Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, such as the Internet.
The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is a standardised architectural framework for delivering IP multimedia services. Historically, mobile phones have provided voice call services over a circuit-switched-style network, rather than strictly over an IP packet-switched network. Various voice over IP technologies are available on smartphones; IMS provides a standard protocol across vendors.
Teradyne, Inc., is an American automatic test equipment (ATE) designer and manufacturer based in North Reading, Massachusetts. Teradyne's high-profile customers include Samsung, Qualcomm, Intel, Analog Devices, Texas Instruments and IBM.
The Telecoms & Internet converged Services & Protocols for Advanced Networks (TISPAN) is a standardization body of ETSI, specializing in fixed networks and Internet convergence. It was formed in 2003 from the amalgamation of the ETSI bodies Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) and Services and Protocols for Advanced Networks (SPAN).
The next-generation network (NGN) is a body of key architectural changes in telecommunication core and access networks. The general idea behind the NGN is that one network transports all information and services by encapsulating these into IP packets, similar to those used on the Internet. NGNs are commonly built around the Internet Protocol, and therefore the term all IP is also sometimes used to describe the transformation of formerly telephone-centric networks toward NGN.
Spirent Communications plc is a British multinational telecommunications testing company headquartered in Crawley, West Sussex, in the United Kingdom. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.
Cirpack is an NGN, SBC and IMS vendor for Telecommunications Operators, Internet and Application Service Providers, focusing on telephony services such as residential and business VoIP, IP Centrex, SIP Trunking, Triple play, Fixed Mobile Convergence, VoLTE, Transcoding etc.
Mobile VoIP or simply mVoIP is an extension of mobility to a voice over IP network. Two types of communication are generally supported: cordless telephones using DECT or PCS protocols for short range or campus communications where all base stations are linked into the same LAN, and wider area communications using 3G or 4G protocols.
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.
TELES AG Informationstechnologien is a provider of equipment and services to fixed, fixed-mobile convergence, and Next Generation Networking (NGN) service providers.
Biscom, Inc. is a privately held enterprise software company with headquarters in Westford, MA. Biscom's primary focus is to provide secure document delivery solutions to regulated industries. The company develops and markets fax server solutions that facilitate inbound and outbound electronic fax communications, as well as managed file transfer, enterprise file synchronization and sharing, and document conversion solutions. Biscom is known for its ability to scale to deliver millions of documents per day and for a history of reliability that is required for mission critical processes.
Continuous Computing was a privately held company based in San Diego and founded in 1998 that provides telecom systems made up of telecom platforms and Trillium software, including protocol software stacks for femtocells and 4G wireless / Long Term Evolution (LTE). The company also sells standalone Trillium software products and ATCA hardware components, as well as professional services. Continuous Computing's Trillium software addresses LTE Femtocells and pico / macro eNodeBs, as well as the Evolved Packet Core (EPC), Mobility Management Entity (MME), Serving Gateway (SWG) and Evolved Packet Data Gateway (ePDG).
Fanfare was a U.S. technology company located in Mountain View, California, which developed automated testing software that enables telecom service providers, network equipment manufacturers, and enterprises to automate quality testing of their products and services. Fanfare's flagship test automation product, iTest is built for testers, developers, and automation specialists. iTest automates feature, black box, and regression testing to accelerate system and device testing throughout the quality process. Fanfare was bought by Spirent Communications in early 2011.
The Internet Telephony Service Providers Association (ITSPA) is a British body representing providers of Internet Telephony services (VoIP).
Mavenir Systems, Inc.Mavenir is an American telecommunications software company, created in 2017 as a result of a three-way merger of existing companies and technologies, that develops and supplies cloud-native software to the communications service provider (CSP) market.
Performance Technologies, Inc was set up in 1981 and now is based in Rochester, New York. The company engages in network communications, telecommunications, and military, aerospace and government systems. In January 2011, Performance Technologies acquired GENBAND's Universal Signaling Platform (USP) and SP2000 signaling technology.
ViLTE, an acronym for "Video over LTE", is a conversational video service based on the IP Multimedia Subsystem (IMS) core network like VoLTE. It has specific profiles for the control and VoLTE of the video service and uses LTE as the radio access medium. The service as a whole is governed by the GSM Association in PRD IR.94.
Italtel Ltd. is an Italian telecommunications equipment and ICT company founded in 1921, originally as a branch of Siemens AG. It played a major role in the development of telecommunication systems in Italy, most notably as one of the main equipment providers for the Italian state monopoly telephone operator SIP and as the leading actor in the evolution of the Italian PSTN from analog to digital switching. At its maximum prosperity, the company grew to over 30.000 employees.
Viavi Solutions, formerly part of JDS Uniphase Corporation (JDSU), is an American network test, measurement and assurance technology company based in Chandler, Arizona. The company manufactures testing and monitoring equipment for networks. It also develops optical technology used for a range of applications including material quality control, currency anti-counterfeiting and 3D motion sensing, including Microsoft's Kinect video game controller.
