Is a phone number required in the legal notice?

Brief overview

Many companies ask themselves: Is it mandatory to include a phone number in the legal notice?
The clear answer is:

No—but in practice, it is highly recommended.

Legal Framework

The legal requirement to provide an imprint stems from Section 5 of the Digital Services Act (DDG) (formerly the Telemedia Act – TMG). According to this provision, service providers must make certain information available in a manner that is“easily recognizable, directly accessible, and permanently available,including:

  • Name and address
  • Information on how to contact us quickly via electronic means and communicate directly

That last point, in particular, is crucial when it comes to the phone number.

Case Law: No Requirement to Provide a Phone Number

The European Court of Justice (ECJ) (Judgment of the ECJ of October 16, 2008 (C-298/07)) has ruled:
A telephone number is not strictly necessary if other means of communication allow for quick and direct contact.

Specifically, this entails:

  • Email is required
  • In addition, another communication channel must be available
  • Alternative methods of contact are permitted only if they are equivalent to traditional means of communication (e.g., telephone).

What is sufficient instead?

Examples of acceptable items include:

  • Contact Form (with prompt response)
  • Live Chat
  • Recall system

Important:
Communication must truly be “direct”—purely formal solutions are not sufficient.

Practical risks without a phone number

Although there is no legal obligation, there are clear disadvantages:

  • Risk of receiving a warning letter if contact methods are deemed insufficient
  • Problems with proving reaction rates
  • Loss of customer trust, as customers often expect to be provided with a phone number

Recommendation from real-world experience

For businesses, the legally compliant standard applies, and it is as follows:

  • Email address
  • Telephone number
  • and additionally, optionally: contact form

should be included in the legal notice. This minimizes legal risks while also boosting trust and conversion rates.

Conclusion

  • A phone number is not required by law
  • Alternative solutions carry legal risks
  • For this reason, including a phone number in the legal notice is highly recommended in practice

As a specialist attorney in IT law and intellectual property law, I assist companies with, among other things, ensuring that their online presence and online stores are legally compliant—before any risks arise.