Acronym Term 3G Third Generation 3GPP 3rd Generation Partnership Project AAL ATM Adaptation Layer ACD Automatic Call Distributor ACFC Address and Control Field Compression ACK Acknowledgment ACM Address Complete Message ACR Apply Charging ADPCM Adaptive Delta Puls Code Modulation ADSL Asymmetrical Digital Subscriber Line AGCOM Autorità per le garanzie nelle comunicazioni ALF Application Layer Framing APN Access Point Name ARCEP Autoritè de Règulation des Communications Electroniques et des Postes ARPU Average Revenue Per User ASCII American Standard Code for Information Interchange ASN.1 Abstract Syntax Notation 1 ATA Analog Telephone Adaptor ATM Asynchronous Transfer Mode AuC Authentication Center BAIC Barring of all incoming calls (Call barring services) BAOC Barring of outgoing calls (Call barring services) BCSM Basic Call State Model BGP Border Gateway Protocol, Routing Protocol BICRoam Barring of all incoming calls except home country (Call Barring services) BIRO Barring of mobile terminated calls when romaing in VPLMN country BOIC Barring of international calls (Call barring services) BOICexHC Barring of international calls except home country (Call barring services) BORO Barring of mobile originated calls when romaing VPLMN country BPO Business Process Operator bps Bits per Second BS Base Station BSC Base Station Controller BSS Base Station Subsystem (GSM) BSS Business Support Systems CAMEL Customized Applications for Mobile Enhanced Logic CAP Camel Application Part, a protocol used in CAMEL servers CAPI Common ISDN Application Programming Interface CB Call Barring CBC Cypher Block Chaining Mode CC Contributing Source Count CC Country Code CCITT Comite Consultatif International Telephonique et Telegraphique, ancestor of ITU CCS Common Channel Signalling CD Call Deflection CdPN Called Party Number CDR Call Detail Record CFB Call forwarding on mobile subscriber busy CFNA call forwarding no answer CFNRc Call Forwarding on subscriber not reachable (immediate forwarding/diverting) CFNRy Call Forwarding on subscriber does not reply (delayed forwarding/diverting) CFU Call Forwarding unconditional CgPN Calling Party Number CHAP Challenge Handshake Authentication Protocol CLI Command Line Interface CLIP Calling Line Identification Presentation (Number Presentation Services) CLIR Caller Line ID Restriction CLIR Calling Line Identification Restriction (Number Presentation Services) CMT Comision del Mercado de las Telecomunicaciones CNAME Canonical Name CNAP Calling Name Presentation COLP Connected Line Identification Presentation COLR Connected Line Identification Restriction CORBA Common Object Request Broker Architecture CSD Circuit Switched Data CSI CAMEL Subscription Information CSRC Contributing Source Identifiers CW Call Waiting DCE Data Communications Equipment DCS1800 Digital Communications System 1800 MHz DECT Digital Enhanced Cordless Telecommunications DES Data Encription Standard DHCP Dynamic Host Configuration Protocol DIAMETER An AAA protocol, predecessor of RADIUS DLPI Data Link Provider Interface DMZ Demilitarized zone DNS Domain Name System DP Detection Point DSL Digital Subscriber Line DSLAM Digital Subscriber Line Access Multiplexer DSS1 Digital Subscriber Signalling 1 DTE Data Terminal Equipment DTMF Dial Tone Multi-Frequency DVI Digital Video Interface, Intel Real-Time Video DVMRP Distance Vector Multicast Routing Protocol E1 European Digital Signal Level 1 (2 Mbps) E3 European Digital Signal Level 3 (34 Mbps) EAI Enterprise Application Integration ECT Explicit Call Transfer EDGE Enhanced Data rates for GSM Evolution EDP Event Detection Point EIR Equipment Identity Register ENUM Telephone Number Mapping ERD Enitity Relationship Diagram eTOM enhanced Telecom Operations Map ETSI European Telecommunications Standards Institute EVN Einzelverbindungsnachweis, German term for itemized (telephone) bill FAC Final Assembly Code FDN Fixed Dialing Numbers FIFO First In First Out FMC Fixed Mobile Convergence FNR Flexible Numbering Register FTP File Transfer Protocol GGSN GPRS Gateway Support Node GIA General Interconnection Agreement GMSC Gateway MSC GPRS General Packet Radio Service GPS Global Positioning System GRX GPRS Roaming Exchange GSM Global System for Mobile Communications GSM Group Speciale Mobile GSM-R Global System for Mobile Communications - Railway gsmSCF GSM Service Control Function gsmSRF GSM