Well, i was receiving an error when I was trying to register user “Alice” saying :

 Unresolvable destination (478/TM) (for REGISTER)

Solution is simple. I changed

"/etc/bind/named.conf"

file adding this files to top of the same file :

include "/etc/bind/named.conf.options";
include "/etc/bind/named.conf.local";
include "/etc/bind/named.conf.default-zones";
include "/etc/bind/open-ims.dnszone";

Also I wrote an correct ip address of my host pc.

I'm currently running an OpenIMSCore on Ubuntu 10.10 that

is hosted as virtual machine on VirtualBox. Ip address of that

machine is : 10.0.2.15. My IP address for connection to

internet is : 192.168.1.101, so I changed the /etc/resolv.conf

file to look like this :

# Generated by NetworkManager
nameserver 192.168.1.101
nameserver 10.0.2.25
search open-ims.test
domain open-ims.test

Enjoy life, enjoy Bosnia and Herzegovina :)