Didn't you wanted to call it
"SIP-sexy"
On 01.04.2011 10:54, Olle E. Johansson wrote:
Friends,
After having spent many years working with the Asterisk SIP channel
driver, Kamailio and the SIPv2 protocol, I have finally realized that this
is a dead end. It's getting nowhere and it's way too complicated to set up,
run and support in working code.
After realizing this, I started a new standardization project together
with my friends in Canada, Simon and Marc, to develop a working solution
based on the combination of IPv6 and SIP. We have gotten great feedback and
now the IETF, the ITU and the IPv6 forum jointly launches the new standard,
SIP-six.
From the press release:
"”We realize that 99% of the SIP users use SIP for PSTN phone calls. The
original SIP standards was written with other applications in mind, a vision
that never came true.” said Bob Plug, area director in the IETF. ”That’s why
we sat down and said to ourselves that this should be way more simple.”
The SIP-six standard totally removes the dependency of domains and URI
syntax. There’s no point in using this, since everyone seems to think that
IP addressing is more than enough. The new standard use part of the vast
IPv6 address space to incorporate the E.164 phone numbers as addresses. This
is the reverse of the reverse phone number usage in the enum standard, which
is no longer needed in SIP-six.
By using IPv6 mobile IP, phone users register their phones and get access
to their phone number. Users that need security can easily integrate IPsec
into their setup. Media and signalling uses the same addressing scheme and
is mixed so that both SIP-six, RTP and RTCP only uses one port address - but
in this case a port address with 32 bit subaddress identifying the media
stream. This finally solves a lot of the firewall traversal issues that SIP
v2.0 had. With the combination of mobile IP and use of public IPv6 addresses
NAT traversal won’t be an issue.
The testbed for SIP-six has been running for a year at six choosen large
SIP carriers, with the assistance of Edvina AB in Sweden and ViaGenius in
Montreal, Canada. In an International effort, the testbed is today put in
production and Roboid phones all over the world is automatically connected
to this worldwide network."
You will be able to find out more about it here:
http://bit.ly/sipsix
SIP-six is implemented as a channel driver in Asterisk 2.0, as a
replacement for SIP2.0 in Kamailio 4.0 and a channel module in FreeSwitch -
all releases to be released later today. Softphones for testing will shortly
be available from Blink and Zoiper.
Looking forward to continue this project with the rest of the
Kamailio/SIP-router community!
Special thanks to Daniel for the reference implementation in Kamailio
4.0!
Have a nice weekend!
/Olle
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