CallRex Professional & CallRex Express

How CallRex Works

CallRex is unique. By using innovative packet sniffing technology, CallRex software records and monitor calls without interfering with the IP PBX. CallRex monitors VoIP packets via port mirroring on the data switch connected to the IP PBX. Every VoIP packet that goes to and from the IP PBX is copied to the CallRex Server which then reassembles the packets into a recorded call, and compresses and stores the recorded call for later retrieval.

CallRex Professional and CallRex Express have two components: the CallRex Server and the CallRex Client. CallRex Servers coordinate all recording and monitoring. Call recordings can be stored on the local server, transferred to a central server (for multi-server deployments) or stored on network attached storage (NAS) or on a storage area network (SAN).

The CallRex Client is for managers, system administrators and others who configure how telephone activity will be recorded. Based on assigned access rights, the CallRex Client enables adding users, retrieving calls, monitoring calls in real-time, and administering CallRex. While the CallRex Client can be installed on any computer on the network, it is typically installed on the computers of administrators and managers.

CallRex Professional is designed to scale across multiple sites and thousands of users. CallRex Professional utilizes the WAN infrastructure to link a central CallRex Professional server with distributed CallRex Professional Servers, known as Data Collectors deployed in remote sites. Remote sites must have their own local dial tone and trunking. Data Collectors for multi-site deployments are not supported on CallRex Express.