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Help & Service for business customers

Mobile devices and configurations

Two hands hold a mobile phone with its display visible.

How can we help you?

Mobile phone

Activate, deactivate and listen to your voicemail

More about the mobile mailbox

SIM/eSIM

SIM and eSIM, activate, lock, unlock

More about SIM

Further related topics

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A woman is sitting at her desk and has connected her mobile phone to a router.

Router settings

Our videos, downloads and operating instructions will help you configure your router according to your preferences.

More about router settings
Three buildings at different distances, connected via a cloud and communicating with each other.

CompanyFlex

We are happy to help you configure your router and telephone systems for Cloud PBX and SIP trunking.

More about configuring CompanyFlex
Three people are at a train station. One person is working on a laptop with a cloud icon.

GermanyLAN CloudPBX

We would be happy to explain how to set up your Cloud PBX and the associated devices.

More about configuring your Cloud PBX

How to reach us

Contact form

To send us an email, simply use our contact forms.

Contact forms

Chat

The chat service is available Monday to Friday from 8 a.m. to 8 p.m.

Chat

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