Hi

I am working for a company with offices in UK and Norway. Here in Norway the
mobile phone provider has the possibility to give a mobile phone a public IP
address.

I wonder if this service is available for T-mobile customers.



The reason for having public IP address on the mobile is that I consider to
set up synchronization between our windows mobile phones and Exchange 2003
SP2.

The recommended solution is to set up an ISA server between the exchange
server and the firewall / the Internet.

If I have public IP addresses on the mobile phone I can use functionality in
my firewall and only allow my mobile phones to communicate with my exchange
server.



As I can see, it is then not necessary to use an ISA server between the
firewall/Internet and the Exchange server?



Am I missing something here or is my conclusion correct? Is it possible to
get public IP addresses for T-mobile mobiles or do I have to set up an ISA
server to get high enough security?



Any information will be highly appreciated.





Best regards
Harald
Norway