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Application: Microsoft Skype for Business

Microsoft Skype for Business--formerly known as Microsoft Lync, and Microsoft Office Communicator before that--is the Instant Messaging, Presence, and Voice Call service from Microsoft. The network traffic looks very different from Microsoft Skype, but eventually the two may merge. This application uses SIP-TLS, and LDAPS over TCP ports 5060-5062.

  Microsoft Skype for Business -- HTTP Activity (Lync)
  Microsoft Skype for Business -- HTTPS Activity (Outbound) 1
  Microsoft Skype for Business -- UDP Activity 1
  Microsoft Skype for Business -- UDP Activity 2
  Microsoft Skype for Business -- HTTPS Activity (Lync Outbound)
  Microsoft Skype for Business -- UDP Activity 3
  Microsoft Skype for Business -- HTTPS Activity (Outbound) 2
  Microsoft Skype for Business -- UDP Activity 4
  Microsoft Skype for Business -- HTTPS Activity (Lync Inbound)
  Microsoft Skype for Business -- HTTPS Activity (Inbound) 1
  Microsoft Skype for Business -- HTTPS Activity (Inbound) 2
  Microsoft Skype for Business -- HTTPS Activity (Inbound) 3
  Microsoft Skype for Business -- App Feature (Voice Call)


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