OpenScape Voice is a native SIP-based real-time Voice over IP system scalable up to 100,000 users per system and a virtually unlimited number of users when OpenScape Voice systems are networked. It runs on highly reliable, redundant and faulttolerant hardware. It provides a complete and feature-rich set of business class features and can be deployed on premise, in a data center (as a private cloud), or as a multitenant hosted/public cloud solution.