2N TELEKOMUNIKACE a.s., www.2n.cz
147/152
8.2 List of Abbreviations
List of abbreviations:
API (Application Programming Interface)
ASR (Answer Seizure Ratio)
BIOS (Basic Input–Output System) A basic set of instructions adn functions
necessary for PC launch.
CD (Compact Disc) A portable optical medium for digital data storing.
CDR (Call Data Record)
CLIP (Calling Line Identification Presentation)
CLIR (Calling Line Identification Restriction)Unknown calling subscriber.
COM PC serial port, RS–232.
DHCP (Dynamic Host Configuration Protocol) Automatic IP address assignment
protocol.
DNS (Domain Name Server) Server responsible for transfer between IP
addresses and domain names.
DTMF (Dual Tone Multifrequency)Tone dialling.
ESME (
)
External Short Messaging Entity
FW (Firmware)Similar to SW, used for control microprocessor program name.
GMT (Greenwich Mean Time)Mean time for time zone calculations.
GSM (Group Switched Mobile system)Current digital mobile telephone network
standard.
GPRS (General Packet Radio Service)High–speed data transmission with packet
commutation in GSM.
HW (Hardware)Electronic equipment, circuit, board and similar components.
IMEI (International Mobile Equipment Identity) Unique number assigned by the
GSM module manufacturer.
IMSI (International Mobile Subscriber Identity) Unique SIM card number assigned
by the GSM provider.
IP Address of the device within a network.
LAN (Local Area Network)
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.
POP3 (Post Office Protocol v3)