Many companies still use telephony tied to a physical installation, with an on-site switchboard and little flexibility. The result: difficulty in managing remote calls, lack of visibility over business activity and dependence on a specific location.
Today, the question is no longer simply to have a fixed number, but to know how to make it accessible everywhere, without technical constraints, while maintaining a professional image.
Opting for a virtual fixed number means understanding how it works, what it’s really used for, and the implications in terms of costs and organization. Here’s a structured analysis of whether this solution is right for your business.
Points to remember
- A virtual fixed number is a business number accessible via the Internet, without a physical line or SIM card, based on VoIP technology.
- It centralizes a company’s calls while remaining usable from a computer, smartphone or compatible IP phone, wherever teams are located.
- Combined with a cloud switchboard, it provides access to key features such as call routing, real-time supervision, recording and CRM integration.
- The cloud model brings greater flexibility, with rapid activation, no hardware, no commitment and pro rata billing.
- For a company, a virtual fixed number isn’t just for receiving calls. It becomes a central point for organizing communications, structuring teams and managing day-to-day activity.
What is a virtual fixed number?
A virtual fixed number is a geographic business number that operates via the Internet.
It looks like a classic 01, 02, 03, 04 or 05 number. For your customers, nothing changes. The difference lies in the infrastructure.
Unlike a traditional telephone system, the number is not connected to a physical line on your premises. Instead, it’s hosted in the cloud and operates using VoIP, or Internet telephony.
In concrete terms, calls are routed to a web interface, a mobile application or a compatible IP phone.
So it’s not a landline in the physical sense of the term. It’s a business number accessible from anywhere with an Internet connection.
This approach provides greater flexibility. Less dependence on a physical site.
And centralized call management, even for teams spread over several sites or working from home.
The difference between a traditional fixed number and a virtual fixed number
Here’s the concrete difference between the two approaches.
| Traditional landline number | Virtual landline number |
| Connected to a physical line | Operates 100% in the cloud via the Internet |
| On-site technical installation | Fast, hands-free activation |
| Location-dependent | Accessible from anywhere |
| Long-term commitment | No obligation |
| Complex evolution | Add or remove in a few clicks |
This table sums up the change in logic. We’re no longer talking about equipment installed in an office, but a professional number controlled from an online interface.
How does a virtual landline number work?
The principle is simple. The number exists in the cloud, and calls are routed over the Internet using VoIP, or Internet telephony. No physical lines are installed on your premises.
Let’s take a look at how it works in everyday life
1. Incoming calls
Your customers dial your fixed business number, for example 01 or 04.
For them, it’s a classic call.
But instead of arriving at a switchboard installed in a specific office, the call is routed to your online interface.
It can happen :
- on your webphone from a browser
- on your mobile application
- or on a compatible IP phone
You can also set up a voice menu, a queue or routing to the right service.
2. Outgoing calls
From your interface, you can call your customers just as you would on a normal telephone.
The difference: it’s your company number that’s displayed to the recipient.
Even if you’re calling from a laptop or smartphone connected to the Internet.
This allows you to maintain a professional image, without having to depend on a fixed desk in an office.
3. Redirection
A virtual fixed number can be configured to suit your organization.
Calls can be redirected :
- to a cell phone
- to a webphone
- to a group of agents
- according to set schedules
For example:
During the day, calls reach the sales team. After 6 p.m., they are transferred to a greeting message or a duty team. Everything is controlled from an online interface.
4. Multi-support
The number is not linked to a single device.
It can be used on :
- a computer
- a smartphone
- a compatible IP phone
You can change device without changing number.
Above all, let’s be clear about one thing:
This operation does not rely on a SIM card.
- No eSIM.
- No specific mobile package.
The system operates exclusively via the Internet, using VoIP technology.
Available number types
A virtual fixed number can take many forms, depending on your business needs, your area of activity and your location strategy.
Here are the main types of numbers available.
Geographic number (01 to 05)
This is a fixed number associated with a specific geographical area.
For example:
- 01 for Île-de-France
- 02 for the North-West
- 03 for the North-East
- 04 for the South-East
- 05 for the South-West
This type of number gives you a local presence. A prospect in Lyon will feel more confident calling an 04 number than a generic national number. It’s a simple way to reinforce your company’s regional presence.
Number 09
The 09 number is a non-geographic national landline number. It is not linked to any specific region.
It’s the ideal solution for companies that operate nationwide, or that don’t need a specific local presence.
It offers the same flexibility of use as a geographic number, but with no territorial reference.
International numbers
Fixed-line numbers are available in over 50 countries.
This makes it possible to create a local presence abroad without opening a local office.
A customer in Spain may call a local Spanish number, while your teams work from France or elsewhere in Europe.
The operation remains the same: the number is hosted in the cloud and accessible via the Internet.
Portability
You can keep your existing fixed-line number.
This is called portability. This means that your current number can be transferred to a cloud telephony solution, without changing your contact details with your customers.
You keep your telephone identity. But you benefit from a more flexible and modern infrastructure.
Professional use cases
A virtual fixed number is the answer to very specific situations.
It’s not just a question of modernizing telephony.
It’s a question of adapting the infrastructure to real business needs.
Here are the most common cases.
Nomadic sales
A salesperson is rarely at his desk all day.
- Customer appointments.
- Getting around.
- Teleworking.
With a virtual landline number, he calls from his computer or smartphone connected to the Internet. But it’s the company number that’s displayed.
