About SIP address substitution failures
By default, Lync Connector attempts to substitute SIP addresses with email addresses in the extracted Lync transcripts. Lync Connector performs an Active Directory lookup of the SIP address to find the associated email address.
In some cases the Active Directory lookup may find that no user is associated with the SIP address, or that no primary email address is listed for the SIP address. For example in a federated environment the lookup for all external users fails. For internal users the lookup can fail if the SIP address has changed, or if the user has left the company and their Active Directory user object has been deleted.
If Lync Connector fails to find the email address for a SIP address it retains the SIP address in the transcript. In cases where company policy is to use identical SIP addresses and email addresses, this fall-back option should result in the transcript being routed to the user's archive. However, if the SIP address is different from the email address, the transcript is unlikely to be routed correctly.
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