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Cisco Expressway

Hi,   I need to upgrade our Cisco expressway E & C from x8.7.1 to 8.9.2. I want to know if there is any restrictions doing that and has any one upgrade from the version 8.7.1 to 8.9.2. I am looking what things will I need to consider for the upgrade....

Farru by Beginner
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what is the Recommended Deployment for ExpressWay-C (Inside) , and ExpressWay-E ( in DMZ Segment) , Cisco ASA in the picture

Hi Guys   what is the Recommended Deployment for ExpressWay-C (Inside) , and ExpressWay-E ( in DMZ Segment) , Cisco ASA in the picture   pls past Template for NAT and ACL for the recommended Deployment     thanks all

Resolved! cucm upgrade from 10.5 to 11.5 SU question

Hello and thanks to anyone who responds.      We are currently using System version: 10.5.2.15900-8   (10.5.2SU5).    I'm looking to upgrade to 11.5 but have a question about which Service Update to go with.      Documentation states what is below.  ...