The Sonus Tenor Series switching/gateway solutions are deployed worldwide to provide highly reliable, easy-to-implement VoIP connectivity in a full range of enterprise and service provider environments. These highly adaptable solutions work with traditional PBXs, legacy analog equipment, IP PBXs and IP phones, and SIP-based communications environments. They are perfect for deploying VoIP in small enterprises, SOHO or remote offices of larger enterprises, where analog and modem-based devices are common.