We need a user report that contains Email address and Lync (SIP) address

We need a user report that contains Email address and Lync (SIP) address

I'm trying to create a report that contains the user Email address and the user Lync (SIP) address. I tried to create a custom attribute using the following attribute (msRTCSIP-PrimaryUserAddress) but doesn't work, the results are empty. Any suggestion or idea?

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