We offer voip softswitches which support SIP & H323 protocols,support 300 to 1000 calls ,do billing and routing. It is suitable for both callling card and wholesale business. We provide 24/7 support and colocation. We also provide gateways ,dialers,a-z Route etc
Softswitch features: pc2phone,wholesale termination, SIP/H323 convertion, online billing for end user, resellers webpage, admin web interface etc.
You can contact me over my personal MSN id for more details and for a demo of the systems.
My msn id: email@example.com