Hi ,

Any one need ,

Voip billing, calling card with following features..
pc2pc
pc2phone
phone 2phone
phone 2pc
IVR balance play
IVR remaining time
IVR recharge
Online recharge through voucher
Reseller module
callshop
callback (WEB,EMAIL,ANI,SMS)
Prepaid and postpaid billing
web based management portals for admin,reseller,customer and callshop.
online pin generation
LOAD BALANCING- expand your business as you want distribute load on varius SIP servers.

and many more features ..

Please contact me for more information.