iSoftswitch is Linux based VoIP SoftSwitch. iSoftSwitch offer a complete VoIP switching and billing solution. iSoftswitch enables you to provide a complete VoIP calling service using SIP (Session Initiation Protocol). iSoftSwitch has strong call switching capabilities and show real-time call process which generate form your carriers. iSoftSwitch can be the back-end switching and billing system for your Wholesale termination, reseller service. All types of end points like PC2Phone,Mobile Dialer and Nokia SIP Settings can be registered in the iSoftswitch.