What is PBX?
A PBX (Private Branch Exchange) is a private telephone system that routes calls within a business and connects internal users to external phone lines.
PBX Explained
A PBX (Private Branch Exchange) is the switchboard that routes calls inside an organization — connecting extensions to each other and to the outside phone network, handling features like call transfer, hold, voicemail, call queues, and IVR menus. Traditional PBX systems were physical hardware boxes installed on-site, requiring dedicated phone lines, wiring, and IT maintenance. Modern businesses increasingly replace on-premise PBX hardware with cloud PBX (hosted VoIP), which delivers the same routing and call-handling features as an internet service with nothing to install. Connectoo takes the cloud approach: it provides PBX-style call routing, queues, and call handling entirely in the cloud, with calls placed from the browser via WebRTC or the mobile apps — no PBX box, SIP handsets, or SIM-based calling, and numbers available in 60+ countries. The difference from call-only VoIP and PBX providers like CallHippo, Aircall, or Dialpad is the built-in CRM: every routed VoIP call lands on one customer timeline alongside native WhatsApp chats and SMS, with auto follow-up workflows that span all three channels. That unified-channel layer is what call-only systems cannot offer. Connectoo serves teams of every size, from solo founders through enterprise.
How Connectoo Implements PBX
Connectoo includes features directly related to pbx. Explore these capabilities to see how the concept works in practice within a unified communication CRM.
Related Terms
These glossary terms are closely related to pbx. Understanding them together gives you a more complete picture of communication CRM concepts.
Cloud PBX
A cloud PBX is an internet-hosted phone system that provides business call routing, extensions, and call-handling features without any on-site hardware.
VoIP
VoIP (Voice over Internet Protocol) is a technology that transmits voice calls over the internet instead of traditional phone lines, letting businesses place and receive calls from a browser or mobile app.
SIP (Session Initiation Protocol)
SIP (Session Initiation Protocol) is the signaling protocol used to set up, manage, and end voice and video calls over the internet in VoIP systems.
Call Queue
A call queue holds incoming calls in line and distributes them to available agents in order, so callers wait rather than hit a busy signal when everyone is occupied.
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