Keep legacy analog voice services connected as your network evolves. The AudioCodes Mediant 500L M500L-I2S-AGECS is designed for branch and small-office deployments that need dependable SIP gateway functionality without giving up existing fax machines, analog phones, or emergency lines. With 2 FXS voice interfaces and the ability to expand to 4 FXS, this model gives infrastructure teams room to match port count to current demand while preserving a clear upgrade path. The inclusion of 1000Base-T WAN and dual-mode SFP WAN interfaces adds deployment flexibility for environments that need copper today and fiber-ready options tomorrow. This is the kind of gateway that earns its place in a production voice stack: compact, purpose-built, and suited to organizations that need to connect analog endpoints to IP telephony with minimal disruption. For teams standardizing branch communications, the Mediant 500L offers a practical balance of access flexibility and lifecycle protection.