This may have been posted before but I couldn't track it down.

I need to have OTA address book sync capabilities across all the BB's in my department. Unfortunately, we don't use Exchange/Lotus/Novell for our email systems and the BES for MDS does not support OTA address book sync.

Is it possible to run a BES for Exchange/Lotus/Novell and still use BIS for email push and handle everything else (device provisioning, OTA address book sync etc.) through BES?