Hello,
I have problem with RFC4028 implementation in Cisco CUBE (3945E-rel.15.2.3, 3845 -rel 15.1.2).
My config contains min-se 90 session-expires 900 set globally inside voice service voip / sip.
Call is coming to Cisco with no Min-se and Session-Expires headers at all but with Supported: timer param.
CUBE is adding Min-SE: 90 to INVITE and sending it to call terminator.
Terminator after some provisional replies is sending OK with Session-Expires: 90;refresher=uas header.
After that timeout i see UPDATE coming from terminator side with Min-SE: 90 and Session-Expires: 90;refresher=uas.
An UPDATE is passing through the CUBE transparently, but 90sec is not acceptable by call originator which in turn is sending 422 message with Min-SE: 120.
No more messages is exchanged between both sides of the call till next UPDATE from call terminator.
Again, an UPDATE is received by Cisco with with Min-SE: 90 and Session-Expires: 90;refresher=uas.
This time Cisco is modifying Min-se but no Session-Expires to following output Min-SE: 120 and Session-Expires: 90;refresher=uas.
It makes no sense at all heaving Min-SE higher than Session-Expires at all.
As a result call is teared down by call originator.
My questions are:
- how to configure session timer properly. Did i omit anything?
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube_sip/configuration/xe-3s/cube-sip-xe-3s-book/cube-sip-xe-3s-book_chapter_011011.pdf
- how to force Cisco to add Session-Expires header inside INVITE message (without sip-profiles)
- why CUBE is modifying only Min-SE header but not Session-Expires in my example. Is this a kind of bug?
Thanks in advance
Mac
