VoIP software

Source: Wikipedia. Pages: 61. Chapters: Skype, Windows Live Messenger, Comparison of VoIP software, Google Voice, Google Talk, Cisco Unified Communications Manager, Tru, Fring, Yahoo! Messenger, S4PG, Mobicents, Gizmo5, Avaya Application Server 5300, Jitsi, List of SIP software, Unison, Mohawk Voice, Ekiga, TokBox, Brosix, SipX, Verba Technologies, QuteCom, Revation LinkLive, VzRoom, Echolink, 6rounds, Avaya Proactive Voice Quality Management, D2 Technologies, Avaya Communication Server 2100, OpenSER, SFLphone, Lyceum, Speedflow Communications, Vbuzzer, Ventrilo, Mysipswitch, OmNovia Technologies, IP PBX, VZOchat, KPhone, Yahoo! Voice, Cisco Unified Provisioning Manager, HamSphere, Zfone, SightSpeed, OpenH323, Revation Communicator, IConnectHere, Net2Phone, SIP Express Router, Zultys, PhonerLite, Nuvoiz Communicator, JSLEE, OfficeSIP Messenger, Voice Operator Panel, Brekeke SIP Server, Softphone, SAM Broadcaster, Tpad, Linphone, Zingaya, Brekeke PBX, Yuuguu, Call-Processing Language, Avaya Communication Servers, Cisco IP Communicator, Roger Wilco, H323Plus, OctroTalk, IPdrum, PGPfone, X-Lite, Asterisk Gateway Interface, Sippy B2BUA, Authenticated Identity Body, Nautilus, Teleo, Eyeball Chat, Cipango, Fetion, OpenSIPS, CoolTalk, Natpass. Excerpt: Skype ( ) is a software application that allows users to make voice and video calls and chats over the Internet. Calls to other users within the Skype service are free, while calls to both traditional landline telephones and mobile phones can be made for a fee using a debit-based user account system. Skype has also become popular for its additional features which include instant messaging, file transfer, and videoconferencing. Skype has 663 million registered users as of 2010. The network is operated by Skype Limited, which has its headquarters in Luxembourg. Most of the development team and 44% of the overall employees of Skype are situated in the offices of Tallinn and Tartu, Estonia. Unlike other VoIP services, Skype is a peer-to-peer system rather than a client-server system, and makes use of background processing on computers running Skype software; the original name proposed - Sky peer-to-peer - reflects this. Some network administrators have banned Skype on corporate, government, home, and education networks, citing reasons such as inappropriate usage of resources, excessive bandwidth usage, and security concerns. On 10 May 2011, Microsoft Corporation agreed to acquire Skype Communications, S.à r.l for US$8.5 billion. The company is to be incorporated as a division of Microsoft, and Microsoft will acquire all of the company's technologies, including Skype, with the purchase. Registered users of Skype are identified by a unique Skype Name, and may be listed in the Skype directory. Skype allows these registered users to communicate through both instant messaging and voice chat. Voice chat allows telephone calls between pairs of users and conference calling, and uses a proprietary audio codec. Skype's text chat client allows group chats, emoticons, storing chat history, offline messaging (since version 5) and editing of previous messages. The usual features familiar to instant messaging users - user profiles, online status indicators, and so on - are also includ