IP telephony has directory, authentication, privacy, location and presence features that require establishment of new services or policies. Ideally, the…
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Network Convergence
Bringing voice and data together has been an idea that has taken a long time to get here. It should…
Read MoreSIP security problem?
SIP requires explicit IP address and doesn't traverse NAT firewalls. Virtually all routers, such as found at Best Buy or…
Read MoreH.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…
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