a2billing custom for calling cards

Need a full install of a2billing on a new server that will be strickly used for calling card and pinless dialing service - need is a feature that can allow customers (who have their own PIN on A2Billing) to recharge their account by paying on the phone via the common [login to view URL] payment gateway API. - Need support and training for our nocs on this new platform - also need a redesign of the webportal to our specifications