PBX
PBX (Private Branch Exchange) is a private telephone network used within an organization to manage internal and external voice communications. It enables features like call routing, voicemail, conferencing, and call forwarding, typically connecting to the public switched telephone network (PSTN) or VoIP services. Modern PBX systems often integrate with digital and cloud-based technologies to support unified communications.
Developers should learn about PBX when building or maintaining telephony systems, call centers, or unified communication platforms, as it provides core infrastructure for voice services. It's essential for roles involving VoIP development, CRM integrations, or enterprise communication tools, where understanding call handling and telephony protocols is required.