The Very First one
Yahoo has launched yahoo messanger version 7.5(Beta),with pc-to-phone calling service included.It also includes a free voice mail service.For details of the news please visit...
http://www.voip-magazine.com/content/view/2940/
SIP is an application layer protocol,standardized and mantained by IETF.It is used for transfering multimedia data over an IP network.SIP runs over TCP/UDP ,uses port number 5060,and makes a voip developers life much easier.to know about SIP in detail you may visit.. http://en.wikipedia.org/wiki/Session_Initiation_Protocol I have created this blog to put news and info regarding VOIP (Voice over internet protocol),and SIP. I feel SIP is the future of telephony.