Microsoft Lync 2013 Unified Communications: From Telephony to Real-Time Communication in the Digital AgeEbookMicrosoft Lync 2013 Unified Communications: From Telephony to Real-Time Communication in the Digital AgebyDaniel Jonathan ValikRating: 5 out of 5 stars5/5Save Microsoft Lync 2013 Unified Communications: From Telephony to Real-Time Communication in the Digital Age for later