> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/use-cases/applications/hosted-pbx.md).

# Hosted PBX

Hosted PBX, also called virtual PBX, is a phone system built and managed by a third-party provider. See how ProSBC sits in front of a hosted PBX service.

### Hosted PBX

Hosted private branch exchange (hosted PBX) is a telephone exchange system built, delivered and managed by a third-party service provider. It’s also known as a Virtual PBX and this technology provides small, medium-sized, and enterprise organizations with a sophisticated telephone system, while minimizing equipment costs.

### Benefits of Hosted PBX

* Initial and Ongoing cost savings
* Eliminate office boundaries
* Geographical Flexibility
* Local Presence
* Scalability
* Quick Setup
* Easy to use

### Typical Hosted PBX Sample

<figure><img src="https://3811773442-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiK3TemJSDhHz3xNMOvvk%2Fuploads%2F89qQgEr62ivhP4BREh4m%2Fimage.png?alt=media&#x26;token=2c5b78dd-dc3f-49ca-bc3a-010b437b2e10" alt="Hosted PBX topology: ProSBC fronts the service provider&#x27;s hosted IP PBX and connects it to the enterprise LAN phones."><figcaption></figcaption></figure>

### Configuration

* Hosted PBX Configuration Instruction

### Troubleshooting

<table><thead><tr><th width="200">Call Trace</th><th width="200">Test Call</th><th width="200">TBReport</th><th width="200">Advanced Troubleshooting of ProSBC</th></tr></thead><tbody><tr><td><ul><li><a href="/troubleshooting-and-support/troubleshooting-tips-and-actions/configuring-call-trace.md">Configure call trace</a></li><li>Retrieve call trace</li></ul></td><td><ul><li>Creating a Test Call</li></ul></td><td><ul><li>Capture a report of the system</li></ul></td><td><ul><li>Advanced Troubleshooting of ProSBC</li></ul></td></tr></tbody></table>

<br>

### References

* ProSBC Datasheet
* [Wikipedia Hosted PBX](https://en.wikipedia.org/wiki/VirtualPBX)


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