Use any device with internet access as your business phone. Stay location-independent and always available.

You don’t need oppresive contracts. You don’t need telephone systems standing around. All you need is an Internet connection.

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Consertis Cloud Telephony​

You live and work as a digital nomad?
You don’t need or want your own telephone system?
But still want to stay connected in best HD-voice quality everywhere and always?

With Consertis Cloud Telephony you are always connected, even without a device based telephone system. Make low-cost, location-independent and fail-safe calls via the Internet.

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What is included in Consertis Cloud Telephony:

  • Countless features & functions
  • Continuous support, also at your location
  • Can be operated in combination with other company locations
  • Live chat with presence display directly from your website, webinar and video conferencing solutions, and more.
  • Premium state-of-the-art telephone system
  • Support-Hotline
  • Telephony hardware can be booked as add-on
  • Cloud-backup for your telephone system
  • Monitoring of your telephone system
  • Call-in admin support for your system
  • Based on Wildix

Always connected – no matter where

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Connect existing landline/fax devices via router or adapter and you are ready to go.

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All you need to do is download a VoIP-App for your specific smartphone – and you can start making phone calls over the internet right away.

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You already have all you need. Adapter & co. are not necessary. Plug it in, dial a number and listen to it ring.

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Install the softphone and start making phone calls with headset, Bluetooth ear phones or the installed speakers.

Features & Functions​

You Name It, We Have It.

ou get much more than just a telephone system. With the Unified Communications solution from Consertis based on Wildix you get a lean and at the same time highly efficient communication apparatus. Chat, video conferencing, webinars, presence display, and much more. – all in one interface.

Needless to say, our Cloud telephony systems are all fully equipped with standard features such as phone conferences, Fax2Mail, time-controlled forwarding, telephone exchange, and much more.

Next to over 150 standard features, you and your employees can look forward to the following unique features – be it in the office, at home or on the go:

Cloud telephony

Stay connected always and everywhere. Even without your own telephone system.

You don’t want to operate your own telephone system? Not bother with backup and monitoring? Yet still know you can rely on our admin-support by your side? You have less than 20 extensions? And still want all the advantages of the best telephone system of all times?

Additional Support Packages

Book the add-ons you need: whether it is cloud-backup, telephone-admin-support or local hands-on support. Extend your local telephone system with our additional support offer.

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Overview of all per-minute charges and basic bundles- in Austria as well as internationally to landline and mobile phone networks.

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Other Services

€ 120.-

per hour

Other Services – we are always by your side for individual requests! And we work as speedily as possible.


Yes. You install a VoIP app (Sip-Phone) like Groundwire, Zoiper or similar.
These integrate with your smartphone, and with them you can call your contacts as you would from the telephone system. Internal calls are free, and external callers will see your landline number. Your smartphone only needs internet access.

With VoIP (Voice over Internet Protocol) you make your phone calls over the internet yet comparable to a classic ISDN landline. Until now, two separate networks were necessary for internet use and landline extension. VoIP allows you to make your calls via the same network as your internet connection.

In short: No hardware incompatibilities. Our system can simply be migrated in case of hardware replacements with continuous system updates guaranteeing standard compatibility.

Extended version: With customary telephone systems, if a device breaks then it can only be replaced with a new one from the same model range. If a model range is no longer available (after several years model ranges are usually phased out) then the ENTIRE telephone system needs to be replaced because of one defective device generating high costs. This will not happen with a Consertis telephone system since it is based on Fusion PBX and SIP-enabled devices. They are compatible with all devices true to standard and we can guarantee the exchange of defunct telephone devices even 10 years from now.

No. Our telephone system has no limits. You can have as many extensions and use as many channels as you like. Only the hardware in use sets certain limits – but you will receive sound advice from us before choosing the best possible hardware solutions.

No. The telephone system is set up according to the specifics of Consertis as carrier network.
This gives you the safeguard of having a one-stop contact and rapid problem resolution in case of any complications.

Almost anything. Please speak to our consultants regarding your exigencies under phone: +43-1- 39800 or via email We welcome every new challenge!

CRMMicrosoft 365, Teams.

You will find the prices for our bundles in our online shop. For all unbundled services we charge € 120 per hour (excluding VAT) accounted for in 15 minute segments. And we are speedy!

For all those who have more than 20 extensions and want to maintain physical control or simply do not want to outsource. This is especially true for businesses and institutions that must meet high compliance standards such as public service, medical practices, law firms, etc.

VoIP- or SIP-Apps are applications that connect your smartphone to your VoIP/SIP-enabled telephone system. In doing so, your smartphone turns into the equivalent of your desk phone and you can be reached under your landline number respectively with in-coming calls, your customers see your business and not your mobile phone number. Some of these apps offer basic features free of charge, other features need to be bought.
We recommend the Apps ZOIPER and Groundwire.

Telephone systems are complex and Fusion PBX is no exception. We stay by your side in case you need any support. Respectively we offer valuable additional services such as back-ups.

Yes. You install a softphone such as Zoiper, Ninja, Jitsi or similar.
Depending on the software, these can also integrate with Outlook. This allows you to call your contacts directly from Outlook. Internal calls are free, and external callers will see your landline number. Your PC only needs internet access.

It not only works, but works so well that Austria A1-Telekom has started to switch off standard ISDN-lines in 2020. So what are you waiting for?

Our on-prem solutions come with according support suites.
They range from simple call-in support to complete support arrangements including hardware replacement of the system server.

Of course! Please contact our sales & distribution representative by phone: +43-1-39800 or email

With all devices and every software based on the SIP-standard.
By now, this is a vast market and there is no requirement left that cannot be met.

Yes. We also carry out installations on Raspberry Pi (16 extensions).

Consertis IT is always available for problems on the ground with routers, firewall, switches and all other VoIP components.

Software you install on your PC/MAC in order to make phone calls via your telephone system, turning each computer into an extension. An actual telephone device is no longer necessary. The basic features of this type of software often are free of charge; other features can be bought as add-ons We for instance recommend ZOIPER.