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IP Multimedia Subsystem

Index IP Multimedia Subsystem

The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is an architectural framework for delivering IP multimedia services. [1]

116 relations: Adaptive Multi-Rate audio codec, Application server, Authentication, Authorization, Back-to-back user agent, Bearer-Independent Call Control, Business card, Cable modem, CableLabs, CAMEL Application Part, CDMA2000, Circuit switching, Codec, Customized Applications for Mobile networks Enhanced Logic, Diameter (protocol), Digital subscriber line, Domain Name System, Dynamic Host Configuration Protocol, Ethernet, ETSI, Evolution-Data Optimized, Firewall (computing), Firewall pinhole, Fixed access, Fixed–mobile convergence, G.711, General Packet Radio Service, Generic Access Network, GPRS core network, GSM, H.248, H.323, High availability, Image Share, International mobile subscriber identity, Internet Engineering Task Force, IP address, IP connectivity access network, IP Multimedia Services Identity Module, IPsec, IPv4, ISDN User Part, Landline, Load balancing (computing), LTE (telecommunication), Media gateway, Media server, Message Transfer Part, Mobile broadband, Mobile phone, ..., Mobile VoIP, MSISDN, Multimedia, Multimedia telephony, NAPTR record, Network address translation, Network-to-network interface, Next-generation network, OMA Instant Messaging and Presence Service, Online charging system, Open Services Access, Packet switching, Peer-to-peer video sharing, Personal digital assistant, Plain old telephone service, Prepayment for service, Public switched telephone network, Pulse-code modulation, Push-to-talk, Quality of service, Real-time Transport Protocol, Replay attack, Rich Communication Services, Roaming, Service (systems architecture), Service capability interaction manager, Service layer, Session border controller, Session Initiation Protocol, Signaling Compression, Signalling System No. 7, SIMPLE (instant messaging protocol), SIP extensions for the IP Multimedia Subsystem, SMS, Softswitch, Spoofing attack, SRV record, Standardization, Stream Control Transmission Protocol, Subscriber identity module, Subscriber location function, System Architecture Evolution, Telecommunication, Telecoms & Internet converged Services & Protocols for Advanced Networks, Telephone number mapping, Text over IP, Transport Layer Security, UMTS, Uniform Resource Identifier, Unstructured Supplementary Service Data, User agent, User equipment, User profile, User–network interface, Video Share, Voice call continuity, Voice over IP, Voice over LTE, VoIP gateway, WiMAX, Wireless LAN, XML, 3G, 3GPP, 3rd Generation Partnership Project 2, 4G. Expand index (66 more) »

Adaptive Multi-Rate audio codec

The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding.

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Application server

An application server is a software framework that provides both facilities to create web applications and a server environment to run them.

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Authentication

Authentication (from authentikos, "real, genuine", from αὐθέντης authentes, "author") is the act of confirming the truth of an attribute of a single piece of data claimed true by an entity.

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Authorization

Authorization is the function of specifying access rights/privileges to resources related to information security and computer security in general and to access control in particular.

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Back-to-back user agent

A back-to-back user agent (B2BUA) is a logical network element in Session Initiation Protocol (SIP) applications.

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Bearer-Independent Call Control

The Bearer-Independent Call Control (BICC) is a signaling protocol based on N-ISUP that is used for supporting narrowband Integrated Services Digital Network (ISDN) service over a broadband backbone network.

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Business card

Business cards are cards bearing business information about a company or individual.

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Cable modem

A cable modem is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fibre-coaxial (HFC) and radio frequency over glass (RFoG) infrastructure.

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CableLabs

Cable Television Laboratories, Inc. (in short form, CableLabs) is a not-for-profit innovation and research and development lab founded in 1988 by American cable operators.

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CAMEL Application Part

The CAMEL Application Part (CAP) is a signalling protocol used in the Intelligent Network (IN) architecture.

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CDMA2000

CDMA2000 (also known as C2K or IMT Multi‑Carrier (IMT‑MC)) is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites.

