Communication solutions

We like to put your wishes into around modern communications - e-Maill, fax, SMS and conference call.  Please find enclosed our current further products - as well as special solutions realized by our development team for you. Talk to us about it!


The annoying typing on the cell phone is a thing of the past! Send your SMS easily and without installations directly from the PC.


Faxing without a fax machine? It's easy, secure, no basic fees and via the Internet. You control your entire fax communication directly from your PC... we take care of the rest!


We receive all your faxes for you via your exclusive fax reception number - this avoids busy situations even during busy periods.


Conference calls, web conferences, webinars and web presentations...all easily bookable without a monthly package!

Voucher shipping

Invoices, reminders or confirmations are delivered securely by fax or e-mail, saving time and money.

Fax on demand

Whether it's price lists or order forms, fax-on-demand lets you retrieve your documents from your fax machine from anywhere.

Alerting service

Send important information immediately and specifically by e-mail, by fax and/or by SMS with the GTC alerting service: you will be heard immediately.

Martina Assenmacher

Ingram Micro Pan Europe GmbH

"The sending of our newsletter takes only a few minutes – nevertheless it is handled in a very professional way. We are not in need of additional software and do not have to enter a long term commitment. That’s how we stay flexible. Furthermore we really appreciate the support of the attentive GTC-employees."


Uwe Streb

Festina Uhren GmbH

"The customer service gave us great advice. Now we are getting much more out of our actions, can make campaign comparisons and achieve exactly what we want."


Jürgen Klein


"GTC is our long-standing partner for sms and e-mail boradcasting and is very reliable. Thumbs up."


Bettina Holz

X-PERION Consulting AG

"Our employees are on the road throughout Germany, partly even in Europe. A regular coordination is essential here. We are completely independent with GTC central meeting: all participants are dialing themselves in via telephone. It doesn’t matter, where the participants are. Even the dial-up from abroad happens at low costs, due to international access numbers."


Edgar Augel

Stadtmobil carsharing AG

"E-mailings created with the template editor look great. In addition, our mailings now always adapt to the size of the receivers with responsive design. Fantastic."


Roland M. Rupp

Schweizerischer KMU Verband

"The service at GTC leaves nothing to be desired. Also the simple operation, the evaluation and the multilingual menu is great."


Christof Korr

CreditPlus Bank AG

"An sms will not be overlooked. Therefore, sms-mailing is our choice when it matters. With GTC, we have found a professional, with which everything runs great. And what is especially important to us is that all data remain in Germany."

Among our satisfied customers
Datev grossKlett-Cotta großBosch großCewe colorDHL großFestinaAachen Münchener großCosAG großDeguDent großLawinen-Warndienst Bayern großSVS großWeka großIngram großIvacare Aquatec großAmnesty International großDer deutsche Wirtschaftsbrief großX-perion groß
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