QC2 combines the features of an IP PBX, IP based large call center software & industrial grade conferencing bridge.

The IP PBX from QC2 has the following advantages

SIP-Based, Hosted PBX Platform
True Multi-Tenancy Architecture
High Reliability with Redundancy Protection
Supreme Scalability up to 1,000 Tenants on One Server
Wide Variety of Rich IP PBX Features
Support for both Windows and Linux OS