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3GPP 3rd Generation Partnership Project
3GPP2 3rd Generation Partnership Project 2
AAA Authentication, Authorization, Accounting
ACL Access Control List
AES Advanced Encryption Standard
AGW Access Gateway
AH Authentication Header
ALG Application-level gateway
ASN.1 Abstract Syntax Notation number One
ATM Asynchronous Transfer Mode
BcN Broadband convergence Network
BER Basic Encoding Rules
B-ISDN Broadband-Integrated Services Digital Network
BOOTP Bootstrap Protocol
CA Call Agent
CC Common Criteria
DES Data Encryption Standard
DHCP Dynamic Host Configuration Protocol
Diff-Serv Differentiated Service
DNS Domain Name System
DOCSIS Data Over Cable Service Interface Specification
DoS Denial of Service
DSVD Digital Simultaneous Voice and Data
DTMF Dual Tone Muti Frequency
DWDM Dense Wavelength Division Multiplexer
ENUM Telephone Number Mapping
ESP Encapsulating Security Payload
ETSI European Telecommunications Standards Institute
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124 VoIP Security
FCC Federal Communications Commission
FCP Firewall Control Proxy
FG-NGN Focus Group-Next Generation Networks
GW Gateway
HMAC Hash-based Message Authentication Code
ICE Interactive Connectivity Establishment
IETF Internet Engineering Task Force
IMTC International Multimedia Telecommunications
Consortium
ION Interoperability ON
IP Internet Protocol
IPv4 Internet Protocol version 4
IPv6 Internet Protocol version 6
IPsec Internet Protocol Security
IPTEL IP Telephony
ISUP ISDN User Part
ITU-T International Telecommunication Union-Telecom
Standardization
IWF Interworking Function
LDAP lightweight directory access protocol
M3UA MTP3-User Adaptation layer
MAC Message Authentication Code
MC Multi-point Controller
MCU Multi-Point Control Unit
MEGACO Media Gateway Control
MG Media Gateway
MGC Media Gateway Controller
MGCP Media Gateway Control Protocol
MIDCOM Middlebox Communications
MIKEY Multimedia Internet KEYing
MMUSIC Multiparty Multimedia Session Control
MOS Mean Opinion Score
MP Multi-point processor
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VoIP Security
MPLS Multi-Protocol Label Switching
MSEC Multicast Security
NAS Network Access Server
NAT Network Address Translation
NGN Next Generation Network
NIC Network Interface Card
N-ISDN Narrowband-Integrated Services Digital Network
NIST National Institute of Standards and Technology
NTP Network time protocol
PATS Publicly Available Telephony Service
PBX Private Branch Exchange
PGP Pretty Good Privacy
PKI Public Key Infrastructure
PSTN Public Switched Telephone Network
QoS Quality Of Service
RAS Registration, Admission, and Status
RGW Residential gateway
RSVP Resource Reservation Protocol
RTCP Realtime Transport Control Protocol
RTP Realtime Transport Protocol
RTSP Real Time Streaming Protocol
S/MIME Secure/Multipurpose Internet Mail
SAP Service Access Point
SBC Session Border Controller
SCCP Signaling Connection Control Part
SCTP Stream Control Transmission Protocol
SDP Synchronous Digital Hierarchy
SET Simple Endpoint Type
SG Signalling Gateway
SHA Session Initiation Protocol
SIGTRAN Signaling Translation
SIMPLE SIP for Instant Messaging and Presence Leveraging
Extensions
126 VoIP Security
SIP Session Initiation Protocol
SIP-T Session Initiation Protocol for Telephones
SLA Service Level Agreement
SMTP Simple Mail Transfer Protocol
SNMP Simple Network Management Network
SONET Synchronous Optical Network
SPAN Services and Protocols for Advanced Networks
SS7 Signaling System 7
SSL Secure Sockets Layer
STUN Simple Traversal of UDP through NATs
TCAP Transaction Capabilities Application Part
TELNET Teletype Network
TFTP Trivial File Transfer Protocol
TGW Trunking gateway
TISPAN Telecommunications and Internet converged Services
and Protocols for Advanced Networking
TLS Transport Layer Security
TRIP Telephony Routing over IP
TTA Telecommunications Technology Association
TURN Traversal using relay NAT
UA User Agent
UAC User Agent Client
UAS User Agent Server
URI Uniform Resource Identifier
uRPF Unicast reverse-path forwarding
VLAN Virtual LAN
VoB Voice over Broadband
VoCM voice over cable modem
VoIP Voice over Internet