What is the main purpose of a PBX system?

The primary purpose of a PBX (Private Branch Exchange) system is to connect multiple telephone lines within an organization. A PBX system allows for the management of internal and external phone calls, enabling communication among staff members as well as facilitating calls to and from external lines. By doing this, it consolidates numerous phone lines into a single network, which can be more cost-effective and efficient for businesses with multiple users.

The functionalities of a PBX system can include call forwarding, voicemail, and automated attendants, among others, enhancing productivity and organization in a professional setting. This is particularly important in business environments where communication is critical.

Other options do not align with the core functions of a PBX system. For instance, providing direct internet access does not fall within the role of a PBX, which is instead focused on telephony. Serving only residential customers is misleading, as PBX systems are primarily designed for business use rather than residential applications. Amplifying incoming signals is also not a function of PBX systems; their role is centered around managing call traffic rather than adjusting signal strength.