[pjsip] redirection (status 302) issue

[Neil Ostroff]

Hello.



I have encountered an issue with redirection (i.e., processing a 302 status
message) in the pjsua application and was hoping for a suggestion on how to
proceed. The problem occurs after initiating a new call (i.e., being a
UAC) uisng
TCP transport and receiving a status 302 with a contact header containing
transport=tcp. The new invite uses udp transport (i.e., the tcp transport
parameter is being ignored). If I force the use of TCP by disabling UDP,
the trace output shows the following:


19:55:46.082    tsx00D3AFAC  Failed to send Request msg INVITE/cseq=12709
(tdta00D35618)! err=171060 (Unsupported transport (PJSIP_EUNSUPTRANSPORT))

19:55:46.082    pjsua_app.c  Call 0 is DISCONNECTED [reason=503 (Unsupported
transport (PJSIP_EUNSUPTRANSPORT))]
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