How much does business phone service really cost?

The question of how much business phone service costs seems simple—until you compare quotes side by side. Then you suddenly notice price differences ranging from a few euros to tens of euros per employee per month. That’s because business phone service is rarely just about making calls. You’re also paying for availability, setup, support, and whether the solution will still fit your organization’s needs tomorrow.

For an SME, the price is often somewhere between 10 and 35 euros per user per month. But that’s only a useful guideline if you know what’s included and what isn’t. A cheap subscription can end up costing more in the long run if you later need call forwarding, call queues, fixed-mobile integration, or fast support.

How much does business phone service cost per month?

Monthly costs usually depend on three factors: the type of solution, the number of users, and the level of management. A small organization with five employees that primarily makes outbound calls often ends up paying less than an office with twenty people, a reception desk, and multiple call groups.

Modern business telephony typically involves VoIP, which means making calls over the internet. You typically pay per user or per extension. For a basic solution, expect to pay around 10 to 15 euros per user per month. This usually includes standard features such as calling, call forwarding, voicemail, and an online management interface.

As soon as you want more, the costs add up. Think of drop-down menus, queues, reports, integration with Microsoft Teams, fixed-mobile integration, or support for multiple locations. In that case, you’re looking at between 20 and 35 euros per user per month. Companies with specific requirements, such as call recording, CRM integrations, or extended business hours by department, may end up paying more than that.

That difference makes sense. A law firm that needs to be easily reachable at all times has different requirements than a small agency where everyone works primarily on the go. So the question isn’t so much which option is the cheapest, but rather which solution fits your workday.

What cost factors determine the cost of business phone service?

When comparing business phone plans, don’t just look at the monthly rate. The actual costs are often spread across multiple components. That’s precisely where the difference lies between a solution that looks affordable on paper and one that provides peace of mind in practice.

1. Subscriptions and Licenses

This is the fixed monthly fee per user, device, or number. Some providers offer a very low introductory rate but charge extra for features you actually need in practice. These include a menu system, an additional number, call recording, or a mobile app.

So always check what’s included as standard. A slightly higher monthly fee may actually end up being more cost-effective if management, support, and essential features are already included.

2. Devices and headsets

Not every company needs desk phones. Many organizations get by just fine with softphones on laptops and mobile devices. Still, there are plenty of situations where a desk phone or professional headset is the better choice—for example, at reception desks, for internal support teams, or in high-volume customer service roles.

Prices vary widely here. A basic desk phone often costs a few dozen euros, while more luxurious models can cost several hundred euros. Headsets vary just as much in price, particularly in terms of comfort and sound quality. Buying cheap may seem appealing, but if employees make calls every day, you’ll quickly notice the difference.

3. Installation and Setup

Business phone systems work well not just because the technology exists, but because they’re set up correctly. Who rings when? What happens outside of business hours? What message does a caller hear? And where is a missed call from the support line forwarded?

Some providers let you handle most of this yourself. While this saves money in the short term, it often leads to wasted time and frustration internally—especially if no one in your organization has any real experience with it. For professional setup, you usually pay a one-time fee, depending on the complexity.

4. Number portability and switching

It’s usually possible to keep your current phone numbers, but it’s not always free. When switching providers, there may be costs associated with number porting, temporary dual service, or assistance during the transition. These costs are often minimal, but they do add to the overall cost.

For many companies, a smooth transition is just as important as the price. If your availability is disrupted for even a single day, you’ll immediately notice the impact in customer interactions and internal unrest.

5. Management and Support

This aspect is often underestimated. Yet it has a major impact on the ultimate cost of business telephony—not just in terms of money, but also in terms of time and hassle. If something needs to be changed, you don’t want to spend ages searching through a portal or end up on hold.

A managed solution It’s often a bit more expensive per month, but on the other hand, updates, monitoring, and support are all taken care of. For many small and medium-sized businesses, this is actually more cost-effective, since you don’t have to allocate internal IT resources to phone systems that simply need to work.

