Outbound calls fail in 3CX
Calls to outside numbers don't connect or get a busy tone.

| What you need | Affects |
|---|---|
| Admin access to the 3CX Admin Console | Calls to outside numbers |
1. Check 3CX
- Check the trunkMake sure the trunk shows as registered (green) on the dashboard.
- Check the outbound rulesOpen Outbound Rules and make sure a rule matches the number you dialled, for example numbers starting with 0.
- Check caller IDCheck the caller ID the rule sends is one your provider allows.
2. Find the reason
- Look at the callCheck Call History or the logs for the error your provider sent back.
- Ask your providerGive them the time of the call and the error.
Troubleshooting
| Problem | Likely cause and fix |
|---|---|
| Some numbers work, others don't | Add a rule for the number type that fails, such as mobiles or 13 numbers. |
| All calls fail | The trunk is down, or the account has run out of credit. |