In the Stiegeler customer portal you can find all the details of your landline and mobile phone contract at a glance. The customer portal is available to you from the moment you receive the order confirmation and shows you the status of your order at any time. After connecting, you can view the contract details as well as your invoices and make various settings relating to telephony and personal data or billing settings. Other services such as B. applying for a move with just a few clicks are also included in the app.