I’ve provided my users with a voicemail service - that’s all they can do through asterisk, call into voicemail, they can’t make any other calls.
Each user has their own voicemail extension, however, since I supply a shared toll-free number for them, I’d like to ensure that the total # of minutes for each mailbox doesn’t exceed “X”. That includes minutes spent recording and re-recording messages to the mailbox, and minutes spent calling into the mailbox and retrieving messages.
What’s the best way of metering the minutes used, and if possible tying it into a billing system so that people can up their package and purchasing more minutes if they need to?
Thanks in advance.