Juha Heinanen writes:
it does not have Supported: outbound, but there is ;ob
param in
contact.
this looks like bug in pjsip, because according to outbound rfc 5626:
4.3. Sending Non-REGISTER Requests
...
UAs that support this specification SHOULD include the outbound
option tag in a Supported header field in a request that is not a
REGISTER request.
in my opinion, outbound module should check Supported: outbound and not
just believe ;ob param.
perhaps there is another bug in pjsip, because it is not using the same
flow for ack as it used for invite.
-- juha