A
AAA – Authentication, Authorization and Accounting. A suite of network security services that provides the primary framework through which you can set up access control on your router or access server.
AD – Abbreviated Dialing
ADSL – Asymmetric Digital Subscriber Line
ANI – Automatic Number Identification
AOR – Address of Record
API – Application Programming Interface
ASP – Application Service Provider
ASR – Answer Seizure Ratio
ATA – Advanced Technology Attachment
B
B2BUA – Back-to-Back User Agent
BH – Busy Hour
BHCA – Busy Hour Call Attempts
BHCC – Busy Hour Call Completion
BLF – Business Lamp Field
bps – Bits per Second
Bps – Bytes per Second
C
Call leg – A link or hop along the route from the calling party to the destination (called) party.
CDR – Call Detail Record
CLI – Command Line Interface
CLI, CLID – Calling Line Identification
CMS – Call Management Services
COMEDIA – Connection-Oriented Media
CPE – Customer Premise Equipment
CPS – Calls per Second
CRM – Customer Relationship Management
CSP – Communications Service Provider
CSCF – Call Service Control Function
D
DCE – Data Communications Equipment
DHCP – Dynamic Host Configuration Protocol
DID – Direct Inward Dialing
DNS – Domain Name System
DoS – Denial of Service
DSBC – Dispatching SBC
DSL – Digital Subscriber Line
DTE – Data Terminal Equipment
DTMF – Dual-Tone Multi-Frequency
DTLS – Datagram Transport Layer Security
E
E911 – Enhanced 911
F
FTTH – Fiber to the Home network
G
GK – Gatekeeper. The entity that maintains a registry of devices in an h323 network.
GPON – Gigabit Passive Optical Network
GSM – Global System for Mobile Communications
GUI – Graphical User Interface
GUID – Globally Unique Identifier (also called h323-conf-id). The identifier for end-to-end calls. A new GUID is assigned to each new call. There may be numerous calls within a single session.
GW – Gateway
H
HLR – Home Location Register
HTML – Hypertext Markup Language
HTTP – Hypertext Transfer Protocol
I
ICE – Interactive Connectivity Establishment
IM – Instant Messaging
IMS – IP Multimedia Subsystem
IP PBX – Internet Protocol Private Branch Exchange
IPTV – Internet Protocol Television
ISDN – Integrated Services Digital Network
ISP – Internet Service Provider
ITSP – Internet Telephony Service Provider
IVR – Interactive Voice Response
L
LAN – Local Area Network
LCR – Least Cost Routing
LDAP – Lightweight Directory Access Protocol
LTE – Long Term Evolution is a standard for wireless communication of high-speed data for mobile phones and data terminals
M
MAC – Media Access Control
MAC address – The physical address of a device on Ethernet.
MMS – Multimedia Messaging Service
MNO – Mobile Network Operator
MVNO – Mobile Virtual Network Operator
N
NANP – North American Numbering Plan
NAS – Network Access Server
NAT – Network Address Translation
NGN – Next Generation Network
O
OEM – Original Equipment Manufacturer
OLT – Optical Line Terminal. The endpoint of the service provider for GPON service provisioning
ONT – Optical Network Terminal. The end user endpoint, installed on the customer premises
OS – Operating System
P
PAI – P-Asserted-Identity
PBX – Private Branch Exchange
PCI – P-Charge-Info
PDA – Personal Digital Assistant
PDF – Portable Document Format
PIN – Personal Identification Number
POTS – Plain Old Telephony Service. Basic telephone service supplying standard single-line telephones, telephone lines, and access to PSTN.
PPI – P-Preferred-Identity
PPP – Point-to-Point Protocol
PRI – Primary Rate Interface
PSAP – Public-Safety Answering Point
PSTN – Public Switched Telephone Network
Q
QoS – Quality of Service
QR – Quick Response
R
RADIUS – Remote Authentication Dial-In User Service
RAM – Random Access Memory
RPID – Remote-Party-ID
RTCP – Real-Time Transfer Control Protocol
RTP – Real-Time Transport Protocol
S
SBC – Session Border Controller
SDP – Session Definition / Description Protocol
SDES – Session Description Protocol Security Descriptions
SG – Signaling Gateway
SIM Card – Subscriber Identify Module Card
SIP – Session Initiation Protocol
SMPP – Short Message Peer-to-Peer
SMS – Short Messaging Service
SOAP – Simple Object Access Protocol
SQL – Structured Query Language
SRTP – Secure Real-time Transport Protocol
SRV – Service Record
SS7 – Signal System 7
STUN – Session Traversal Utilities for NAT
T
TAS – telephony Application Server
TCP – transmission Control Protocol
Telco – A telephone company, such as LEC.
TFTP – Trivial File Transfer Protocol
TLS – transport Layer Security
TURN – traversal Using Relay NAT
U
UA – User Agent
UAC – User Agent-Client
UAS – User Agent-Server
UDP – User Datagram Protocol
UPnP – Universal Plug and Play
URI – Uniform Resource Identifier
URL – Uniform Resource Locator
V
VoIP – Voice over Internet Protocol
W
WAN – Wide Area Network
WebRTC – Web Real-Time Communication
X,Y,Z
xDR – Extensible Detail Record
XML – Extensible Markup Language