Python - Sip2sip Outgoing call with Pjsua

Error code

sip:ID@sip2sip.info

Failed to send Request msg INVITE/cseq=19833 err=171060 (Unsupported transport (PJSIP_EUNSUPTRANSPORT))
Call with sip:ID@sip2sip.info is DISCONNCTD last code = 503 (Unsupported t
ransport (PJSIP_EUNSUPTRANSPORT)) 

Add TLS support

sip:ID@sip2sip.info;transport=tls

Reference:

http://trac.pjsip.org/repos/wiki/Using_SIP_TCP

http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2008-September/004606.html