You using an AVM FRITZ!Box?

Then you can start immediately. After ordering one of our tariffs you have the opportunity in the FRITZ!Box to use your connection within a minute. Select at the setup in the FRITZ!Box dus.net as provider and enter your previously obtained login data from us by e-mail  - ready. In the business plan, you can even use the plant connection capabilities


You are using a 3CX PBX?image

We offer in cooperation with the company 3CX our DUStel trunk, which harmonises perfectly with the telephone systems of 3CX. Ported or newly ordered individual numbers or blocks can be freely configured in the system thanks to DDI. The fax reception and sending via T.38 also works perfectly. Information on how to set up the 3CX system can be found here after receiving our access credentials.


digium Asterisk

You are using Asterisk?

The software of the company Digium Asterisk is one of the world's leading open source PBX. Our systems work perfectly together with versions 1.8.x and 11.x. TLS, SRTP, MWI T.38 we are supporting in conjunction with Asterisk systems, only some of the features. More about this in the Help Center after registration. 

Do you own a SNOM Phone?snom 870

Phones of the company SNOM work reliably with our systems. We also support relating to these phone features such as TLS and SRTP encryption, BLF (Busy Lamp Field display, incl. Call-Pickup) or MWI (Message Waiting Indicator) where the mailbox lamp on the phone flashes when a new message arrives and pressing the button takes you directly to the Pin entry to your mailbox. More on the establishment refer to the Help Center after registration.