The SIPResponseMetaDataTable contains a list of SIP response codes and the classification and definition of each of those codes. These codes are generated in response to events affecting SIP devices and SIP communication sessions; for example, the response code 403 is generated when a SIP device makes a request, but the server declines to honor that request.
This table was introduced in Skype for Business Server 2015.
||Numeric value that represents the SIP response code.
||General classification for the response code. Classifications include:
1 - Informational Responses
2 - Successful Responses
3 - Redirection Responses
4 - Client Failure Responses
5 -- Server Failure Responses
6 - Global Failure Response
||Description of the SIP response code. For example, response code 181 has the following description:
Call Is Being Forwarded