Protect voice availability while modernizing telephony with the AudioCodes Mediant 800C. This SIP gateway is designed for environments that still depend on E1/T1 trunks and analog endpoints but need a controlled path to IP-based communications. With 4 E1/T1 interfaces, 4 FXS ports, and 4 G support, it gives infrastructure teams the connectivity needed to keep legacy services running while migration work progresses. Compared with smaller gateway configurations, this model offers an additional E1/T1 interface for sites with more trunk demand or tighter consolidation goals. That extra capacity can matter in branch offices, regional hubs, and enterprise locations where voice traffic must be maintained during phased cutovers. It also helps reduce the need for multiple devices, simplifying rack planning and operational oversight. For architects, the Mediant 800C provides a practical interconnect point between PBX systems, carrier services, and SIP platforms. For procurement teams, it represents a focused investment in continuity: enough interface density to support real migration work, without paying for unnecessary complexity. The result is a gateway built for dependable transition, not just basic connectivity.