Manage contract and customer data

Mobile Communications

You can manage your mobile phone contracts online in the Business Service Portal (BSP). To do so, log in to the Business Service Portal (BSP) with your user name and password. If you do not yet have access, simply fill out our account application form. You will then receive your login details free of charge.

Landline

You can manage your landline contracts online in the customer centre. If you do not yet have access, you can register now free of charge.
Note: Please note that you can configure the technical settings for your cloud telephone system in the Business Service Portal (BSP) for landlines. Register now free of charge!

Mobile telephony

This is how you can change the master data for your administrator access.

1. Log in to the Business Service Portal (BSP) with your user name and password.
2. Click on "Administration & Archive" in the menu at the top right and select "Manage BSP access".
3. You can now change your contact details, password or username.

This is how you can change the master data of your customer accounts.

1. Log in to the Business Service Portal (BSP).
2. In the menu, click on "Existing business" and then on "Change master data".
3. Then select the relevant customer account and scroll down. Now ensure that the correct action, 'Change master data', is selected and click on 'Select'.
4. You can now adjust your details.
5. Then follow the further steps in the portal.

Tip: Register for free if you do not yet have access to the BSP.

Landline and internet

1. Please log in to the customer centre.
2. In the menu under "My Profile", click on "Personal Data".
3. Select the entry you wish to edit and click on the appropriate arrow.
4. Then follow the remaining steps to complete the change.

Note: For more information on moving, please visit our moving help page.

Bank details for mobile phone contracts:

1. Log in to your Business Service Portal (BSP).
2. Click on "Existing business" in the menu and then on "Change invoice details".
3. Select the relevant customer account and enter your new bank details.
4. Follow the further steps in the portal.

Alternatively, you can change your bank details using our contact form.

Bank details for landline and internet contracts:

1. Log in to your customer. Go to the customer centre login.
2. Click on "Personal data" in the menu.
3. Under "Bank details", you can edit your bank details by clicking on the pencil icon.

Alternatively, you can change your bank details using our contact form.

Mobile phone contract/number transfer: Our
contact form includes a PDF document and all the necessary information about the documents we require from you. Please note that both you and your future contract partner must sign the form. Get started now with our contact form!

Transferring landline and internet contracts/phone numbers:
To transfer a contract or phone number, please use our contact form. Once you have selected the appropriate reason for the transfer, a blue note will appear indicating the documentation we require from you.

Note: When a contract or telephone number is transferred, all rights and obligations are transferred to the person or company taking over the contract. For more information, please refer to the Telekom help page on the subject of transfers.

If the name of your company or your own name has changed but your commercial register number or association register number remains unchanged, you can apply for the name change as follows:

For mobile phone contracts:

1. Please use the contact form to change the name on mobile phone contracts.
2. Please note the information regarding what evidence you will need to provide.
3. Fill out the form and send it off.

For landline and internet contracts:

1. Please use the contact form to request a name change for landline and internet contracts.
2. Please note the information regarding what evidence you will need to provide.
3. Fill out the form and send it off.

Important: If your commercial register number or association register number has changed, please refer to the FAQ "How can I transfer a phone number and/or contract?". There you will find all the important information and the appropriate contact form so that our service team can process your request immediately.

Information about changing your mobile phone tariff: 

• You can switch to a higher-value tariff at any time free of charge.
• However, depending on your tariff, additional costs may apply, e.g. if you wish to switch to a cheaper tariff. You will be informed of the exact timing and prices of the tariff change when you place your order.
• After a tariff change, the remaining term of your previous contract applies.
• A change to a tariff with a lower monthly base price can be made at the earliest 18 months after conclusion of the contract or contract extension.

How to request a tariff change quickly and easily online:

1. Log in to your Business Service Portal (BSP).
2. Click on "Existing business" in the menu and then on "Tariff/option change". There you can make the change or book new options.
3. Then first select the desired contract.
4. Follow the further steps in the portal.

Information about changing your landline tariff: 

• You can switch to a higher-value Internet & landline tariff at any time – even before the minimum term of your current contract has expired.
• You can only switch to a cheaper or equivalent tariff at the end of the contract period.

How to request a tariff change quickly and easily online:

1. Log in to the customer centre with your Telekom login details.
2. In the customer centre, you can view your current tariffs and their terms and have the option to request a tariff change directly.
3. Then follow the further steps in the customer centre.

Simply fill out our contact forms for mobile or landline to change your telephone directory entry.

For mobile phones     For landlines