Sip problem

Situatation is that operator mangosip.ru got on 1 ip many realms. Problem is that asterisk automatically changes host to ip on incoming call in To: field. So operator send error back. How to force asterisk not to change host to ip?

This Asterisk bug may be relevant: issues.asterisk.org/view.php?id=17960

Yep, it is… Hope this gets fixed. Thread may be closed.