Billing Plugin for BSS

Hello folks,

Can anyone recommend a good billing plugin for use with Brekeke SIP Server?

We want to provide the following services:

Wholesale termination
Vonage type services
Call shop

regards,

Elkabong

Billing
http://www.svksoftware.com/Main/Default.aspx?tabid=65

CallShop
http://www.svksoftware.com/Main/Product ... fault.aspx