Lync Express is an integrated device that provides basic features required in any Lync deployment. The solution includes a Microsoft Windows 2008 Server, Microsoft Lync Server 2010 and Sonoma NetBorder Express VoIP Gateway. Standalone device Lync Express supports up to 100 users is equipped with E1/T1/J1 a compatible digital telephony segment to connect to the public telephone network. Lync Express also supports four FXS lines for any phone or fax number, in case of need or emergency.