Cisco CallManager

Cisco CallManager is a software system that manages a company's phone calls over an IP (internet protocol) network. It acts as a central hub, connecting various phones and communication devices, allowing users to make, receive, and transfer calls efficiently. It handles call routing, voicemail, conferencing, and other communication features, enabling seamless internal and external communication. Essentially, it replaces traditional phone lines with internet-based technology, providing a flexible, scalable, and integrated solution for business communication needs.