Hmm i did not know that there is a Voicemail zimlet. You do not mean the MWI Zimlet, do you?
The problem is that its not possible to get Voicemail media files through AMI... So additional scripts are needed to be run on the Asterisk server that provide the files somehow. As long its just checking for new Voicemail it would not be a problem. This can be done through AMI. Our solution to send the Voicemails to ZCS using email. So after asterisk sent the Voicemail using smtp there not much sense for MWI...
But if you can send me a link to this zimlet i'll have a look on it. Some inspiration is always a good thing
