Hi,
I'm having difficulty using sems 1.5.0 as a B2BUA SBC.
A UA that supports 100rel originates a call to the PSTN via SEMS as a B2BUA
1. 100rel=disabled is set in sems.conf; but the outbound Supported
header contains "100rel." (It contains whatever the originating UA
advertised.)
2. The upstream carrier sends back a 183 with:
Record-Route: <sip:carrier.ip:5060;lr>
Record-Route: <sip:proxyB.ip;lr=on;ftag=xxxxxxxxxxxx>
Record-Route: <sip:proxyA.ip:5060;lr=on;did=xxxxxxxx>
Require: 100rel
Sems sends back a PRACK without the routing information, so proxyA is
unable to forward the PRACK. The call fails.
The dialog completes if 100rel is filtered from the Supported header on
the originating UA.
Am I missing something obvious? Or any other pointers on resolving this?
IIRC, 1.4.x series did not have this behavior, I can test it if necessary.
Thanks!
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