9 Appendix D: Client Display of Received Diagnostic Codes for Releases subsequent to Lync 2010

This section applies to Microsoft Lync 2010, Microsoft Lync Client 2013/Skype for Business, Microsoft Skype for Business 2016, and Microsoft Skype for Business 2019.

Disclaimer: The following information is being provided to help the reader understand the SIP protocol client experience based on SIP server responses. This information is provided "as-is" and might become outdated or change over time. It is not intended to be a guide on how to implement a SIP protocol client, nor does it provide all information for what the SIP protocol client does in response to SIP server codes. It attempts to provide a view into related behavior regarding error codes, given the context of this document.

Following is a list of error strings that are displayed in the protocol client products listed in section 11 for many error IDs. A list of all error IDs is defined in section 7. The strings are grouped into the respective modes that a user can be participating in when the client receives the error.