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Circuit switching

Circuit switching is a method of implementing a telecommunications network in which two network nodes establish a dedicated communications channel (circuit) through the network before the nodes may communicate.

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Codec

A codec is a device or computer program for encoding or decoding a digital data stream or signal.

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Customized Applications for Mobile networks Enhanced Logic

Customized Applications for Mobile networks Enhanced Logic (CAMEL) is a set of standards designed to work on either a GSM core network or the Universal Mobile Telecommunications System (UMTS) network.

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Diameter (protocol)

Diameter is an authentication, authorization, and accounting protocol for computer networks.

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Digital subscriber line

Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.

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Domain Name System

The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or other resources connected to the Internet or a private network.

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Dynamic Host Configuration Protocol

The Dynamic Host Configuration Protocol (DHCP) is a network management protocol used on UDP/IP networks whereby a DHCP server dynamically assigns an IP address and other network configuration parameters to each device on a network so they can communicate with other IP networks.

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Ethernet

Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).

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ETSI

The European Telecommunications Standards Institute (ETSI) is an independent, not-for-profit, standardization organization in the telecommunications industry (equipment makers and network operators) in Europe, headquartered in Sophia-Antipolis, France, with worldwide projection.

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Evolution-Data Optimized

Evolution-Data Optimized (EV-DO, EVDO, etc.) is a telecommunications standard for the wireless transmission of data through radio signals, typically for broadband Internet access.

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Firewall (computing)

In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

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Firewall pinhole

In computer networking, a firewall pinhole is a port that is not protected by a firewall to allow a particular application to gain access to a service on a host in the network protected by the firewall.

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Fixed access

Fixed access: In personal communications service (PCS), terminal access to a network in which there is a set relationship between a terminal and the access interface.

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Fixed–mobile convergence

Fixed–mobile convergence (FMC) is a change in telecommunications that removes differences between fixed and mobile networks.

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G.711

G.711 is an ITU-T standard for audio companding.

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General Packet Radio Service

General Packet Radio Service (GPRS) is a packet oriented mobile data standard on the 2G and 3G cellular communication network's global system for mobile communications (GSM).

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Generic Access Network

Generic Access Network (GAN) extends mobile voice, data and multimedia (IP Multimedia Subsystem/Session Initiation Protocol (IMS/SIP)) applications over IP networks.

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GPRS core network

The GPRS core network is the central part of the general packet radio service (GPRS) which allows 2G, 3G and WCDMA mobile networks to transmit IP packets to external networks such as the Internet.

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GSM

GSM (Global System for Mobile communications) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as tablets, first deployed in Finland in December 1991.

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H.248

The Gateway Control Protocol (Megaco, H.248) is an implementation of the media gateway control protocol architecture for providing telecommunication services across a converged internetwork consisting of the traditional public switched telephone network (PSTN) and modern packet networks, such as the Internet.

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H.323

H.323 is a recommendation from the ITU Telecommunication Standardization Sector (ITU-T) that defines the protocols to provide audio-visual communication sessions on any packet network.

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High availability

High availability is a characteristic of a system, which aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period.

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Image Share

Image Share is a service for sharing images between users during a mobile phone call.

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International mobile subscriber identity

The International Mobile Subscriber Identity or IMSI is used to identify the user of a cellular network and is a unique identification associated with all cellular networks.

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Internet Engineering Task Force

The Internet Engineering Task Force (IETF) develops and promotes voluntary Internet standards, in particular the standards that comprise the Internet protocol suite (TCP/IP).

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IP address

An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

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IP connectivity access network

IP-CAN (or IP connectivity access network) is an access network that provides Internet Protocol (IP) connectivity.

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IP Multimedia Services Identity Module

An IP Multimedia Services Identity Module (ISIM) is an application, and this application resides on the UICC, an IC card specified in TS 31.101.

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IPsec

In computing, Internet Protocol Security (IPsec) is a secure network protocol suite of IPv4 that authenticates and encrypts the packets of data sent over an IPv4 network.

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IPv4

Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol (IP).

