Practical example of VoIP cost savings in SMEs

A practical example of VoIP cost savings in SMEs only becomes truly convincing when you look beyond just the monthly bill. The greatest gains often lie in a combination of lower call costs, less management work, and improved accessibility. For a growing company with multiple employees, that difference can be noticeable within just a few months.

Take an installation company with 18 employees as an example. The company operates from a single office, but technicians are often on the road. Customers call regarding breakdowns, quotes, and appointments. The telephone system is located on-site, mobile calls are billed separately, and number changes or call forwarding are handled by various parties. Sound familiar? Then chances are you are paying more than necessary – not only in euros, but also in time and missed calls.

The starting situation: fixed costs, little overview

The company in this example had eight fixed telephones, eighteen mobile subscriptions, and one analog line for the door intercom. The monthly telephony costs consisted of a contract for the old exchange, ISDN and call bundle costs, mobile subscriptions, and separate maintenance costs. Together, this amounted to approximately €1,240 per month.

At first glance, that amount did not seem exceptional. The real bottlenecks lay elsewhere. An employee working from home used his personal phone to call customers back. Technicians were sometimes unreachable via the general number. In case of illness or vacation, an external party had to adjust call forwarding. And when a customer called after closing time, it was not always clear who had missed the call.

The telephone system was therefore still technically functional, but no longer suited the way the company operated. That is an important distinction. VoIP is not automatically cheaper simply because calling runs over the internet. The savings arise when you reorganize your telephony around your accessibility, employees, and management.

Practical example of VoIP cost savings for SMEs: the new setup

Before the switch, call traffic was assessed first. How many calls come in? At what times is it busy? Which employees need to be reachable, even outside the office? And which functions of the existing system are actually used?

Based on this, the installation company opted for a business VoIP solution with a single central company number, personal extensions, and a call group for scheduling and service. Office employees received handsets that operate easily via the network. Technicians received a business app on their mobile phones. With this, they make calls using the fixed company number without their private number being visible.

The setup also changed. During the day, calls go to planning first. If there is no answer, a second employee follows, and then the service manager. Outside working hours, callers are given a clear option for urgent calls. Non-urgent calls can be logged or go to a voicemail box for the appropriate department.

The door intercom proved to be no reason to stick with the old line. It could be replaced by an IP-enabled solution managed within the same network. However, this does require a thorough assessment of the existing equipment. Not every intercom, fax solution, or alarm dialer can simply be connected to VoIP. Checking beforehand prevents surprises during the switch.

What changed for employees?

The most important improvement was not that employees received a different phone. From now on, they could work from the office, at home, or on the go, with the same business accessibility. A customer calls the landline number and does not notice where the employee is located.

Moreover, the planner can see at a glance who is available. If someone does not answer the phone, the call is forwarded along the agreed route. This prevents customers from having to call back repeatedly or being left on hold with an absent colleague.

For the owner, this brought peace of mind. He no longer had to act as a backup for every missed call himself. Telephony became part of daily working arrangements, rather than a separate technical facility of which no one was the sole owner.

The costs before and after the VoIP switch

After the switch, the maintenance contract for the old PBX, separate lines, and a portion of the mobile call costs were cancelled. These were replaced by VoIP user licenses, handsets, and a one-time implementation.

The structural savings in this example amount to €805 per month, or €9,660 per year. A one-off investment of approximately €3,400 was made for the purchase and setup of devices, number porting, and implementation. As a result, the investment was recouped after just over four months.

These amounts are not a fixed standard. A company with a high volume of international calls, complex call center software, or a large amount of existing equipment will have a different business case. An organization may also consciously choose to invest more in features such as call recording, queue reporting, or integration with a CRM system. In that case, the direct savings are lower, while the operational value may actually be greater.

Where does the real saving come from?

Low call costs are visible on the invoice, but rarely tell the whole story. At this company, the financial gain lay primarily in the elimination of duplicate services. A fixed exchange, separate mobile telephony, and separate management gave way to a single environment.

In addition, changes became simpler. Adding a new employee, adjusting a call group, or setting up a home office no longer needs to lead to an on-site appointment. If the solution is properly configured, many adjustments can be made remotely. This saves external hours and prevents delays when your organization changes.

There is also a less tangible return: fewer missed opportunities. One missed call is not always a lost customer. But if a customer experiencing a technical issue cannot reach someone quickly, they may look elsewhere. For companies that depend on appointments, service requests, or quotation requests, accessibility is directly linked to revenue and customer satisfaction.

Pay attention to these conditions before you switch

A VoIP project does not start with ordering handsets. The quality stands or falls with the underlying connection and the configuration. If internet connections are unstable, this can become audible in conversations. Think of delays, interruptions, or a call dropping. Therefore, have the connection assessed in advance to determine whether it offers sufficient capacity and stability, especially when cloud applications, video calling, and guest networks are also active.

Security deserves the same attention. Business telephony is part of your ICT environment. Strong passwords, up-to-date equipment, separate networks where necessary, and clear access rights help prevent misuse. This is particularly relevant for telephony, as unauthorized use can quickly lead to high costs.

Number porting also requires planning. You want to retain your existing business number, but minimize downtime during the transfer. Schedule the transition for a quiet time, test call groups in advance, and inform employees about the new way of working. A brief instruction on call forwarding, availability status, and the mobile app often makes more of a difference than an extensive manual.

When does VoIP offer less benefit?

VoIP is not a solution that yields the same return for every organization. A sole proprietorship with few business calls may be satisfied with a simple business number and a mobile app. In that case, the savings on fixed telephones or an extensive system are limited.

Organizations with very specific peripheral equipment must also carefully investigate what is possible. Consider older intercoms, elevator telephony, alarm systems, or devices that rely on a traditional line. Sometimes replacement is sensible; sometimes a separate provision remains necessary temporarily. Transparency regarding this is better than an overly optimistic quote.

For most SMEs, therefore, the question is not just: what does VoIP cost per user? The better question is: what telephony do we need to assist customers effectively, allow employees to work flexibly, and keep management manageable?

A good discussion about your current call traffic quickly reveals where there is room for improvement. Cloudformatie can look not only at telephony, but also at the connection, workstations, and the surrounding management. This ensures that a lower monthly bill does not become a standalone benefit, but an accessible and manageable foundation for your organization.