GENBAND 
announced that the SIP Business Trunking softswitch solution offered on its GENBAND C20 Converged Softswitch has achieved interoperability qualification with Microsoft Office Communications Server 2007 R2. Additionally, GENBAND announced that its C20 softswitch is an integral component of the Swisscom SIP Trunking Solution which was recently certified for use with the Microsoft Lync Server 2010.
Swisscom is offering a Microsoft-certified VoIP Gate service for corporate customers.http://www.genband.com
