FreePBX/Asterisknow Voicemail integration with Cisco


I have been working with the Cisco environment for a little while now and they have now EOL the version of Unity i am using. As a test i would like to see how i could utilise the voicemail within Asterisk.

Ive read alot on the net about doing this but its mainly based arround asterisk from a CLI. Asterisk and Linux is completely new to me so im lost.

Ive setup the SIP trunk, voicemail pilot, voicemail profile, route patterns from the Cisco side. Initially i got the annuniciator from the Asterisk (american lady) but now i just get the busy tone.

Can anyone help with some instuction or a simple guide?