Billing Software suggestions?

Hi All,

I am using WHMCS billing software for my web hosting company which works great. I know I can set this up for individual items other than hosting plans such as VoIP plans, which again is great.

Even though WHMCS is a fantastic automated billing system, I would still have to manually bill customers for extra minutes used over and above their monthly bill should I sell a Forwarder #, Toll-Free #, or basic VoIP plan offering a specified amount of minutes and then a charge for extra minutes.

Anyone have any suggestions other than manually figuring out each customers account on extra minutes?

Thanks for the help.

I would just set a Minute Cap for your clients and sell in Minute Packages.