VoIP Glossary

What is Cloud PBX?

Cloud PBX: A Cloud PBX (Private Branch Exchange) is a business phone system hosted in the cloud rather than on physical hardware at your office. It provides all traditional PBX features — extensions, call routing, voicemail, conferencing — delivered as a service over the internet.

How It Works

Cloud PBX software runs on VestaCall's servers, not yours. Your team connects via apps or IP phones. Calls route through VestaCall's network with the same features as an enterprise PBX — but with no hardware to buy, maintain, or replace. Changes to extensions, menus, and routing are made in a web dashboard.

Business Use Cases

Small businesses replace expensive on-premise PBX hardware with cloud PBX to get enterprise features at a fraction of the cost. Multi-location companies use cloud PBX to unify communications across offices with one system. Companies undergoing digital transformation use cloud PBX to eliminate physical phone infrastructure.

How VestaCall Uses Cloud PBX

VestaCall's cloud PBX includes unlimited extensions, auto-attendant, call recording, voicemail, call queues, and analytics — all for $19/user/month. No hardware, no IT staff, no maintenance contracts.

VestaCall Cloud PBX

Frequently Asked Questions

What's the difference between Cloud PBX and traditional PBX?
Traditional PBX requires physical hardware (servers, phone cards) installed at your office. Cloud PBX is hosted by a provider — no hardware, no maintenance, lower cost.
Can I use my existing desk phones with Cloud PBX?
If your existing phones are SIP-compatible (Yealink, Cisco, Polycom), they typically work with VestaCall's cloud PBX. VestaCall also works without desk phones — just a computer or mobile app.
Is Cloud PBX reliable enough for business use?
VestaCall's cloud PBX is built on redundant infrastructure with 99.999% uptime SLA — equivalent to under 6 minutes of downtime per year, which is more reliable than most on-premise PBX systems.
How many extensions can I have?
VestaCall supports unlimited extensions on all plans. Each user gets a unique extension. You can also create ring groups, shared extensions, and virtual extensions for departments.
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