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Founded in 2002, Grandstream Networks is a manufacturer of IP voice and video communications equipment, video surveillance, [1] gateways and analog telephone adapters (ATAs), and Asterisk-based IP-PBX appliances. Grandstream supplies small and medium businesses and consumers with open-standard SIP-based products.
FreePBX is a web-based open-source graphical user interface (GUI) that manages Asterisk, a voice over IP (VoIP) and telephony server. [2]FreePBX is licensed under the GNU General Public License version 3, [3] with commercial modules available under their own licenses.
This page was last edited on 1 August 2013, at 01:36 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Opencast (formerly known as Opencast Matterhorn) is a free, open-source software for automated video capture, processing, managing, and distribution, mainly for academic institutions. Opencast is built by a community of developers in collaboration with universities and organizations worldwide.
The FreePBX Distro was a freeware unified communications software system that consisted of a graphical user interface (GUI) for configuring, controlling and managing Asterisk PBX software. The FreePBX Distro included packages that offer VoIP, PBX, Fax, IVR, voice-mail and email functions.
3CX, Inc., is a software development company and developer of the 3CX Phone System. The 3CX Phone System is a software private branch exchange based on the SIP (Session Initiation Protocol) standard to allow calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services.
Obihai Technology was a company that manufactures analog telephone adapters that supported Session Initiation Protocol (SIP), XMPP, and Google Voice [2] compatible Internet telephony.
G.711 is a narrowband audio codec originally designed for use in telephony that provides toll-quality audio at 64 kbit/s. It is an ITU-T standard (Recommendation) for audio encoding, titled Pulse code modulation (PCM) of voice frequencies released for use in 1972.