I am trying to sync my blackberry 8350i which is through Nextel to my exchange 07 server. Everything that I have read shows that I need a Blackberry Enterprise Server at my location or a third party sync software such as Astrasync or Notifysync. I called sprint today and they told me that I only need to activate BES on the phone itself. They did this for me and told me to activate it using my username,password, and exchange OWA address just as I would in a windows mobile device with activesync. So far this has not worked but I do receive an email in my inbox trying to activate and I do see the phone under my mobile devices in OWA. I must be missing something here since I did not think that blackberry's support activesync.