Dear Friends,
Let me offer you a solution for Calling cards, Callshop, Callback, Termination, Wholesale, compatible with most existing VoIP carriers. IVR support, including recharge vouchers.
All the system is setup under a single platform(mostly supporting SIP), though is compatible with other H323 and SIP systems
Please feel free to contact me directly for more details at e-mail: skystar1@hotpop.com

Kind regards,
Bill Ling