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Strange SUBSCRIBEs from UM to Skype RRS feed

  • Question

  • Hi there,

    I was troubleshooting another issue on the Skype Edge server, but during that I found the following:

    [SUBSCRIBE]

    Direction: incoming;source="internal edge";destination="external edge"
    Start-Line: SUBSCRIBE sip:MSExchangeUM@ExchangeSRV1.domain.com SIP/2.0
    FROM: <sip:MSExchangeUM@ExchangeSRV1.domain.com
    TO: <sip:MSExchangeUM@ExchangeSRV1.domain.com>
    CSEQ: 1187 SUBSCRIBE

    [REPLY]

    Direction: outgoing;source="local";destination="internal edge"
    Message-Type: response
    Start-Line: SIP/2.0 404 Not Found
    FROM: <sip:MSExchangeUM@ExchangeSRV1.domain.com
    To: <sip:MSExchangeUM@ExchangeSRV1.domain.com>
    CSEQ: 1187 SUBSCRIBE
    ms-diagnostics: 1008;reason="Unable to resolve DNS SRV record";domain="ExchangeSRV1.domain.com";dns-srv-result="NegativeResult";dns-source="InternalCache";source="SIPAccess.company.com"
    ms-edge-proxy-message-trust: ms-source-type=EdgeProxyGenerated;ms-ep-fqdn=EdgePool.domain.com;ms-source-verified-user=verified

    Does anybody knows why Exchange is doing this? Shall I have somewhere a configuration as the following SIP address looks very strange: MSExchangeUM@ExchangeSRV1.domain.com

    I'm asking this because I do have plenty of Exchange servers are all of them does that as well, so I do have a huge amount of the messages on the Edge.


    Petri

    Thursday, February 8, 2018 11:01 AM

All replies

  • Please elaborate your issue a little further. If you have voicemail that's set with a hybrid configuration, I can see that the messages test would be performed. Once you share more info, we may be able to shed more light into the issue
    Wednesday, April 11, 2018 1:56 AM