Hi Nick.
Thanks for your quick responce.
Unfortunately the N80 does insist on a realm, however, if I use our internal IP addresses and the realm 3CXPhoneSystem, it works. If I try and use an external IP address it doesn't work.
It's a shame really because I have a contract wich gives me as much data as I can eat, and my phone could be permanently connected (as long as there is a 3g signal) so that I can be contacted rather than a mobile call.
The asterisk system I use you can set the realm to whatever you like, the default being asterisk. My phone works whether or not it's got an internal or external IP address.
If I can't get it to work I could always set up a trunk from 3Cx to the asterisk system to ring the asterisk extension, it would just be nice to connect it to 3Cx like evrybody else. It works just fine with the Snom 300 and Zyxel P2000 and of course X-lite etc.
It's obviously Nokia to blame.....lol
Apart from that, brilliant software.
Thanks.