A chunk of data used for the transfer of packet-switched systems.
Private Branch Exchange - is a telephone exchange which makes connections among the internal telephones of a private organization and also connects them to the public switched telephone network (PSTN) via trunk lines. The primary advantage of PBXs is cost savings on internal and external phone calls.
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A relay between one spot and many points. Example: the communication between a mobile operator’s base station and a number of phones assigned to this base station.
A relay between two points. Example: a long-distance communication link.
Primary Rate Interface - a subscriber ISDN line that contains 30 user channels (B-channels, 64kbit/s per each) for transmission of user information , one D-channel (64kbit/s) used for signalization and one channel used for synchronization. PRI can carry up to 30 simultaneous phone calls.
Public Switched Telephone Network - the worldwide voice telephony network that consists of telephone lines, cables, cellular networks, etc., all interconnected by switching centres, thus allowing any telephone in the world to communicate with any other.
A PBX Booster is a device that can be connected to any existing private branch exchange via VoIP, ISDN or analogue interface. The PBX Booster can then fulfil not only a gateway function, but can bring you many other useful features such as 2N® Mobility Extension, IVR, VoiceMail, Email to SMS, SMS to Email, virtual conference rooms, etc.
Power over Ethernet describes a standardized system to pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices.
The Point-to-Point Protocol over Ethernet is a network protocol for encapsulating PPP frames inside Ethernet frames. Each client has its own PPP connection to an access point and the control of logging, billing, access to services is then implemented on the basis of a valid user login, not on the basis of his IP address.
Plug and play is a term for technology that allows you to connect hardware peripherals to the computer or other network devices, which simply recognize this hardware and automatically install all necessary drivers.