Moon billing Pro does have lot of features which u may chk from our demo server:

http://216.127.168.106:2122/billing/index.php
user: demo
password: demo

Also note, moon billing pro does have following features:
1. it does have a call statistics dash board from where you can check your total switch performance at a glance
2. Very secure and robust billing solution for VoIP Switch new version
3. More faster than earlier version of Moon Billing
4. Compatible with any web browser
5. You can customize it with your company name and logo.
6. You can operate all switches from mobile phone by using Moon Billing Pro.
7. Design & functionality similar with old version of VSC & VSR so you do not have to pay extra afford to learn or operate it.
8. Automatic Bill/Invoice Generation and Payment tracking.
9. Multi Login prohibited

Please note, we can install 7 days full functional demo of Moon Billing Pro & web based call shop in your server, if u want.. that will increase your confidence to use solutions

Regarding calling card, we will able to add more reports which will show you which cards has been used or registered with system which cards expiry date when etc…

Please Contact:
Kaushik Ahmed.
shajid@moonnetworks.net
+8801929996905