Helmut Wolf wrote: > Hi Benny, > > I have tested pjsua sample using outbound proxy. With some other SIP Clients like X-Lite it works fine, but with PJSIP, the first > REGISTER is routed over the outbound proxy but the second one (with authentication data) is sended directly to the SIP router. In > attachment you can see the SIP flow and the configuration file. It looks like there is a bug with re-sending the request for retrying the authentication when strict route is used, thanks for reporting this. But the route URI was missing ";lr" parameter in it, was it really your intention to use strict-route (which was deprecated by RFC 3261) rather than loose route? The loose route processing should work fine. -benny