Hi! This ser instance is not RFC3261 compatible as it changes the contact header. Solution: In your ser.cfg do not use fix_nated_contact() but instead use fix_nated_register(). regards klaus Philippe schrieb: > Hi, > > > > We discovered that PJ stack is not compatible with SER. This is may be > caused by the changes done in the bug fix #371. > > > > This is due to the fact that SER do not provide the same contact in the > response that in the REGISTER: > > > > REGISTER sip:proxy01.sipphone.com;transport=UDP SIP/2.0 > > Via: SIP/2.0/UDP > 192.168.1.41:1637;rport;branch=z9hG4bKPjbbd860b613154a5eaa9fabf99c1c3ace > > Contact: <sip:17472769426 at 192.168.1.41:1637;transport=UDP> > > ? > > > > > > SIP/2.0 200 OK > > Via: SIP/2.0/UDP > 192.168.1.41:1637;rport=7912;branch=z9hG4bKPjbbd860b613154a5eaa9fabf99c1c3ace;received=81.63.143.178 > > Contact: <sip:17472769426 at 81.63.143.178:7912;transport=UDP>;expires=1800 > > ? > > > > > > I agree that the SER behavior is not standard. > > > > What can be do to solve the issue? > > > > Philippe Leuba > > > ------------------------------------------------------------------------ > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org