Comment #1 on issue 156 by jean.deruelle: MSS overwrites host part of Contact Header in REGISTER requests
http://code.google.com/p/sipservlets/issues/detail?id=156
Seems http://code.google.com/p/mobicents/source/diff?spec=svn15894&old=15885&r=15894&format=unidiff&path=%2Ftrunk%2Fservers%2Fsip-servlets%2Fsip-servlets-impl%2Fsrc%2Fmain%2Fjava%2Forg%2Fmobicents%2Fservlet%2Fsip%2Fmessage%2FSipServletRequestImpl.java
Caused this regression
