MarketScope for Enterprise Instant Messaging and Presence:

Microsoft Lync is the latest version of Microsoft’s UC product, which includes IM and presence capabilities. Rating: Strong positive.

Gartner’s latest enterprise IM/presence analysis accurately reflects the state of the market – Lync with the only strong positive rating. Check it out :) If you’re looking for a partner to POC or impliment Lync (especially as a PABX replacement/addition), Ensyst in Australia is your partner of choice.