600 Error Codes,  Global Failure

Version 1

    Details

    Global Failures SIP Error Codes,  600 Error Codes


    Resolution

     

    600 Busy Everywhere

        All possible destinations are busy. Unlike the 486 response, this response indicates the destination knows there are no alternative destinations (such as a voicemail server) able to accept the call.

    603 Decline

        The destination does not wish to participate in the call, or cannot do so, and additionally the destination knows there are no alternative destinations (such as a voicemail server) willing to accept the call.

    604 Does Not Exist Anywhere

        The server has authoritative information that the requested user does not exist anywhere.

    606 Not Acceptable

        The user's agent was contacted successfully but some aspects of the session description such as the requested media, bandwidth, or addressing style were not acceptable.