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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