SIP requires explicit IP address and doesn't traverse NAT firewalls. Virtually all routers, such as found at Best Buy or…
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H.323 History and Issues
H.323 is an umbrella recommendation from the ITU (International Telecommunications Union) for real-time multimedia over Local Area Networks. Originally approved…
Read MoreHow is SIP being used today?
3Com, a founding member of the SIP Forum, is the only major IP-PBX manufacturer that is making a big play…
Read MoreInnovator’s Dilemma
The baggage of first generation success is that the best thing for your existing business is to resist the customer…
Read MoreWhat’s SIP All About?
Session Initiation Protocol is an IETF draft for managing the handshake procedures for beginning and ending IP communications between end…
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