Specialized Resource Function gsmSSF GSM Service Switching Function GT Global Title GTP GPRS Tunneling Protocol GTT Global Title Translation GW Gateway H.323 ITU-T Recommendation H.323 HDLC High-Level Data Link Control HDSL High bitrate Digital Subscriber Line HLR Home Location Register HOLD Call Hold HPLMN Home PLMN HSCSD High Speed Circuit Switched Data HSDPA High-Speed Downlink Packet Access HSUPA High Speed Uplink Packet Access HTTP Hypertext Transfer Protocol IAM Initial Address Message ICCID Integrated Circuit Card ID ICMP Internet Control Message Protocol IEEE Institute of Electrical and Electronics Engineers IETF Internet Engineering Task Force IGMP Internet Group Management Protocol IGP Interior Gateway Protocol, Routing Protocol ILP Integrated Layer Processing IMAP Internet Message Access Protocol IMEI International Mobile Equipment Identity IMPS Instant Messaging and Presence Service IMS IP Multimedia Subsystem IMSI International Mobile Subscriber Identity IN Intelligent Network INAP Intelligent Network Application Part IP Internet Protocol IP Intelligent Peripheral IPCP PPP Internet Protocol Control Protocol IPLMN Interrogating PLMN IPSec IP security IPv4 Internet Protocol Version 4 IPv6 Internet Protocol Version 6 IPX Internetwork Packet Exchange Protocol ISC International Switching Centre ISDN Integrated Services Digital Network ISP Internet Service Provider (Internet Context), Independent Service Provider (GSM Context) ISUP ISDN User Part ITIL IT Infrastructure Library ITP IP Transfer Point ITU International Telecommunication Union IVR Interacitve Voice Responder kbps KiloBits per Second L2TP Layer Two Tunneling Protocol LAN Local Area Network LBS Location Based Services LCP Link Control Protocol LDAP Lightweight Directory Access Protocol LLC Logical Link Control LPC Linear Predictive Codec M2PA MTP Level 2 Peer Adaptation M2UA MTP Level 2 User Adaptation M3UA MTP Level 3 User Adaptation Layer MAN Metropolitan Area Network MAP Mobile Application Part MBONE Multicast Backbone MCA Missed Call Alert MCC Mobile Country Code MCU Multipoint Control Unit MGW Media Gateway MGw Media Gateway MIB Management Information Base MIME Multipurpose Internet Mail Extensions ML Move Leg MM1 MMS protocol being used between mobile terminal and MMSC MM3 MMS protocol being used between external servers like e-mail server and MMSC MM4 MMS protocol being used for MMSC interconnection MM7 MMS protocol being used by large accounts (contents provider) to access MMSC MMS Multimedia Messaging Service MMSC Multimedia Messaging Service Center MMSI Maritime Mobile Service Identity MNC Mobile Network Code MNO Mobile Network Operator MNP Mobile Number Portability MO Mobile Originated MOC Mobile Originated Call MPTY Multi Party Service (GSM service for multipoint calls) MS Mobile Station MSB Most Significant Bit MSC Mobile service Switching Centre MSC-S MSC Server MSIN Mobile Station Identification Number MSISDN Mobile Subscriber ISDN Number, Mobile Station International Subscriber Directory Number, Mobile Station ISDN Number MSN Multiple Subscrib. Number MSRN Mobile Station Roaming Number MSS Mobile Soft Switch MT Mobile Terminal MT Mobile Terminated MTA Message Transfer Agent MTC Mobile Terminated Call MTP Message Transfer Part MTTD Mean Time To Detection MTU Maximum Transmission Unit MVNE Mobile Virtual Netwok Enabler MVNO Mobile Virtual Network Operator NCP Network-Layer Control Protocol NDC National Destination Code NI Network Indicator NIC Network Information Center NISDN Narrowband ISDN NP Numbering Plan NPDB Number Poratbility Database NRN Network Routing Number NSDU Network Service Data Unit NSP Network Services Part NSS Network and Swirching Subsystems (GSM) NTP Network Time Protocol NUP National User Part (SS7) O&M Operations and Maintenance O-BSCM Origintating Basic Call State Model O-CSI Originating CAMEL Subscription Information OCCF Operator Controlled Call Forwarding ODBC Open Database Connectivity OMA Open Mobile Alliance OMC Operations and Maintenance Center ORLCF Optimal Routing at Late Call Forwarding OSA Open Service Access OSI Open Systems Interconnection OSPF Open Shortest Path First, Routing Protocol OSS Operator Specific Service OSS Operations Support Subsystem (GSM) OTA Over The Air OTAP Over The Air Provisioning OVIS HP OpenView Internet Services (tm) PAP Password Authentication Protocol PBX Private Branch eXchange