2011/7/6 Klaus Darilion klaus.mailinglists@pernau.at:
The last problem will be, that many SIP devices will fail to parse the sips URI in the RR headers (even if they are not needed for them)
And that is a bug in the current devices, not in the protocol. For example the so "great" PJSIP stack fails:
http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2011-July/013102.html