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ISDN User Part

The ISDN (Integrated Services Digital Network) User Part or ISUP is part of Signaling System No. 7 (SS7), which is used to set up telephone calls in the public switched telephone network (PSTN).

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Landline

A landline telephone (also known as land line, land-line, main line, home phone, landline, fixed-line, and wireline) is a phone that uses a metal wire or optical fiber telephone line for transmission as distinguished from a mobile cellular line, which uses radio waves for transmission.

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Load balancing (computing)

In computing, load balancing improves the distribution of workloads across multiple computing resources, such as computers, a computer cluster, network links, central processing units, or disk drives.

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LTE (telecommunication)

In telecommunication, Long-Term Evolution (LTE) is a standard for high-speed wireless communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies.

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Media gateway

A media gateway is a translation device or service that converts media streams between disparate telecommunications technologies such as POTS, SS7, Next Generation Networks (2G, 2.5G and 3G radio access networks) or private branch exchange (PBX) systems.

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Media server

A media server refers either to a dedicated computer appliance or to a specialized application software, ranging from an enterprise class machine providing video on demand, to, more commonly, a small personal computer or NAS (Network Attached Storage) for the home, dedicated for storing various digital media (meaning digital videos/movies, audio/music, and picture files).

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Message Transfer Part

The Message Transfer Part (MTP) is part of the Signaling System 7 (SS7) used for communication in Public Switched Telephone Networks.

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Mobile broadband

Mobile broadband is the marketing term for wireless Internet access through a portable modem, USB wireless modem, tablet/smartphone or other mobile device.

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Mobile phone

A mobile phone, known as a cell phone in North America, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.

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Mobile VoIP

Mobile VoIP or simply mVoIP is an extension of mobility to a Voice over IP network.

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MSISDN

MSISDN (pronounced as /'em es ai es di en/ or misden) is a number uniquely identifying a subscription in a GSM or a UMTS mobile network.

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Multimedia

Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content.

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Multimedia telephony

The 3GPP/NGN IP Multimedia Subsystem (IMS) multimedia telephony service (MMTel) is a global standard based on the IMS, offering converged, fixed and mobile real-time multimedia communication using the media capabilities such as voice, real-time video, text, file transfer and sharing of pictures, audio and video clips.

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NAPTR record

A Name Authority Pointer (NAPTR) is a type of resource record in the Domain Name System of the Internet.

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Network address translation

Network address translation (NAT) is a method of remapping one IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device.

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Network-to-network interface

In telecommunications, a network-to-network interface (NNI) is an interface that specifies signaling and management functions between two networks.

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Next-generation network

The next-generation network (NGN) is a body of key architectural changes in telecommunication core and access networks.

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OMA Instant Messaging and Presence Service

The OMA Instant Messaging and Presence Service (IMPS) is an Open Mobile Alliance enabler for Instant Messaging and Presence.

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Online charging system

Online charging system (OCS) is a system allowing a communications service provider to charge their customers, in real time, based on service usage.

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Open Services Access

The Open Service Access or OSA is part of the third generation mobile telecommunications network or UMTS.

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Packet switching

Packet switching is a method of grouping data which is transmitted over a digital network into packets which are made of a header and a payload.

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Peer-to-peer video sharing

Peer-to-peer video sharing is a basic service on top of the IP Multimedia Subsystem (IMS).

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Personal digital assistant

A personal digital assistant (PDA), also known as a handheld PC, is a variety mobile device which functions as a personal information manager.

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Plain old telephone service

Plain old telephone service or plain ordinary telephone service (POTS) is a retronym for voice-grade telephone service employing analog signal transmission over copper loops.

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Prepayment for service

Prepaid refers to services paid for in advance.

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Public switched telephone network

The public switched telephone network (PSTN) is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators, providing infrastructure and services for public telecommunication.

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Pulse-code modulation

Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals.

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Push-to-talk

Push-to-talk (PTT), also known as press-to-transmit, is a method of having conversations or talking on half-duplex communication lines, including two-way radio, using a momentary button to switch from voice reception mode to transmit mode.

