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Plivo Voice Call not ringing

Incorrect call parameters or network issues.

Understanding Plivo Voice API

Plivo Voice API is a powerful tool that enables developers to integrate voice calling capabilities into their applications. It is widely used for creating, receiving, and managing calls programmatically. The API is designed to handle a variety of communication needs, from simple call forwarding to complex IVR systems.

Symptom: Call Not Ringing

One common issue developers encounter is when a call does not ring. This can be frustrating, especially when the application is expected to handle calls seamlessly. The symptom is straightforward: the call is initiated, but the recipient's phone does not ring.

Exploring the Issue

The primary cause of this issue is often incorrect call parameters or network issues. Incorrect parameters might include wrong phone numbers, misconfigured SIP endpoints, or incorrect API credentials. Network issues could involve poor connectivity or firewall restrictions blocking the call.

Incorrect Call Parameters

Ensure that the phone numbers are in the correct format and that the API credentials are valid. Double-check the configuration of SIP endpoints if used.

Network Issues

Verify that there are no network restrictions, such as firewalls, that might be blocking the call. Ensure that the network connection is stable and has sufficient bandwidth.

Steps to Fix the Issue

Follow these steps to resolve the issue:

Step 1: Verify Call Parameters

  • Check the phone numbers for correct formatting. Refer to the Plivo documentation for the correct format.
  • Ensure that the API credentials are correct and have the necessary permissions.
  • If using SIP endpoints, verify their configuration and registration status.

Step 2: Check Network Connectivity

  • Test the network connection to ensure it is stable. Use tools like Speedtest to check bandwidth.
  • Ensure that firewalls or security settings are not blocking the call. Refer to your network administrator if necessary.

Step 3: Monitor API Logs

  • Use Plivo's logging features to monitor API requests and responses. This can help identify any errors in the call setup process.
  • Refer to the call logs documentation for more information.

Conclusion

By carefully verifying call parameters and ensuring network connectivity, most issues with calls not ringing can be resolved. Utilizing Plivo's documentation and support resources can further aid in troubleshooting and resolving such issues effectively.

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