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Bandwidth is a leading provider of Voice/Calls Communication APIs, enabling developers to integrate voice calling capabilities into their applications. These APIs are essential for businesses that require reliable and scalable communication solutions.
When using Bandwidth's API, you might encounter the error code SIP 480 Temporarily Unavailable. This error indicates that the called party is currently unable to receive the call.
The SIP 480 Temporarily Unavailable error is a standard SIP response code. It suggests that the recipient's endpoint is temporarily unreachable. This could be due to various reasons such as network congestion, the recipient's device being turned off, or the recipient being in an area with no coverage.
To address the SIP 480 error, follow these actionable steps:
Ensure that the recipient's device is powered on and within network coverage. You can try contacting the recipient through alternative means to confirm their availability.
Implement a retry mechanism in your application to attempt the call again after a short delay. This can often resolve transient issues. For example, you can use a simple loop with a delay:
for (int i = 0; i < 3; i++) {
// Attempt the call
if (callSuccessful()) {
break;
}
// Wait for 30 seconds before retrying
Thread.sleep(30000);
}
Ensure that your network connection is stable and that there are no disruptions affecting the call. You can use network diagnostic tools to check connectivity.
For more information on handling SIP errors, you can refer to the following resources:
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