking the presentation of his telephone number - calling the other person your number will not be presented, even if the person you are calling has activated CLIP service. The service is provided by fixed network operators and mobile networks.

CT
(Call Transfer) this is a service that allows transfer accepted a call to another person.

CW
(Call Waiting) it is information about call waiting - during a call, the subscriber is informed of the signal in your handset that someone else is trying to reach you (if someone wants to call). After receiving such a signal, the subscriber can reject the new incoming call, hang up now ongoing call and answer the waiting, answer a waiting call, maintaining ongoing.

DDI
(Direct Dialling In) it is a service used in the PABX, involving the possibility of direct dialing to internal PABX without the participation of an intermediary such. telephonist - each user PABX has a city number, which is created in the PABX, on the basis of the numbering purchased from the operator. The minimum number of numbers which provides the operator is 10 pcs., Which means that the 10 internal users can have the city numbers. Direct dialing extension. The service is available both on access BRI and PRI allows direct (without the switchboard) with a specific extension. One ISDN line is allocated a pool of consecutive numbers differ only in the final digits.

DECT
(Digital Enhanced Cordless Telephony) this is the standard for digital wireless telephony, using the band 1880 - 1900 MHz. It works over short distances, using the call setup between the telephone network connected to the base station system and the mobile handsets, 10 radio channels, which can be reproduced by the use of TDMA multiplexing time, so the system can simultaneously support up to 120 subscribers. The technology of digital voice and data transmission in the band of 1.88 - 1.9 GHz allows for a very good voice quality and additional services.


DISA
(Direct Inward System Access) it is a service available in the PABX, of being able to integrate voice message in which it is contained information about which extension (only with touch-tone phone) to connect to the right person or department of the company. For example, the announcement might be: You've reached XXX, select DTMF extension number: 10 sales department, service 11, fax 12 or wait for notification of a switchboard.

DTMF
(Dual Tone Multi Frequency) is the name used multitone signaling devices telephone keypad buttons. Each numeric button is assigned two simultaneous sound frequencies, which components you press the button is transmitted to the device on the other side of the line (eg. to a telephone exchange to connect with another person).

EDGE
(Enhanced Data Rates for Global Evolution) it is a technology packet data transmission in mobile networks (eg. access to the Internet from a laptop by appropriate modem), enabling transmission at speeds up to 400 kbit/s.

FXO
(Foreign Exchange Office) it is a port for receiving a signal from the telephone network (continuous tone and beep tones heard later in the handset). To connect this port, eg. A traditional analog telephone line PSTN, just to get the phone connected to the gate signal from the analogue network or to be able to answer the phone if someone calls the number in the analogue network. Type sockets and plugs RJ 11.

FXS
(Foreign Exchange Station) it is a port for connecting analog phone. Generally speaking, the port sends a signal to a mobile telephone (continuous tone and beep tones heard in the handset). This port connect the phone to be able to chat and receive phone calls or send and receive faxes. Type sockets and plugs RJ 11.

GPRS
(General Packet Radio Service) it is a technology in mobile telephony, which allows you to send and receive data in the form of packets, at speeds up to 115 kbit / s. This technology enabled the introduction of fees depending on the amount of data sent and received, and independent of the duration of the call.

GSM
(Global System for Mobile Comunication) it is a standard technology used in mobile phone for making calls (voice transmission), data (Internet access), and multimedia messaging, and text messages. The global wireless mobile communication system. Digital wireless communication system through global standards to allow use of mobile phones in most countries of the world. This system uses 3 different frequencies: 900, 1800 and 1900 MHz.

GSM gateway
(Fixed Cellular Terminal, FCT) this is type of communication device, whose main task is to enable the subscriber landline telephone making calls to a GSM subscriber not using the fixed network but using the GSM network.

GSM gateway is in fact a kind of mobile phone, in which, however dialing a number and the call is made using the keyboard, microphone and loudspeaker of the phone wire is connected to the gate of an ordinary telephone cord. Depending on the gate wired phone can work as a standard POTS or ISDN. Instead, the phone can also be used telephone exchange PBX.

The GSM gateways are installed in the usual SIM card issued by one of the mobile operators. This allows users to landline phones can make calls to the GSM network at a lower price as they usually call costs between subscribers of the GSM network are lower than the cost of calls from the PSTN to the GSM network. Subscribers to the network PBX installed LCR and equipped with a GSM gateway may not even know that their calls are routed via the GSM network.

this is type of communication device, whose main task is to enable the subscriber landline telephone making calls to a GSM subscriber not using the fixed network but using the GSM network.

GSM gateway is in fact a kind of mobile phone, in which, however dialing a number and the call is made using the keyboard, microphone and loudspeaker of the phone wire is connected to the gate of an ordinary telephone cord. Depending on the gate wired phone can work as a standard POTS or ISDN. Instead, the phone can also be used telephone exchange PBX.

The GSM gateways are installed in the usual SIM card issued by one of the mobile operators. This allows users to landline phones can make calls to the GSM network at a lower price as they usually call costs between subscribers of the GSM network are lower than the cost of calls from the PSTN to the GSM network. Subscribers to the network PBX installed LCR and equipped with a GSM gateway may not even know that their calls are routed via the GSM network.

ISDN
(Integrated Digital Network) the network enables realization of services available so far apart. Transferring data in a fully digital telecommunications services (chat, conferencing, video conferencing). On the ISDN link information is transmitted at 64 kb / s, call connecting time is short (<1 sec.), Guaranteed quality, is practically impossible to eavesdrop on the conversation.

