How Much Does a PABX System Cost for a Small Office
PABX pricing depends on more than just extension count. Here is what actually goes into a small office quote.
PABX pricing questions almost always come with an unspoken assumption: that cost scales in a simple, linear way with the number of extensions. In practice, several other factors matter just as much, which is why two offices with the same headcount can get noticeably different quotes for their PABX system.
What Drives PABX Cost Beyond Extension Count
Extension count is a starting point, not the whole picture. Cabling condition, whether the office has existing structured cabling or needs new runs, the specific handset models chosen, and whether the system needs to integrate with existing software all affect the final number.
Hardware vs Installation Costs
A PABX quote typically breaks down into the exchange hardware itself, handsets per extension, and the labor involved in installation, cabling and configuration. Installation and cabling can end up being a larger share of the total than the hardware, particularly in an office without existing structured cabling in place.
Small Office Cost Ranges in Practice
Exact pricing depends on your specific requirements, but a few factors consistently move a small office quote up or down:
- Existing structured cabling in place, versus needing new cable runs to every extension
- Basic handsets versus feature-rich handsets with larger screens and additional buttons
- Straightforward call routing versus more complex setups like hunt groups or auto-attendants
- Standard installation hours versus after-hours or weekend installation to avoid disrupting a working office
One-Time Cost vs Ongoing Fees
An on-premise PABX system typically involves a larger one-time cost with minimal ongoing fees after installation, which differs from a cloud phone system's lower upfront, subscription-based pricing. Our PABX vs cloud phone systems comparison covers this tradeoff in more detail if you have not yet decided between the two.
Getting an Accurate Quote
The only reliable way to get an accurate number is a proper site assessment that accounts for your specific extension count, cabling condition and feature requirements, rather than a generic per-extension estimate. Our guide to getting an accurate quote covers what a thorough assessment should include.
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Common Questions from Our Clients
Is a cloud phone system always cheaper than PABX for a small office?
Not necessarily over time. Cloud systems usually have lower upfront cost but ongoing monthly fees, while PABX has higher upfront cost and lower ongoing fees, so the cheaper option over several years depends on your specific numbers.
Does existing cabling reduce PABX installation cost significantly?
Yes, if usable structured cabling is already in place, installation cost is generally lower since new cable runs are one of the more time-consuming parts of a PABX installation.
How many extensions does a small office typically need?
It varies by business, and our [how many phone extensions does your office need](/blog/how-many-phone-extensions-does-your-office-need/) guide walks through how to size this properly rather than guessing.
Are there ongoing maintenance costs for a PABX system?
Ongoing costs are generally minimal for a well installed on-premise PABX system, though occasional support or expansion work can come up as the business grows.
Can you provide a fixed quote before starting the installation?
Yes, we provide a clear quote based on a site assessment before any installation begins, so there are no surprises once work starts.
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