What do you mean your messaging is offline.. do you mean that Exchange has crashed? Is it off box? Will Exchange not start or just not communicating with Unity?
Start with the Event Log and see why Exchange is offline. Then note the errors and start looking up the Event IDs at Microsoft.com. When Exchange is down, it could be many different things. (corrupt database, AD issues, DNS problems, etc)
If you are really are unsure, get TAC on the phone to help you. You are better off calling in reinforcements, rather than causing more damage to Exchange.
- DNS up and running
- Ping FQDN from Unity to Exchange (does it resolve)
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
Over the last few months, I have had the privilege of working on SI...
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...