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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). Early proprietary implementations might also run a simple SIP infrastructure, too. The GSM Association calls it "Video Share". The peer-to-peer video sharing functionality is defined by the Phase 1 of the GSMA Video Share service. For a more detailed description of the full GSMA Video Share service, please see the Wikipedia entry for Video Share. The most basic form is typically connected to a classical circuit-switched (CS) telephone call. While talking on the CS line the speaker can start in parallel a multimedia IMS session. The session is normally a video stream, with audio being optional (since there is an audio session already open on the CS domain). It is also possible to share photos or files. Actually, P2P video sharing does not require a full IMS implementation. It could work with a pure IETF Session Initiation Protocol (SIP) infrastructure and simple HTTP Digest authentication. Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IP Multimedia Subsystem
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. Alternative methods of delivering voice (VoIP) or other multimedia services have become available on smartphones, but they have not become standardized across the industry. IMS is an architectural framework that provides such standardization. IMS was originally designed by the wireless standards body 3rd Generation Partnership Project (3GPP), as a part of the vision for evolving mobile networks beyond GSM. Its original formulation (3GPP Rel-5) represented an approach for delivering Internet services over GPRS. This vision was later updated by 3GPP, 3GPP2 and ETSI TISPAN by requiring support of networks other than GPRS, such as Wireless LAN, CDMA2000 and fixed lines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GSM Association
The GSM Association (commonly referred to as 'the GSMA' or ''Global System for Mobile Communications'', originally ''Groupe Spécial Mobile'') is an industry organisation that represents the interests of mobile network operators worldwide. More than 750 mobile operators are full GSMA members and a further 400 companies in the broader mobile ecosystem are associate members. The GSMA represents its members via industry programmes, working groups and industry advocacy initiatives. History The GSMA was formed in 1995 as the 'GSM MoU Association' as a body to support and promote mobile operators using the GSM (Global System for Mobile communications) standard for cellular networks. It traces its history back to a memorandum of understanding signed in 1987 by 13 operators in 12 countries that committed to deploying GSM for mobile services. Membership and governance Full membership of the GSMA is open to licensed mobile operators using a GSM family technology. Approximately 750 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Session Initiation Protocol
The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications. SIP is used in Internet telephony, in private IP telephone systems, as well as mobile phone calling over LTE ( VoLTE). The protocol defines the specific format of messages exchanged and the sequence of communications for cooperation of the participants. SIP is a text-based protocol, incorporating many elements of the Hypertext Transfer Protocol (HTTP) and the Simple Mail Transfer Protocol (SMTP). A call established with SIP may consist of multiple media streams, but no separate streams are required for applications, such as text messaging, that exchange data as payload in the SIP message. SIP works in conjunction with several other protocols that specify and carry the session media. Most commonly, media type and parameter negotiation and media setup are performed with the Session Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecom Italia Mobile
Gruppo TIM, legally TIM S.p.A. (formerly Telecom Italia S.p.A.), also known as the TIM Group in English, is an Italian telecommunications company with headquarters in Rome, Milan, and Naples, (with the Telecom Italia Tower) which provides fixed telephony and DSL data services. It is the largest Italian telecommunications services provider in revenues and subscribers. It was founded in 1994 by the merger of several state-owned telecommunications companies, the most prominent of which was Società Italiana per l'Esercizio Telefonico p.A., (known as ''SIP''), the former state monopoly telephone operator in Italy. The company's stock is traded in the Borsa Italiana. Since 2017, the Italian State exercises on TIM the "Golden Power", which allows the government to take a number of actions when the strategic interests of the country are concerned. History 1925–1964: Stipel and early mandatory phone tax In 1925, the phone network was reorganised by the Benito Mussolini cabinet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecomunicações Móveis Nacionais, SA
MEO is a mobile and fixed telecommunications service and brand from Altice Portugal (formerly Portugal Telecom), managed by MEO - Serviços de Comunicações e Multimédia. The service was piloted in Lisbon in 2006 and was later extended to Porto and Castelo Branco. History MEO in its current form was founded in 2007 after the separation of PT Comunicações and PT Multimédia (later ZON Multimédia). While PT Multimédia employed coaxial cables, after separation, MEO started making use of copper cables. The television service supplied by MEO within the copper cable network is served on the ADSL line. Telecomunicações Móveis Nacionais (TMN), Portugal's first and largest mobile network operator, was later integrated into the MEO brand in 2014 after two of TMN's shareholders, Telefones de Lisboa e Porto (TLP) and Marconi Comunicações Internacionais (the Portuguese operations of the UK-based Marconi Company) were acquired by Portugal Telecom in 1994 and 2002 respectively. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
