The questFON virtual telephone system offers a modern, smart telephony solution for professional business communication.

Connect your existing telephone system with the questFON SIP trunk and telephone immediately worldwide at low rates.

With call tracking, in combination with Google AdWords and Google Analytics, you can track which marketing measures and which lead generations are effective.

We are pleased to assist you.



.simple .smart .flexible

questFON is the new Cloud Telephony Service of the telequest group and offers a modern, smart telephony solution for professional business communication.  The questFON telephone system is no longer installed at the company itself using costly technology but is operated instead via several highly secure questFON server centres.  Your telephone system is accessible through your Internet connection and our VoIP technology.  You can telephone at low minute rates and are accessible as usual for your customers and partners on your telephone number.  We take care of the relocation of your existing telephone number free of charge or switch you over to a new number on request.  You are spared high hardware procurement and operation costs.  You can choose freely between VoIP-enabled telephone sets or follow our recommendations. 

With the questFON Telephony Service, small and medium-sized companies benefit from the functions of the performance of a large-enterprise telephony solution: 

maximum flexibility

You can call independently of your location by using your landline number on a mobile basis.

ready to use immediately

Install the virtual telephone system yourself in a few simple steps or have it delivered preconfigured on request.

cost optimisation

Benefit with questFON from low national and international rates.

numerous features

Demonstrate your professional company presence from the very first telephone call.



Your advantages at a glance

Never miss an opportunity for new business again.

The business world is becoming increasingly mobile.  Whether you are working at the office, at home, at customers or on the road, questFON supports your accessibility through mobile apps and can therefore also be used independently of location.   Combined with the service telephony features, the core business of telequest, the service can be extended by means of professional recorded messages, call centre services, service numbers and much more.  


Gain a competitive advantage by getting more out of your telephony.

The digitisation of the business world is well underway.  Link your CRM with questFON and increase your productivity with the information gained from the reports. Offer your customers a better service and develop your company further strategically.  Clear and individual statistics supply you with all the data you need to lead a successful company.


We take care of the technology, you take care of your company.

With questFON, when switching to VoIP you receive a complete all-round service, from telephony, the Internet connection and the managed network to the telephone sets - all as a one-stop shop.



Make use of questFON international

With questFON you, of course, benefit from our offer of international telephone numbers in over 130 countries.  Because in connection with a SIP trunk, you can include additional locations and extend your capacity according to your wishes.  All call number ranges (such as FreeCall, SharedCall, geographical numbers, PremiumRate) can be forwarded as required via SIP to an employee or a call centre.  You do not need on-site technology for the wide range of routing options, instead you receive everything from us from a single source. 

Find a suitable service call number now for your business!



Visit the questFON website for further information.

Cloud Telephony


Link your VoIP telephone system quickly and easily with our questFON SIP trunk and telephone worldwide at lower rates immediately!

SIP trunking is the easiest way to connect to the public telephone network via an Internet connection.  The call is therefore no longer transmitted via the traditional telephone line as before but via the Internet.  The SIP protocol is responsible for setup and disconnection as well as managing calls between participants in the networks.  The trunk forms the framework around the call ranges that can be scaled up at any time.  The only conditions are an Internet connection and an existing VoIP telephone system.




Who is SIP trunking suitable for?

If you have only recently acquired your VoIP telephone system and do not wish to replace the complete hardware again but would still like to make international telephone calls at low rates.
If you do not want to make additional investments into expensive hardware and sign pages of maintenance contracts.
If you would like to extend your existing telephony with an additional telephone connection.
Trunk users include both small and large companies, there is no restriction.


Your advantages

easy to extend

The technology offers high flexibility and can be integrated into all standard CRM systems.

continuously flexible

The questFON SIP trunk grows with your company. The number of call channels can be adapted easily to your requirements.

reduces costs

You only pay for the actual system usage and save hardware, maintenance and licence costs. 



Owing to redundantly hosted questFON services, you benefit from a high security standard.

Visit the questFON website for further information.

SIP Trunking


The impact of the digital transformation of course also has an influence on marketing.  The boundaries between online and offline customers are blurring.  For suppliers of products and services, it is becoming increasingly complex to reach their target groups successfully and for marketing to analyse customer data better and use it more effectively.  This is where call tracking comes in to build up a uniform analytical system for online and offline advertising.  With call tracking, you can see in real time which marketing measures and which lead generations are proving effective.  You therefore minimise scattering losses and increase the success of advertising activities.  We offer you this success monitoring as a supplement in conjunction with Google AdWords and Google Analytics, of course compliant with the GDPR with servers in Germany. 



Call tracking principally distinguishes between dynamic and static call tracking. In dynamic call tracking, for each user an individual call number is automatically indicated on the homepage or next to the notification in the search results so that each call can be attributed to a user.  Call tracking merges the online statistics data with the call data and contributes valuable information about inbound calls.  Static call tracking is targeted towards the measurability of telephone contacts in connection with campaigns on e.g. social media, advertising panels, in newspapers, mailings or at the POS.  In this case, one telephone number reserved only for this measure is activated.  You receive extended analysis options, specifically under consideration of the effectiveness of implemented advertising measures.  With call tracking, you can use your budget precisely. 



Call tracking shows you ...

  • the success of your campaigns live (calls per advertisement).
  • an optimised evaluation through direct qualification of the calls by your employees.
  • calls resulting from clicks.
  • call behaviour by seeing the time and duration of the calls.
  • the quality and financial value of the calls.
  • etc.



Advantages of call tracking

Keyword optimisation in PPC and SEO

The extended report about your statistics helps you to assess the efficiency of keywords (PPC and SEO) by linking received calls with the keywords. 



Ongoing optimisation of marketing activities

Continuously optimise your advertising measures and exert a direct influence on your call volume at all times. How successful are your newsletter, web adverts and brochures? You can identify the most effective channels.



Assign agents to individual campaigns in a targeted manner

You decide yourself which calls for which advertising measures are forwarded to which employees and therefore ensure an adequate and competent customer service from the outset. 



Maximisation of the Return on Investment (ROI)

Call tracking provides you with important information that is necessary for assessing the costs of a lead. 



Identification of products requiring clarification

Identify which products/services the customer buys directly and for which there are telephone enquiries.





Optimisation of the contents of your website

Track how the customer moves through your website and at what point calls take place (customer journey).





How it functions

The system merges the online statistics data with the call data.  The calls can therefore be attributed to individual users.

Step 1

For each user who visits your website, an individual (slightly modified) call number is indicated.



Step 2

The incoming call on the indicated call number is registered by the call tracking server.  All important information is forwarded by the server to your online statistics.



Step 3

The online statistics allocates the call of the individual session and shows you the most important data such as time, source, duration etc. gathered in Google Analytics and at a glance.



Visit the questFON website for further information.

Call Tracking
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