JRX7
04/07/2025, 7:36 PMVapi Support Bot
04/07/2025, 7:37 PM/phone-numbers
endpoint
- Alternatively, import your own number from Twilio using the dashboard or the /phone-numbers/import
endpoint
3. Make the Call - Use the /call/phone
endpoint to initiate the call, setting your assistant as the dialer and specifying the destination phone number
## Common Issues & Troubleshooting
If you're experiencing problems, here are some common issues and solutions:
### Account and Number Limitations
- Vapi's free phone numbers can only call US numbers
- There's typically a limit of 10 outbound calls per day with Vapi numbers
- Check if you've reached your concurrency limit for simultaneous calls
### Configuration Issues
- Ensure your API key is correct in all requests
- If using Twilio numbers, verify your Twilio account has the necessary permissions and is in good standing
- Check that your Twilio credentials (Account SID and Auth Token) are correct
### SIP Trunk Configuration
- If using SIP trunking, ensure the SIP trunk is correctly configured with the proper Credential ID, IP/Port, and Authentication details
- Verify that SIP Register is enabled with the correct Domain and Realm
### Geographic RestrictionsVapi Support Bot
04/07/2025, 7:37 PMKings_big💫
04/07/2025, 7:55 PMSahil
04/07/2025, 10:40 PM