He does not give out his personal number. He maintains a professional image.
And the company retains control of the number.
Growing SMEs
Many SMEs start with a simple solution, then quickly reach their limits.
- Add new collaborators.
- Need to transfer calls.
- Setting up a structured telephone reception service.
A virtual fixed number lets you set up a cloud switchboard without on-site hardware.
- Add users in just a few clicks.
- Schedule configuration.
- Routing to the right contacts.
All without the need for a physical installation.
Teleworking
When teams work remotely, a traditional infrastructure becomes restrictive.
With a virtual landline number, each employee can receive and make calls from home.
- The number remains unique.
- Management remains centralized.
The company operates as if everyone were in the same place.
Multi-site organization
Some companies have several branches or establishments. A virtual landline number allows calls to be centralized and distributed to the right site or team.
For example:
An incoming call can be automatically routed to the nearest branch or to a specific service.
Management no longer depends on a single switchboard in a single building.
Developing a local image
A company wishing to expand into a new region can obtain a local geographic number.
- It has a credible regional presence.
- Without immediately opening a local office.
The number is local to the customer. But the infrastructure remains 100% cloud-based and remotely controlled.
Features included with your virtual fixed number
With Kavkom, a virtual landline number isn’t just about receiving calls.
The solution integrates the key functionalities required for standard professional use, without adding complex modules or dispersed options.
The objective is clear: to structure call management and support sales performance.
Cloud switchboard
Each Kavkom virtual landline number is linked to a cloud switchboard.
You can :
- transfer calls
- create agent groups
- set schedules
- organize queues
All 100% cloud-based, with no hardware restrictions.
IVR – Interactive Voice Response
Kavkom lets you configure a personalized voice menu.
For example: “Press 1 for sales, 2 for support.” This automatically directs calls to the right team and structures customer reception.
Call recording
Calls can be recorded and viewed from the interface.
Useful for :
- quality monitoring
- training
- traceability
Data is stored in the cloud, with access rights management.
Real-time supervision
Managers have access to a real-time dashboard:
- current calls
- available agents
- business statistics
This makes it possible to monitor teams and quickly identify areas for improvement.
Native CRM integration
Kavkom integrates with the market’s leading CRMs.
When a contact calls, their details can be displayed automatically. Calls and notes can be synchronized.
It’s not about replacing a general CRM. The value lies in seamless integration with the tools already used by the company.
Click-to-call
From a CRM or browser, a number becomes clickable. One click is all it takes to launch the call with your fixed company number displayed.
Intelligent routing
Calls can be distributed according to specific rules:
- availability
- competence
- priority
This avoids unnecessary transfers and improves flow management.
Kavkom is a 100% cloud VoIP telephony solution, designed to equip in-house teams with a flexible infrastructure, with no commitment and pro rata billing.
Virtual fixed number rates
The price of a virtual fixed number depends on the level of usage and the scope of calls required.
Kavkom’s price structure is structured around three packages. All are 100% cloud-based, with no on-site installation required.
Basic – €8 excl. tax per user per month
- Unlimited incoming calls
- Annual payment
- Yearly savings
This formula is suitable if your main need is to receive calls. It does not cover outgoing calls.
Pack Plus – €42 excl. tax per user per month
- Unlimited calls to landlines and mobiles
- France, USA and Canada
- Annual payment possible
- No obligation
- Pro-rata billing
This offer corresponds to standard business use. Incoming and outgoing calls included, with no hidden cap.
Custom Pack On request
- Customized subscription
- Unlimited calls to landlines and mobiles worldwide
- Settings tailored to your organization
This formula is designed for structures with international or specific needs.
What’s included in all subscriptions
All plans provide access to the platform’s key features, including :
- Fixed-line numbers in over 50 countries
- Web, PC and mobile application
- Click-to-call
- Customizable switchboard
- IVR and call group management
- Call log and recordings
- Internal and external transfers and referrals
- Outgoing number selection
- Supervision and advanced statistics
- CRM and API integration
- Onboarding and human support by email and telephone
Pro-rata billing
Pro-rata billing means that you only pay for the period you actually use.
If you suspend lines during an off-peak period, for example in August, billing is adjusted automatically.
There’s no long-term commitment. You keep control of your costs.
FAQ Virtual landline number
How long does it take to activate?
Activating a virtual landline number is usually a quick process. Once the account has been created and the number selected, activation can be completed in just a few minutes.
In the case of porting an existing number, additional time is required for the administrative transfer.
Can I keep my current number?
Yes. You can keep your existing fixed-line number thanks to portability.
Your number is transferred to the cloud infrastructure, without your customers having to change your contact details.
Can I send SMS from a virtual landline number?
No. A virtual fixed number is designed for Internet telephony. It is not a mobile solution with a SIM card, and is not intended for sending native SMS messages.
Is there a commitment?
No. Offers are without long-term commitment. Billing may be adjusted on a pro rata basis according to the period of use.
Conclusion
A virtual fixed number is a logical response to changing business practices. Teams work remotely, organizations are spread over several sites, and customer relations demand greater flexibility.
Switching from a physical infrastructure to 100% cloud telephony means greater flexibility, visibility and cost control, while retaining a professional image with an identifiable geographic number.
If you’re looking for an easy-to-deploy, no-commitment, pro-rated solution, Kavkom offers a complete VoIP telephony infrastructure for sales teams and growing businesses. You can try it for free or book a personalized demo to see how a virtual fixed number can fit into your organization.
