The Ribbon EdgeMarc 300 is a low-density analog gateway or analog telephone adaptor (ATA) device that gives small businesses, SOHOs and branch offices with analog voice infrastructures an easy, cost-effective way to capitalize on VoIP services. The EdgeMarc 300 Series offers a survivable branch office solution, providing support for integrating analog endpoints and the Public Switched Telephone Network (PSTN) and support for all Session Initiation Protocol (SIP) calls.

It supports any-to-any connectivity between analog and SIP devices, enabling branch offices to rapidly migrate analog phones onto SIP-based networks and communicate seamlessly with Ribbon session border controllers.  You can choose the EdgeMarc 302 with two FXS ports or the EdgeMarc 304 with four, depending on your needs.