Cheap isn't always a good deal

On paper, the lowest price often wins out. Yet in practice, it often turns out that cheap business phone service ends up costing more. For example, if call quality is inconsistent, features are missing, or support is only available via tickets. Then, as a business owner or office manager, you still end up spending time dealing with outages, troubleshooting, and explaining things to colleagues.

Consider a small administrative office with eight employees. A price difference of 6 euros per user per month seems appealing. But if the cheaper package doesn’t support call groups, business hours, or a reliable mobile app, you’ll run into problems as soon as the office grows or employees start working remotely. That often leads to an upgrade or even switching to a new provider.

Business phone service should align with how your company wants to be reached. Not just today, but also if you have an additional department in six months or find yourself working from home more often.

When do you pay more, and is that fair?

Paying more makes sense if it makes your job easier or eliminates risks. That sounds practical, but that’s usually what it comes down to. A higher monthly fee is often justifiable if it gets you better support, a smarter setup, or fewer outages.

This is particularly evident in companies with multiple locations, teams with different operating hours, or organizations that handle a high volume of customer calls. In such cases, features like call queues, reporting, call routing, and backup scenarios aren’t just nice-to-haves—they’re essential.

Integrations can also drive up the price. Calling via Teams or integration with CRM systems is convenient, but not essential for every business. If your employees primarily need to be reachable quickly, a simpler solution might be smarter. If, on the other hand, you derive significant value from centralized collaboration and insight into customer interactions, such an integration often pays for itself.

A sample calculation for small and medium-sized businesses

Suppose you have an organization with ten employees. You want to keep your existing phone numbers, have a main line, an automated menu, the ability to make calls from mobile phones and laptops, and a few desk phones for the office staff. In that case, you’ll end up with a setup roughly on this scale.

Licenses can cost between 150 and 250 euros per month. Devices and headsets are usually a one-time investment ranging from a few hundred to over a thousand euros, depending on the equipment you choose. A one-time setup and migration fee is often added to this.

If you opt for a fully managed solution that includes support and assistance with changes, the monthly fee will be slightly higher. On the other hand, your organization won’t have to figure out on its own why a call group is suddenly configured incorrectly or why an employee isn’t receiving calls at home.

When you look at it that way, business telephony is rarely the biggest IT expense. But it is one of the most noticeable. If the phone system goes down, everyone notices right away.

How can you compare quotes effectively?

Always ask about the details—not just the monthly fee. A good quote will specify which features are included, what the one-time costs are, how support is handled, and what happens in the event of outages or changes.

Also consider scalability. Can you easily add or remove users? Can you switch to Teams calling or activate additional numbers later without having to start over? The more easily a solution adapts to your needs, the less likely you’ll have to choose a new one in a year’s time.

Personalized support often makes all the difference here. This is especially true for small and medium-sized businesses, where phone service is usually not an end in itself but a means of staying accessible to customers, colleagues, and suppliers. In such cases, you want to speak quickly with someone who understands your situation and can help right away.

How much does business phone service cost if you want to set it up properly?

The honest answer to the question of how much business telephony costs is therefore: usually less than what a poor solution will cost you. For most small and medium-sized businesses, a realistic investment ranges from 10 to 35 euros per user per month, plus any one-time costs for equipment and setup. The right price depends on your availability, working methods, and growth plans.

When reviewing quotes, don’t base your decision solely on the lowest monthly price. Instead, focus on what you get in return in terms of clarity, support, and reliability. That’s often what sets apart a phone service you can rely on every day from one that just seemed cheap when you signed up.

At Lennmedia, we prefer to start by looking at how your organization operates rather than offering a standard package. After all, effective business telephony doesn’t start with a price per user, but with the question of what your team needs to be reachable without any hassle.

A few euros' difference per month doesn't mean much. The peace of mind that comes with a solution that just works usually means a lot more.