VoIP hangup cause rewrite replace refers to a process in which the codes used to indicate the reason for termination of a voice-over IP (VoIP) call is rewritten, mapped, or altered. This can be done to improve the accuracy of the hangup cause codes, to provide more specific information about why a call was terminated, or to comply with specific regulatory requirements.

In VoIP systems, it is common for different components of the system to generate different codes for the same reason for call termination. The VoIP hangup cause rewrite replaces process helps to ensure consistency across the system by converting or replacing these codes with a standardized set of codes.

The codes used in this process are typically based on the ITU-T Q.850 standard and are used by different VoIP systems to communicate the reason for call termination. The rewrite process may involve mapping a range of codes to a single standardized code or mapping different codes to a more specific code.

and the most common ones include below:

Most Common SIP Hangup Cause

• Normal Call Clearing (200) or (16)
• User Busy (486) or (17)
• No Answer (408) (18)
• Declined (603)
• Call Rejected (603)
• Not Found (404)
• Request Terminated (487)
• Not Acceptable (488)
• Unsupported Media Type (415)
• Session Timer Expired (486)
• Forbidden (403)
• Payment Required (402)
• Bad Gateway (502)
• Request Timeout (408)
• Service Unavailable (503)
• Internal Server Error (500)

These codes are usually used by VoIP service providers to diagnose call quality issues, as well as for billing and call routing purposes.

VOS3000 Softswitch is a popular VoIP (Voice over IP) platform that is used for managing wholesale and retail voice services. In VOS3000, the hangup cause rewrite refers to the process of converting or altering the codes used to indicate the reason for the termination of a VoIP call.

This process helps to ensure consistency in the codes used by different components of the VOS3000 system, by mapping a range of codes to a single standardized code or mapping different codes to a more specific code. The codes used in the hangup cause rewrite process are typically based on the ITU-T Q.850 standard and are used to communicate the reason for call termination in a standardized manner.

By using the hangup cause rewrite process, VOS3000 can provide more accurate and specific information about why a call was terminated, beyond just stating that it was disconnected. This information can be useful for troubleshooting, analyzing call data, and billing purposes.

You can change the VOS3000 Softswitch hangup caused by following the below screenshots method, for more information contact us by Clicking Here.