PC Point Code PCH Packet Charger PCM Puls Code Modulation PCU Packet Control Unit PDH Plesiochronous Digital Hierarchy PDP Packet Data Protocol PDU Protocol Data Unit PFC Protocol Field Compression PIC Point in Call PIM Protocol Independent Multicast PIM Personal Information Management PIN Personal Identification Number PLMN Publc Land Mobile Network POI Point of Interconnection POP Post Office Protocol PoP Point of Presence POTS Plain Old Telephone System PPP Point-to-Point Protocol PPP Point to Point Protocol PPPoE Point-to-Point Protocol over Ethernet PPTP Point-to-point tunneling protocol PRI Primary Rate Interface PSTN Public Switched Telephone Network PUK Personal Unblocking Key PVC Permanent Virtual Circuit PVN Private Virtual Network QoS Quality of Service RADIUS Remote Authentication Dial In User Service RAN Radio Access Network RARP Reverse Address Resolution Protocol RED Random Early Detection RF Radio Frequency RFC Request for Comments RI Routing Indicator RIP Routing Information Protocol RSVP Resource Reservation Protocol RTCP RTP Control Protocol RTCP Real-Time Transport Control Protocol RTP Real-time Transport Protocol RTT Round Trip Time SAP Service Access Point SAP Session Announcement Protocol SAP SIM Access Profile SAT SIM Application Toolkit SC Service Center (for SMS) SCCP Signaling Connection Control Part SCF Service Control Function SCP Service Control Point SDH Synchronous Digital Hierarchy SDP Session Description Protocol SDR Service Detail Record SEI Software Engineering Institute SGSN Serving GPRS Support Node SIGTRAN Signaling Transport SIM Subscriber Identity Module SIP Session Initiation Protocol SLA Service Level Agreement SLIP Serial Line Internet Protocol SLO Service Level Objective SM Short Message SMB Server Message Block Protocol SMF Service Management Function SMPP Short message peer-to-peer protocol SMS Short Message Service SMSC Short Message Service Center SMTP Simple Mail Transfer Protocol SN Subscriber Number SNMP Simple Network Management Protocol SNR Serial Number SOA Service-Oriented Architecture SOAP Simple Object Access Protocol SONET Synchronous Optical Network SP Service Provider SPX Sequenced Packet Exchange SRF Signalling Relay Function SRI Send Routing Information (MAP) SS-CSI Supplementary Service Notification CAMEL Subscription Information SS7 Common Channel Signaling System No. 7 SSF Service Switching Function SSL Secure Socket Layer SSP Service Switching Point SSRC Synchronisation Source Identifier STP Signal Transfer Point STUN Simple Traversal of UDP (User Datagram Protocol) through NATs (Network Address Translators) SVC Switched Virtual Circuit T-BCSM Terminating Basic Call State Model T-CSI Terminating CAMEL Subscription Information TAC Type Approval Code TACACS Terminal Access Controller Access Control System TAP Transferred Account Procedure TCAP Transaction Capabilities Application Part TCP Transmission Control Protocol TDD Time Division Duplex TDM Time Division Multiplexing TDSV Telekommunikations-Datenschutzverordnung TKG Telekommunikationsgesetz TKUeV Telekommunikations-Ueberwachungsverordnung TLNV TeilnehmerverhŠltnis TOS Type-Of-Service (IP) TR Technical Reference TTL Time To Live TUP Telephony User Part UDP User Datagram Protocol UE User Equipment UMA Unlicensed Mobile Access UML Unified Modeling Language UMTS Universal Mobile Telecommunications System UNI User to Network Interface URL Uniform Resource Locator USIM Universal Subscriber Identity Module USSD Unstructured Supplementary Service Data UTRAN Universal Terrestrial Radio Access Network VADSL Very high bitrate Asymmetrical Digital Subscriber Line VC Virtual Circuit VDSL Very-high-bit-rate Digital Subscriber Line VHDSL Very High bitrate Digital Subscriber Line VLAN Virtual Local Area Network VLR Visitor Location Register VMS Voice Mailbox System VMSC Visited Mobile Switching Centre VoD Video on Demand VoIP Voice over IP VPLMN Visited PLMN VPN Virtual Private Network VRF Virtual Routing and Forwarding WAN Wide Area Network WAP Wireless Application Protocol WFQ Weighted Fair Queuing WiFi Wireless Fidelity (WLAN) WIN Wireless Intelligent Network WLAN Wireless LAN WML Wireless Markup Language WPAN Wireless Private Area Network (IEEE 802.15.4) also called ZigBee protocol WSP Wireless Session Protocol WWW World Wide Web X.25 ITU protocol for packet switched WAN networks XML Extensible Markup Language
