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8x8 Support

Why are local calls failing in 8x8 Work for Desktop?


To determine why when an extension is dialing a local number, the call is failing with a fast busy signal or Call Failed message in Work for Desktop, or even with no error message.

Applies To

  • Work for Desktop
  • Call Failure


Initial Troubleshooting

  • Try dialing it from an offnet (non 8x8) phone network, in order to verify if the dialed number is a valid number.

Check Extension Provisioning

In Account Manager

  1. Navigate to Home > Phone System > Calling Options and locate the extension. 
  2. Under the Calling Option ensure that the correct Outbound Calling Country is selected.
  3. Under Outbound Calling Options ensure that the option selected is either Domestic or International.
    • If the issue persists under Outbound Calling Options the option selected is either try changing the option Domestic.
    • Set International to a different value, save it and then change it to the correct value and save again the setting.

In 8x8 Admin Console

  1. Navigate to Home > Users > Edit.
  2. Click Edit for the extension you would like to verify.
  3. Under External calling permission, check Calling Country to be correct.
  4. Check that the External calling plan is set either to International or with Domestic.
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