LCR
(Least Cost Route) service telephone exchanges PABX consists in the fact that the system is able to automatically direct outbound traffic to the network operator, GSM gateway and VoIP gateway so that the cost of the call was the lowest. You do not have to choose any prefix, this is done without his knowledge. For example, if the control panel is connected to the network 2 operators, one of which offers lower rates for local calls and another straddling the panel can based on the dialed number to identify the connection type and choose a cheaper provider. It could also be the same operator, from whom we bought two phone lines different tariffs; in this case you are selected lower tariff.

LTE
(Long Term Evolution) is a technology that allows wireless data transmission at speeds up to 300 Mb / s. It allows the use of advanced services, such as interactive TV, new forms of entertainment and professional business solutions.

MSN
(Multiple Subscriber Number) this is a service, which makes ISDN subscribers assign several phone numbers for the main number (service used in ISDN BRA - up to 8 MSNs).
MVNO
(Mobile Virtual Network Operator) the operator who does not have their own networks and network infrastructure, and to provide their own services using existing network operators.

NMT
(Nordic Mobile Telephone) analog cellular system. The system allows the conversation by sending an analog signal. In Poland, this system worked Centertel mobile network. Was used bandwidth of 450 MHz.

NT
(Network Terminal) it is a kind of network terminal terminating link supplied to the customer, eg. ISDN.

PABX
(Private Automatic Branch Exchange) this is an automatic telephone exchange creates a network of telephone companies or institutions, which are connected subscriber lines PSTN or ISDN telecommunications operator. To a telephone exchange PABX can also be connected to GSM gateway (via the analogue or ISDN ports) allows making calls through the GSM net.

POTS
(Primary Old Telephone Services) this is the basic telephone service, which allows for the implementation of analog phone calls, often in this way is called an analogue line, in which telephone calls are executed in the band 300 ÷ 3400 Hz.

PPP
(Point to Point Protocol) this is a standard communications protocol in the Internet, a point - the point used to connect to dial-up Internet access.

PREFIX
It is a sequence of numbers of the form 10XX or 10xxx (where X is any digit) identifying the telecommunications operator. Telecom operators and implemented by the customers of these operators, telecommunication connections are identified in telecommunication networks through the given prefix.
In the nomenclature of the official prefix is called the number of network access (NDS).
Prefixes allow a certain sense of communication between customers and telecommunication networks (which are owned telecom operators), the customer indicates in this case by the prefix, the network of the operator is to be carried out connection.

PRESELEKCJA
This is the choice for the telecom operator implemented with landline local calls, long distance, international, to mobile networks and dial-up. This choice is made at the request of the subscriber and implemented in a telephone TPSA. This allows you to automatically skip or 10xxx prefix 10XX (where X is any digit) during the dialing by subscriber - this prefix is added automatically by the telephone exchange.

PSTN
(Public Switched Telephone Network) is the public telephone network using switched technology combines (interconnecting the caller telephone line). In this network automatically combining channels of conversation between subscribers through telephone exchanges. Circuit switching is carried out in the same network PSTN, ISDN networks, GSM networks (mobile), as well as VoIP subscribers.

RJ 11
This is the standard telephone interface physical (plug socket), which has four contacts. Connects the telephone with the handset eg. Cable torsion or telephone to the telephone jack.

RJ 45
This is the standard telephone interface physical (plug socket), which has eight contacts. Most commonly used in data networks or ISDN. Popularly called Ethernet connector.

RS 232
It is a standard interface for data transmission, most often used to exchange data between the network device (modem, a data buffer) and the terminal, eg. for programming the device, or download data from it. This standard provides transmission of serial bit by bit, in a way asynchronous or synchronous.

this is the standard telephone interface physical (plug socket), which has eight contacts. Most commonly used in data networks or ISDN. Popularly called Ethernet connector.
this is the standard telephone interface physical (plug socket), which has eight contacts. Most commonly used in data networks or ISDN. Popularly called Ethernet connector.
it is a standard interface for data transmission, most often used to exchange data between the network device (modem, a data buffer) and the terminal, eg. for programming the device, or download data from it. This standard provides transmission of serial bit by bit, in a way asynchronous or synchronous.

TA
(Terminal Adapter) adapter for connecting to the ISDN network of traditional analog devices (telephone, fax).

UMTS
(Universal Mobile Telecommunications System) it is a technology packet data transmission in mobile networks, enabling transmission speeds delinquent in Mbit/s - the equivalent of broadband technology wired.

V90
Currently, the highest transmission protocol which regulates the transfer of data between the modems. It enables transmission at a rate of 56000 bits per second.

VoIP
(Voice over IP) It is a telephony using technologies for speech coding (audio) and sending it through the packet-switched network (eg. Internet) to another user of the network or the user's traditional telephone (analog or ISDN). Voice transmission via the Internet.

VPN
(Virtual Private Network) it is a virtual private network created by the companies and institutions based on public networks such as the Internet, by creating access paths between terminal devices in which data can be compressed and encrypted.
A separated part of operating within a public network (resource provider, the Internet). The recipient of VPN services are companies with few to several hundred branches, both in the country and outside the country. VPN creates a corporate network used to exchange data between the branches of the Client. In addition, to ensure the implementation of voice.