| AAA |
Authentication, Authorization, Accounting |
| ANSI |
American National Standards Institute. www.ansi.org |
| BRAS |
Broadband Remote Access Server, collects the output from DSLAMs |
| BSC |
Base Station Controller, a subsystem in a GSM mobile network |
| BTS |
Base Transceiver Station, a GSM base station |
| CALEA |
Communications Assistance for Law Enforcement Act (CALEA), U.S. Law |
| CC |
Communication Content |
| CDMA |
Code Division Multiple Access, standard second-generation (2G) network technology in the United States, Australia and other countries |
| CS |
Circuit Switched |
| DF |
Delivery Function |
| DRS |
Data Retention Suite |
| ETSI |
European Telecommunications Standards Institute (ETSI). www.etsi.org |
| GGSN |
Gateway GPRS Support Node |
| HI |
Handover Interface |
| IA |
Internet Access |
| IAP |
Interception Access Point, the point in the network at which interception takes place |
| ICD |
Interception Decision (warrant) |
| IIF |
Internal Interception Function |
| IMS |
IP Multimedia Subsystem (or Interception Management System) |
| IPDRs |
IP data records |
| IRI |
Interception Related Information, the metadata relating to a particular communications service, e.g., call detail records, time of call, caller ID, email address |
| LEA |
Law Enforcement Agency |
| LI |
Lawful Interception |
| LIMS |
Lawful Interception Management System |
| MC |
Monitoring Center |
| MD |
Mediation Device |
| MSC |
Mobile Switching Center, part of a GSM network |
| PS |
Packet Switched |
| PSTN |
Public Switched Telephony Network |
| RTP |
Real Time Transport Protocol |
| RTCP |
Real Time Transport Control Protocol |
| SBC |
Session Border Controller |
| SDP |
Session Description Protocol |
| SGSN |
Serving GPRS Support Node, part of a GSM network |
| SIP |
Session Initiation Protocol |
| TDM |
Time Devision Multiplex |
| UMTS |
Universal Mobile Telecommunications System (UMTS), one of the third-generation (3G) wireless communication technologies |
| 3GPP |
The 3rd Generation Partnership Project (3GPP) is an alliance between ETSI (Europe), ARIB/TTC (Japan), CCSA (China), ATIS (North America), and TTA (South Korea). www.3gpp.org |
