2N BRI Lite/Enterprise v1.1 - Manual (Page 106)

List of Abbreviations 8.3
106
 LED (Light Emited Diod)
Electric light-emitting semi-conductor component.
 NT (Network Termination)
Network terminal for interconnecting a user line from an ISDN telephone with
the provider‟s external network, a PBX gateway or 2N BRI Enterprise / BRI
Lite gateway, for example.
 PC (Personal Computer)
IBM PC compatible personal computer.
 PCB (Printed Circuit Board)
 PIN (Personal Identification Number)
SIM card code against unauthorised use.
 BRI (Basic Rate Interface)
Type of ISDN connectino with 2 channels with 64 Kbps each.
 PUK (Personal Unblocking Key)
Code for SIM card unblocking after repeated PIN entering error.
 SIM (Subscriber Identity Module)
Modul with a chip for identification in the GSM network.
 SMS (Short Message Service)
Short text message transmitting service in GSM networks. Short text
messages.
 SSH (Secure Shell)
Secured communciation protocol for LANs, program.
 SW (Software)
Program, programové vybavení
 TCP (Transmission Control Protocol)
 TE (Terminal Equipment)
Terminal equipment on the user side (such as ISDN telephone, fax, router,
etc.), connected to the NT port only.
 UCMD
Protocol used for gateway firmware upgrade.
 UDP (User Datagram Protocol)
Transport layer protocol with non-guaranteed packet delivery.
 UMTS (Universal Mobile Telecommunication System)
3G system of the mobile phone standard, successor to GSM.
 UPS (Uninterruptible Power Supply)
Source of continuous power supply.
 USSD (Unstructured Supplementary Service Data)
Data transmission standard using GSM signalling channels.