Our Customers FAQs

Here are some of our most commonly asked questions and queries from our customers as well as our quick solutions to save you time and get you back up and running in no time!

3CX Webclient – IP Has been blacklisted , what should I do now?

This happens when multiple login attempts have failed, please go to What Is My IP Address – See Your Public Address – IPv4 & IPv6 and send your IPv4 address to [email protected] to have this whitelisted.

3CX webclient error – WebRTC line is not registered, how can I fix this?

This error message can appear on the web client when the browser has disconnected from the client.

This can be resolved by right clicking the blue 3cx phone icon on the top right of the screen and selecting ‘Reload extension’

How can I download the 3CX mobile application?

You can download the 3cx application from the Apple app store or Google Play store by searching ‘3cx’, once downloaded you can then open the application and select the three lines on the top left of your screen, select ‘Accounts’ – ‘Add’ and then scan the QR code that you would’ve received on your 3cx welcome email. 

If you are yet to receive your 3cx welcome email, please email support at or call us on 01252241000

My phone says obtaining IP address, what next?

This means the phone has no internet, so there is likely an issue with the port/ switch phone is connected to.

Please try plugging the phone in to the same port of a phone that is currently working, if this works there is an issue with the port.

If this doesn’t work, please try using a different cable.

Is your issue not one of the above or do you need more support? Get Intouch today. Speak to one of our expert agents who will help you with any technical support 24/7. 


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