When placing calls from the Aircall app, you may occasionally be unable to connect to a number. Several factors can prevent outbound calls from going through. This article outlines the most common causes and how to resolve them.

Connection or network issues

If you have network problems, you may see an orange banner on the app or notice that some options appear greyed out. A stable internet connection is essential for successful outbound calls.

Steps to troubleshoot:

  • Verify that you have a reliable internet connection.

  • Review Aircall’s network requirements to ensure your setup is correctly configured.

  • Check whether your device or headset may be affecting your call quality.

For more details, please visit the Network Requirements and Recommendations article. For recommended equipment, please see Device and Headset Recommendations.

Dialing non Aircall compatible numbers

Short numbers with only 4 to 6 digits are not supported for most customers due to system limitations. These numbers include services like 3631 (La Poste) or promotional codes often used in marketing campaigns.

To learn more, please review Dialing Emergency or Short Numbers.

Calling to China

Aircall cannot support outbound calls using Chinese numbers. These numbers can only be used for inbound calls. For more information about call restrictions, please visit Calling restrictions by country.

Calling a country not included in your plan

Some outbound calls may fail because the destination country is not included in your plan. In such cases, you will not be able to complete the call.

For more information, please visit This number is blocked when calling overseas.

Call limitations for trial accounts

If you are using a trial account, certain restrictions apply that may prevent outbound calls from connecting. To learn more, please visit our articles under Trial Experience.

“This number is unreachable” message on all calls

This message can appear for several reasons, including plan limitations, trial restrictions, or connection issues. For more information, please see our article This number is unreachable - message on all calls.

Tip: If issues persist after checking all factors, try placing a call from a different network or device to help isolate the problem.