How can I extend my mobile phone contract?

In the Business Service Portal , you can easily extend your mobile phone contract. When extending your contract, you also have the option of switching to a contract with a smartphone.

How do I extend my data plan?

Just like your mobile phone tariff, you can change your data tariff in the Business Service Portal . When you extend your contract, you have the option of switching to a tariff that includes a tablet.

As a business customer, which products can I order from Telekom?

Our business customer portal offers comprehensive information on mobile communications and mobile solutions. We have offers tailored specifically to the business customer sector, including mobile phone tariffs with smartphones, data tariffs with tablets, mobile routers and additional cards . We can provide you with tailor-made mobile solutions for your business.

Mobile Communications

Offers for existing customers

Are you already a customer of ours? Here you will find lots of relevant information, offers and more.

Existing customer looks at his smartphone with a smile

Have you received an email about the switch to the new e-invoice system?

Take action now and complete the transition.

Over the course of 2026, Telekom will gradually switch its business customers to the legally required e-invoicing system, thereby supporting machine-readable formats such as XRechnung and ZUGFeRD, and making invoices available centrally via its online customer portal.

This ensures that your invoicing process will continue to run smoothly, securely and paperlessly in the future.

Enter your email address now

Your advantages as an existing customer

Exclusive offers

As an existing Telekom customer, you can benefit from exclusive offers such as MagentaEINS Business or discounts on additional cards.

Keep track of things

If you are already a Telekom customer, you can view and manage all your contracts centrally and easily. You can also flexibly add new contracts or products.

We reward your loyalty

Landline & mobile phone combination package
Get MagentaEINS UNLIMITED mobile and landline including internet – in a combination package starting at just €63 per month.
Discover the combo package
MyMagenta app
Mobile and landline in one app. Mobile contract management for business customers.
Discover the MeinMagenta app

Telekom logins for business customers

Mobile Communications

Contract extension
Equipment and accessories
Manage data volume

TelekomCLOUD Marketplace

Licences and subscriptions
Invoice documents
Overview of licences

Landline

Invoice
Telephony settings
Equipment and accessories

CLOUD PBX / CompanyFlex

Cloud settings
Manage workstations
Book special services

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Get live advice now

Would you like to receive advice or place your order with us in person?
We would be delighted to assist you. Start a chat with our online advisory service quickly and easily.

To the live chat

Offers for existing customers

Combining is worthwhile

Have you received an email about the switch to the new e-invoice system?

Your advantages as an existing customer

Exclusive offers

Keep track of things

We reward your loyalty

Landline & mobile phone combination package

MyMagenta app

Telekom logins for business customers

Mobile Communications

TelekomCLOUD Marketplace

Landline

CLOUD PBX / CompanyFlex

Get live advice now

Frequently asked questions

How can I extend my mobile phone contract?

How do I extend my data plan?

As a business customer, which products can I order from Telekom?

How to contact us

Telephone contact

Contact form

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