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WorldSip is
now the leading provider of Hosted PBX and IP
Centrex applications. We also have the greatest
services of our best communation solutions through
channel partners ,
which not only validates our leadership position
but also enables us to provide maximum interoperability
to our customers.Our customers in Telecom
industry, such as Communications Solutions,
Internet Telephony Services Provider and Network
System Intrigation,have recognized our
" Turnkey Solutions for Internet Telephony
".
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Sip History
Internet Engineering Task Force (IETF) protocol
Separate SIP WG established in September 1999.
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Sip
Inventors
Inventors: M. Handley,
H. Schulzrinne, E. Schooler
and J. Rosenberg Became “Proposed
Standard” and RFC 2543 in
March 1999 in MMUSIC WG.
Sip
Features
Now new SIPPING (applications) and
SIMPLE (presence and instant messaging)
WGs using SIP.
RFC2543bis-09 I-D became RFC 3261
in June 2002
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Delivers integrated, high performance technologies
that improve the performance and operational
efficiency of critical network resources.
Delivers softswitch based
VoIP solutions that enable service providers
to deploy converged communication networks.
Delivers full-service
custom technical support to carrier and enterprise
customers who want to ensure satisfaction.
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