Please confirm that Rewrite Contact and Force rport are both set to No. If you still have trouble, post a SIP trace (pjsip set logger on) showing the incoming REGISTER and the 401 response.
Please confirm that Rewrite Contact and Force rport are both set to No. If you still have trouble, post a SIP trace (pjsip set logger on) showing the incoming REGISTER and the 401 response.