I don't deal with the purchase side much, so you might want to confirm with someone who does, but my understanding is that you will need both a server license, which is really cheap and then you'll need to pay for any additional call server ports (not cheap) you might need.
Those ports are yours and can be allocated however you want, across 2, 3, or 4 servers. However, once you allocate the licenses you will have to open an SR with Cisco to get a new PAK generated to be able to move the licenses around.
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...