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Quality of service

Quality of service (QoS) is the description or measurement of the overall performance of a service, such as a telephony or computer network or a cloud computing service, particularly the performance seen by the users of the network.

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Real-time Transport Protocol

The Real-time Transport Protocol (RTP) is a network protocol for delivering audio and video over IP networks.

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Replay attack

A replay attack (also known as playback attack) is a form of network attack in which a valid data transmission is maliciously or fraudulently repeated or delayed.

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Rich Communication Services

Rich Communication Services (RCS) is a communication protocol between mobile-telephone carriers and between phone and carrier, aiming at replacing SMS messages with a text-message system that is richer, provides phonebook polling (for service discovery), and transmit in-call multimedia.

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Roaming

Roaming is a wireless telecommunication term typically used with mobile devices (like mobile phones).

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Service (systems architecture)

In the contexts of software architecture, service-orientation and service-oriented architecture, the term service refers to a software functionality or a set of software functionalities (such as the retrieval of specified information or the execution of a set of operations) with a purpose that different clients can reuse for different purposes, together with the policies that should control its usage (based on the identity of the client requesting the service, for example).

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Service capability interaction manager

In computer networks, a service capability interaction manager (or SCIM) orchestrates service delivery among application server platforms within the IP multimedia subsystem architecture.

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Service layer

In intelligent networks (IN) and cellular networks, service layer is a conceptual layer within a network service provider architecture.

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Session border controller

A session border controller (SBC) is a device regularly deployed in Voice over Internet Protocol (VoIP) networks to exert control over the signaling and usually also the media streams involved in setting up, conducting, and tearing down telephone calls or other interactive media communications.

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Session Initiation Protocol

The Session Initiation Protocol (SIP) is a communications protocol for signaling and controlling multimedia communication sessions in applications of Internet telephony for voice and video calls, in private IP telephone systems, as well as in instant messaging over Internet Protocol (IP) networks.

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Signaling Compression

Signaling compression, or SigComp, is a compression method designed especially for compression of text-based communication data as SIP or RTSP.

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Signalling System No. 7

Signaling System No.

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SIMPLE (instant messaging protocol)

SIMPLE, the Session Initiation Protocol for Instant Messaging and Presence Leveraging Extensions, is an instant messaging (IM) and presence protocol suite based on Session Initiation Protocol (SIP) managed by the Internet Engineering Task Force.

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SIP extensions for the IP Multimedia Subsystem

The Session Initiation Protocol (SIP) is the signaling protocol selected by the 3rd Generation Partnership Project (3GPP) to create and control multimedia sessions with two or more participants in the IP Multimedia Subsystem (IMS), and therefore is a key element in the IMS framework.

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SMS

SMS (short message service) is a text messaging service component of most telephone, internet, and mobile-device systems.

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Softswitch

A softswitch (software switch) is a central device in a telecommunications network which connects telephone calls from one phone line to another, across a telecommunication network or the public Internet, entirely by means of software running on a general-purpose computer system.

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Spoofing attack

In the context of network security, a spoofing attack is a situation in which a person or program successfully masquerades as another by falsifying data, to gain an illegitimate advantage.

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SRV record

A Service record (SRV record) is a specification of data in the Domain Name System defining the location, i.e. the hostname and port number, of servers for specified services.

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Standardization

Standardization or standardisation is the process of implementing and developing technical standards based on the consensus of different parties that include firms, users, interest groups, standards organizations and governments Standardization can help to maximize compatibility, interoperability, safety, repeatability, or quality.

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Stream Control Transmission Protocol

The Stream Control Transmission Protocol (SCTP) is a computer networking communications protocol which operates at the transport layer and serves a role similar to the popular protocols TCP and UDP.

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Subscriber identity module

A subscriber identity module or subscriber identification module (SIM), widely known as a SIM card, is an integrated circuit that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers).

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Subscriber location function

The subscriber location function, or SLF is an entity within an IP multimedia subsystem that provides information about the home subscriber server (HSS) that is associated with a particular user profile.

