Hello. I have a problem with linphone: https://github.com/BelledonneCommunications/linphone-android/issues/583 It creates different dialogues for different TO headers. And asterisk uses client IP in TO header, so I have a new dialogue each time my phone changes IP address. There is a from_domain option that is specified in my pjsip.conf, but I've not found any analogue for to header. But I've found same (unanswered) question on community.asterisk.org: https://community.asterisk.org/t/asterisk-pjsip-how-to-force-using-domain-name-instead-of-ip-address-for-to-header/71898 -- sergio.