Voip System

We need a complete voip system. - will work on all major platforms. - windows softphone - cross-platformbrowser webphone - Android Softphone (branded) - IPhone Softphone - Symbian dialer presales Any third party voip endpoint - Voip tunnel clients for third party softphones and devices - Voip clients size select features - Sip protocol stack and related protocols - H323 protocol stack (gateway and keeper) - Class4 features (transit, routing, billing, LCR, BRS, load balancing, failovering) - Class5 features (PBX features, ACD, call forward, transfer, DID, etc) - Codec support: all (G.729, G.723, G.711, G.722, G726, GSM, speex, iLBC, wideband, ultra-wideband, H264, DTMF, etc) - Video, Presence, IM support (SIP SIMPLE) IVR Basic calling cards (requires IVR basic) - P2P, callback (requires IVR basic) - IVR Advanced - SMS out - SMS in - Enduser webportal - Resellers - Callshops Tunneling and encryption - Recharge, Paypal, pincodes - Payment Gateways - GeoIP (for location based services) - Dynamic-automatic firewalling, DOS attack protection, account limits, blacklists, account lockdown - Codec conversion - Outbound callcenter - Predictive dialer - VoIP Tester (stresstest / callgenerator) - HTTP API - Voice Recording - Base Service Module Complete website - Capacity - Extra payment support modules and features