We are currently in the early stages of an IP Telephony solution. The phone system itself is performing great, now we are turning our attention to a Voice Mail system. We have purchsed the Unity system (VM only). Our network envorinment does not include a true Domain. DNS, DHCP and every other application possible is handled by Linux servers. It is my understanding that the Unity Voice Mail system requires Windows2000 running Exchange and Active Directory. My question is whether or not Active Director is necessary and also what might be some side-effects of introducing Active Directory into our network.
Unity does require Exchange which inherently requires a domain, which in most circumstances means Active Directory. What we almost always do for VM-only systems is make the box a domain controller for its own domain, with no other members. That way the voicemail system is a self-contained box that doesn't interfere with the rest of your systems and networks, which is exactly what you want in this case. For Unified Messaging you would need to join it to your existing domain, but you don't have UM and you don't have a domain, so this isn't a concern.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...