If you’re involved in SIP networks, you may have encountered SIP-487 Request Terminated errors. This error code is a SIP response code that indicates the call requested by the user cannot be processed. Understanding the cause of this error and how to resolve it can be critical in maintaining a reliable SIP network.
So, what exactly is SIP-487 Request Terminated? The error code indicates that the called party could not be reached or refused the call for some reason. It can occur due to various factors, including network congestion, codec mismatch, or insufficient resources.
In this article, we will explore the intricacies of SIP-487 Request Terminated errors in detail, including their causes and how to troubleshoot and fix them effectively. We will analyze the call flow associated with this error code and discuss best practices for proper SIP call termination.
- SIP-487 Request Terminated errors indicate that the called party could not be reached or refused the call.
- The error code can occur due to network congestion, codec mismatch, or insufficient resources.
- Understanding the cause of this error and how to troubleshoot and fix it can be critical in maintaining a reliable SIP network.
- We will explore the intricacies of SIP-487 Request Terminated errors in detail in this article.
- Proper SIP call termination techniques can help prevent encountering SIP-487 Request Terminated errors.
Understanding SIP Error Codes
As we have briefly mentioned in the previous section, SIP-487 is just one of many SIP error codes. Understanding common SIP errors is crucial for effectively troubleshooting and resolving any issues that may arise during SIP calls.
SIP error codes are three-digit numbers that indicate the status of a SIP request. They are divided into six categories, each denoting a specific type of status:
| CATEGORY | DESCRIPTION |
|---|---|
| 1xx | Informational |
| 2xx | Success |
| 3xx | Redirection |
| 4xx | Client Error |
| 5xx | Server Error |
| 6xx | Global Failure |
Common SIP errors include 401 Unauthorized, 404 Not Found, and 503 Service Unavailable. SIP-487 Request Terminated, which is a response code that falls under the 4xx category, occurs when a SIP request is cancelled,