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Icone de Koesio pour la Téléphonie fixe et Mobile | Communication


Landline and mobile phones for businesses

The new challenges facing landline and mobile phone communications.

In the era of remote and flexible working, you need a landline and mobile telephony solution in order to ensure your staff are able to continue to meet the needs of clients, both current and potential. With PSTN set to be phased out in 2022, and teleworking very much on the rise, the switch to IP telephony, which uses your internet connection, has a number of advantages. An easy and scalable solution when you have to adapt your call-handling areas, it can also be adapted to your unified communications needs, enabling convergence between landline and mobile telephony. A comprehensive solution for all your communication needs. IP telephony.

IP telephony

IP telephony through our IP PBX systems and virtual IP servers, hosted either at your site or at one of our data centres.

SIP trunking

We can develop voice connections for your IP communications, with security levels tailored to meet the challenges facing you.


A full IP solution for a fully virtual telephony service through IT apps.


A multi-operator professional fleet, with a catalogue of business tariffs and handsets tailored to meet your needs.

Take the stress out of managing your fleet of landline and mobile phones with our maintenance contracts

A comprehensive maintenance contract:

> Telecom equipment installed and guaranteed for parts, labour and call-out

> No deductible, formalities or depreciation for the duration of the contract

> 99.85% Contractual annual service availability commitment

> Contractual response time of 2 hours

> 24 hours a day/7 days a week for total breakdowns

A local service:

> Remote maintenance for your telephony: Our telecom personnel can repair your equipment remotely when this is necessary for scheduling reasons.

> A local presence: technicians operating on the ground in our agencies, getting you back up and running as quickly as possible.

> Client portal: In order to cope with changing needs, our technicians are able to modify the attribution of direct numbers and names on your devices, in addition to call routing.

La téléphonie IP, Autocom & IPBX par Koesio

IPBX, Autocom and IP telephony

Voice over IP has revolutionised business telephony, making it easier to deploy your business telephony network.

IP PBX means that you now only need your internet connection in order to make calls. Your phones will be directly linked to this business telephone system, transporting voice over the web network and via your local IT network.

In this way, costs are pooled, making it easier to deploy new lines should this become necessary. You can also pool your telephony across your sites within the same infrastructure.

Fully virtual IP telephony

Softphone technology means you no longer need a telephone system - instead, you can incorporate your telephony solution into your PC.

Enter the world of unified communications, with voice, email and chat channels all incorporated into your IT telephony application (softphone).

A new dimension for your communications.

Avec Koesio, intégrer la solution de téléphonie sur votre PC c'est possible !

Landline and mobile convergence at your fingertips

Share just one number with your correspondents, who will be able to get you either on your landline or your mobile
One single messaging service for all of your landline and mobile messages, which you can also view using electronic messaging
You'll be able to check all your messages on your mobile while on the go, meaning you won’t have to swing by the office.
Accept no compromises - it’s time for a telephone service that meets the needs of your company.
Profitez de l’abonnement voix avec le service Trunk SIP

Voice subscription with SIP trunking service

SIP trunking is set to replace analogue and digital telephony, allowing external calls on the public telephone network.

Calculated based on the number of simultaneous communications you want to have, it comes in pairs and for each channel requires a speed of 100 KB. So, for 10 simultaneous communications, you need to set 1 MB of your internet connection aside for VOIP.

This is what makes it so important to combine it with an SDSL or fibre internet connection, with a portion exclusively for voice in order to ensure consistently high-quality communications.

This solution also lets you make free calls between sites within your company, with attractive tariffs for external calls.

Managing your mobile fleet:

Koesio’s mobile telephony range is a multi-operator solution that is perfect for handling network preference issues for individual users. Our pre-packaged subscription plans are tailored to suit different types of corporate users and their flexibility requirements, with a catalogue of Samsung and Apple devices, ranging from the simplest to the most advanced. Boost staff productivity and responsiveness with the data options from our mobile range, no matter where they are:
> Send and receive emails
> Synchronise contacts
> Synchronise schedules
> Access the internet
> Modem access point
> Access business applications

téléphonie mobile pour les professionnels

Get in touch with our staff for your landline and mobile telephony projects

For more than 30 years, we have been providing companies and local authorities with landline and mobile telephony. From advice to the recommendation of a solution adapted to your needs, do not hesitate to contact our teams.

Our experts, located in 190 agencies in France, Belgium and Luxembourg are there to advise you and answer your questions within 24 hours!
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