First off, I've really appreciated everyone's assistance. I'm almost ready to swap the circuit used by OWA, but had one more question.
This is what I understand or think I understand to date:
We have a dedicated IP used for OWA so no critical staff an check e-mail from their home PC or while away. From what I understand this only uses port 443 and 80 by default. We have a BES with another data circuit, but as i understand the BES communicates directly to RIM then RIM to the BlackBerries via the BES data circuit and not through Exchange OWA circuit. The BlackBerries never go in/out of the OWA circuit.
What I don't understand:
We have a few Android phones using the native e-mail client to send/receive e-mail and calendar updates. To setup them up i pointed them to OWA then authenticated. If I delete e-mail or calendar entries on my phone they propagate to my Outlook Client on the PC. How can I determine if the Android phones are using ActiveSysnc?
If I am using ActiveSync then I need to make sure all the posted listed at the link below are opened on my firewall. http://support.microsoft.com/kb/259369