Ron,
I just skimmed the RFC. This is
a great feature! I have a question about
what it does with respect to the OpenSER proxy.
Does the sst module refresh the session, or does this module
sit in the middle, monitor dialog time remaining, and remove reference
to the dialog if the timer value goes negative? That is, it looks
like to me the session timer stuff is between the uas and the uac, but
I never have been very good at reading the RFCs :-)
-g
On 9/15/06, Bogdan-Andrei Iancu <bogdan(a)voice-system.ro> wrote:
Hi Ron,
this looks super. Please upload the module on the tracker (just to have
it there). In the mean while I forward your email on the users mailing
list so people can show (or not) their interest for this new
functionality. If there are no arguments against it, the module may be
uploaded on the public cvs - of course you need to take care and
maintain the module for the future ;).
Regards,
Bogdan
Ron Winacott wrote:
Hello all,
I would like to contribute the following new module to the OpenSER project.
If you find it usesfull, great, if not, sorry for the spam :-)
The new module gives OpenSER basic SIP Session Timer support. See rfc4028 for
more information on SST. This new module uses the new dialog module to track
the creation, updating and termination of SIP dialogs. The dialog module
supports timed out termination of the dialog but at this time the timeout
value is hardcoded (avp accessable and modparam() settable)
What the sst module does is uses the dialogs own callbacks to update the
dialog timeout value based on the current expire: header value.
There is also a script function called sstCheckMin(min_se_value) that can be
used in a proxy configuration to reply with a 422 "Session Interval Too
Small" to a INVITE with a small MIN_SE value.
As I see new functionality requirements of the module I will add it. If you
have a request for some new functionality in the SST module, please email me
your ideas.
The attached file is a gzipped tar ball of the sst module directory tree. (cd
openser/modules tar -xzf sst.tgz to extract)
Thanks for your time,
ronw
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