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System Architecture Evolution

System Architecture Evolution (SAE) is the core network architecture of 3GPP's LTE wireless communication standard.

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Telecommunication

Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.

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Telecoms & Internet converged Services & Protocols for Advanced Networks

The Telecoms & Internet converged Services & Protocols for Advanced Networks (TISPAN) is a standardization body of ETSI, specializing in fixed networks and Internet convergence.

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Telephone number mapping

Telephone number mapping is a system of unifying the international telephone number system of the public switched telephone network with the Internet addressing and identification name spaces.

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Text over IP

Text over IP (or ToIP) is a means of providing a real-time text (RTT) service that operates over IP-based networks.

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Transport Layer Security

Transport Layer Security (TLS) – and its predecessor, Secure Sockets Layer (SSL), which is now deprecated by the Internet Engineering Task Force (IETF) – are cryptographic protocols that provide communications security over a computer network.

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UMTS

The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard.

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Uniform Resource Identifier

A Uniform Resource Identifier (URI) is a string of characters designed for unambiguous identification of resources and extensibility via the URI scheme.

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Unstructured Supplementary Service Data

Unstructured Supplementary Service Data (USSD), sometimes referred to as "Quick Codes" or "Feature codes", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator's computers.

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User agent

In computing, a user agent is software (a software agent) that is acting on behalf of a user.

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User equipment

In the Universal Mobile Telecommunications System (UMTS) and 3GPP Long Term Evolution (LTE), user equipment (UE) is any device used directly by an end-user to communicate.

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User profile

A user profile is a visual display of personal data associated with a specific user, or a customized desktop environment.

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User–network interface

In telecommunications, a User Network Interface (UNI) is a demarcation point between the responsibility of the service provider and the responsibility of the subscriber.

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Video Share

Video Share is an IP Multimedia System (IMS) enabled service for mobile networks that allows users engaged in a circuit switch voice call to add a unidirectional video streaming session over the packet network during the voice call.

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Voice call continuity

The 3GPP has defined the Voice Call Continuity (VCC) specifications in order to describe how a voice call can be persisted, as a mobile phone moves between circuit switched and packet switched radio domains (3GPP TS 23.206).

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Voice over IP

Voice over Internet Protocol (also voice over IP, VoIP or IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.

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Voice over LTE

Voice over Long-Term Evolution (VoLTE) is a standard for high-speed wireless communication for mobile phones and data terminals - including IoT devices and wearables.

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VoIP gateway

A VoIP gateway is a gateway device that uses Internet Protocols to transmit and receive voice communications (VoIP).

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WiMAX

WiMAX (Worldwide Interoperability for Microwave Access) is a family of wireless communication standards based on the IEEE 802.16 set of standards, which provide multiple physical layer (PHY) and Media Access Control (MAC) options.

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Wireless LAN

A wireless local area network (WLAN) is a wireless computer network that links two or more devices using wireless communication within a limited area such as a home, school, computer laboratory, or office building.

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XML

In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.

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3G

3G, short for third generation, is the third generation of wireless mobile telecommunications technology.

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3GPP

The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunications standards associations, known as the Organizational Partners.

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3rd Generation Partnership Project 2

The 3rd Generation Partnership Project 2 (3GPP2) is a collaboration between telecommunications associations to make a globally applicable third generation (3G) mobile phone system specification within the scope of the ITU's IMT-2000 project.

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4G

4G is the fourth generation of broadband cellular network technology, succeeding 3G.

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Redirects here:

Globally Routable User Agent URI, Home Subscriber Server, Home subscriber server, I-CSCF, IP Multimedia Core Network Subsystem, IP Multimedia Private Identity, IP Multimedia Public Identity, IP Multimedia subsystem, IP multimedia subsystem, Initial Filter Criteria, Internet Multimedia Subsystem, Internet multimedia subsystem, MGCF, Media Gateway Control Function, Media Resource Function, P-CSCF, S-CSCF, SIP Application Server.

References

[1] https://en.wikipedia.org/wiki/IP_Multimedia_Subsystem

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