All our plans can be cancelled on a monthly basis.

Plans with a free trial period

Business SIP Trunk

Try our SIP trunk for 30 days with no set-up fee – optionally in combination with the Basic cloud-based telephone system or with your own telephone system and handsets.

With our Business SIP trunk, you have access to features such as call forwarding and simultaneous calls, SIP-DDI and CLIP no screening, as well as an answering machine and many other features.

Curious to find out more? You can find further features and functions of the Business SIP Trunk on our product page.

Following the free trial period, monthly charges will apply in accordance with our price list.

Please note: Calls will be charged according to our price list even during the trial period.

If you’re satisfied, you can customise the service for your business with a range of business add-ons: blocks of phone numbers, Fair-Flat minute packages, the Teams Connector for connecting Microsoft Teams to the public landline network, a cloud-based telephone system with Call Flow Creator, etc.

Whilst you’re here, why not try out the Basic, Classic or Pro cloud-based telephone system?

You can also try out our Basic, Classic or Pro cloud telephone systems. Enjoy all the benefits and features of our hosted PBX free of charge for 30 days.  

You can find the subsequent costs for the Basic, Classic and Pro cloud telephone systems in our relevant price list.

Depending on the version, the cloud telephone system also offers a comprehensive range of features. Further information can be found on our product page.

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Created on: 24. June 2026