How can I protect myself against storm damage?

Prevention is the best protection. Here's how to be well prepared: Install surge protection : Use certified surge protection devices both centrally in the main distribution board or meter cabinet and in power strips with protective functions. Switch off devices in case of danger : If no protection system is available, disconnect all important devices, e.g. routers, IP telephones, servers or smart controls, from the power and data network. Ensure protection against flooding : Do not place your equipment in vulnerable basement rooms. Check cable entries and seals. Prepare backup power supply : Have an uninterruptible power supply ready to prevent data loss and system crashes. Create an emergency plan : Define internal responsibilities and checklists for emergencies.

How can I remain contactable during a storm?

Even during severe weather, your connection will usually continue to function without restrictions. Disruptions only occur in rare cases. To ensure that your business remains accessible even in the event of a weather-related disruption, here are some tips and options: Act ivate call forwarding In the telephony centre : Select phone number → Availability → Offline call acceptance → Enter destination phone number or voice mailbox . In the voicemail app : Settings → Select phone number → Activate call forwarding when unavailable → Select forwarding destination. Utilise alternative communication channels: Set up mobile devices or cloud telephony as a backup in advance. Ensure centralised information channels: Ensure that all employees are aware of the emergency communication plan.

What should I do if my router or other network devices stop working?

If your appliances no longer work after a storm, they may not necessarily be faulty. Proceed as follows to check: Perform a restart . Disconnect all devices from the power supply for at least 2 minutes. Then switch them back on in the following order: first the router, then the switch/distributor/server, if applicable, and finally end devices such as telephones, PCs or smart home devices. Check the network . Check whether other devices such as switches, access points or firewalls are affected. Surge damage can affect multiple devices. Start diagnosisUse the line test or contact us for a fault analysis. Re place device Rental device – Request replacement directly via our business customer service . Owned device – Have the fault checked by a qualified electrician. In the event of storm damage, contact your insurance company if necessary. For a new device, please contact our service department directly by telephone on 0800 33 01300 .

Help & Service for business customers

Safe in all weather conditions – for your business

Extreme weather events such as thunderstorms, power surges and flooding can severely disrupt your business communications and IT infrastructure. Here you can find out how to prevent such incidents, remain operational in an emergency and resolve disruptions efficiently.

House in stormy weather with lightning and a barge above it

Storm protection in business: everything you need to know

Prevention is the best protection. Here's how to be well prepared:

Install surge protection: Use certified surge protection devices both centrally in the main distribution board or meter cabinet and in power strips with protective functions.
Switch off devices in case of danger: If no protection system is available, disconnect all important devices, e.g. routers, IP telephones, servers or smart controls, from the power and data network.
Ensure protection against flooding: Do not place your equipment in vulnerable basement rooms. Check cable entries and seals.
Prepare backup power supply: Have an uninterruptible power supply ready to prevent data loss and system crashes.
Create an emergency plan: Define internal responsibilities and checklists for emergencies.

Even during severe weather, your connection will usually continue to function without restrictions. Disruptions only occur in rare cases. To ensure that your business remains accessible even in the event of a weather-related disruption, here are some tips and options:

Activate call forwarding
In the telephony centre: Select phone number → Availability → Offline call acceptance → Enter destination phone number or voice mailbox.
In the voicemail app: Settings → Select phone number → Activate call forwarding when unavailable → Select forwarding destination.
Utilise alternative communication channels: Set up mobile devices or cloud telephony as a backup in advance.
Ensure centralised information channels: Ensure that all employees are aware of the emergency communication plan.

If your appliances no longer work after a storm, they may not necessarily be faulty. Proceed as follows to check:

Perform a restart
. Disconnect all devices from the power supply for at least 2 minutes. Then switch them back on in the following order: first the router, then the switch/distributor/server, if applicable, and finally end devices such as telephones, PCs or smart home devices.
Check the network
. Check whether other devices such as switches, access points or firewalls are affected. Surge damage can affect multiple devices.
Start
diagnosisUse the line test or contact us for a fault analysis.
Replace
device Rental device – Request replacement directly via our business customer service.
Owned device – Have the fault checked by a qualified electrician. In the event of storm damage, contact your insurance company if necessary. For a new device, please contact our service department directly by telephone on 0800 33 01300.