14 Apr
2003
14 Apr
'03
2:57 p.m.
FYI
We found some SIP widely used implementations don't like loose-routing
parameter (";lr") without any value (which is the currently documented
use of loose-routing) and break. We will probably introduce a workaround
option which will allow to use lr with value (e.g., ";lr=true").
In particular, we learned that Windows Messenger, rejects loose-record-routed
requests and replies with "400 BAD Request" to INVITES with ";lr" in
it.
Cisco IOS strips all RR parameters without value away, including ";lr" from
Route header fields in subsequent requests.
-Jiri
--
Jiri Kuthan http://iptel.org/~jiri/