User:SimonInns/History of VoIP

Links
Timeline of the development of Residential VoIP Services in the US

VoIP timeline

Cisco presentation containing history discussion

History of VoIP

 * 1974 - The Institute of Electrical and Electronic Engineers (IEEE) published a paper entitled "A Protocol for Packet Network Interconnection."
 * 1981 - IPv4 is described in RFC-791
 * 1985 – The National Science Foundation commissions the creation of NSFNET
 * 1995 – VocalTec releases the first commercial Internet phone software.
 * 1996 -
 * ITU-T begins the standardization of VoIP initially with the H.323 standard
 * US telecommunication companies ask the US Congress to ban Internet phone technology.
 * 1997 - Level 3 began development of its first softswitch (a term they coined in 1998)
 * 1999 -
 * The Session Initiation Protocol (SIP) specification RFC-2543 was released
 * The first open source SIP PBX (Asterisk) is created by Mark Spencer of Digium
 * 2004 - Commercial VoIP service providers proliferate