4500 Series - The EdgeMarc 4500 Series Enterprise Session Border Controller combines multiple voice and data features into a single, easy to use network services gateway. It includes models that have up to 4 T1/E1 WAN interfaces, a single ethernet WAN, a 4 port managed VLAN switch, call quality probe optional 802.11 Wireless Access Point and optional integrated analog phone and line ports. Designed for SOHO and small to medium enterprise deployment the 4500 Series contains models that support 2, 5, 10 or 30 concurrent WAN VoIP calls.