VoIP is priced per user per month, and the sticker price is rarely the whole bill.
Term length and bundled features move the monthly number as much as the seat count does.
Ask the provider for the all-in monthly total before you compare ads.
Each range below is the published premium price, widened by that vendor's confidence band. State tax is not included, because it depends on where you are. Prices as published by each provider. Data as of 2026-10-04.
A TechEstimate is a range. A written proposal is the number you can hold a provider to.
These phone systems are alphabetical. This is not a quality ranking.
TechlyScore ranks them for your setup when you compare in real time.
123NET: $21 to $39 per user/month. 8x8: $26 to $30 per user/month. Aircall: $35 to $45 per user/month. AireSpring: $24 to $46 per user/month. Allworx (Windstream): $18 to $32 per user/month. AT&T Office@Hand: $26 to $34 per user/month. Avaya Cloud Office: $22 to $28 per user/month. BCM One: $19 to $35 per user/month.
More providers are in the same table. The list stays alphabetical.
The first invoice can add fees that the ad price skipped.
Ask for the all-in total. If they will not say it, that is the answer.
Upload your bill if you have one. Or adjust your sliders if you are starting fresh.
You could pay less. You could also pay about the same and save the research time.
The next step on this page is to upload your bill.
It is priced per user per month, and the sticker price is rarely the whole bill. Term length, how many seats you buy, and which features are bundled all move it. Ask for the all-in monthly total.
The monthly cost is the seat price times the number of people who need a phone. Hardware, number porting, and setup can add a one-off amount in the first month. Both parts belong in any comparison.
A single number is usually included with a seat rather than billed separately. Extra direct numbers, toll-free numbers, and vanity numbers normally carry a small monthly charge each. Ask how many numbers your plan includes.
Quotes often show the base service and leave out taxes, regulatory recovery fees, and one-off setup or porting charges. The first invoice carries all of it. Ask for the all-in total before you sign, not the advertised rate.
Calls within the US and Canada are normally included. International calls, toll-free inbound minutes, and some conference features are usually metered. If your plan is described as metered rather than unlimited, you are billed per minute.
Related: how-much-does-a-business-phone-system-cost, voip-vs-landline-for-business, is-voip-good-for-small-business. Glossary: voip, pbx. How to buy.
Data as of 2026-10-04.