Preserve existing voice investments while extending them into a SIP environment. The AudioCodes Mediant 800C with 2 E1/T1, 4 FXS, and 4 G is built for organizations that need to connect carrier trunks, analog devices, and IP telephony without forcing a full rip-and-replace. This gateway fits the realities of enterprise voice migration: fax lines, analog phones, paging systems, and PBX interconnects still matter. With 2 E1/T1 interfaces, it can anchor trunk connectivity where circuit-based services remain in place. The 4 FXS ports support analog endpoints that must stay operational during phased transitions or in sites where IP handsets are not practical. For IT teams managing mixed voice estates, the value is control. You can modernize at the pace of the business, maintain service continuity, and reduce dependency on aging telephony infrastructure. The Mediant 800C is a practical choice for branch offices, distributed campuses, and integration projects where voice uptime and interoperability carry real cost. It is the kind of gateway selected when the migration plan has to work on day one, not after a redesign.