Maintain analog voice services without delaying your IP telephony roadmap. The AudioCodes MediaPack 5xx MP504/4S/SIP/TAA bridges 4 FXS endpoints into SIP-based communications, giving infrastructure teams a practical way to preserve legacy devices while standardizing the core network. It is a strong fit for branch offices, regulated environments, and phased migrations where uptime matters more than replacing every endpoint at once. TAA compliance makes this model appropriate for procurement paths that require sourcing discipline and documented product origin. That matters when the gateway is part of a larger public-sector, healthcare, or enterprise refresh where compliance is as important as call continuity. With four analog voice interfaces, the unit supports a focused deployment footprint without adding unnecessary complexity. For teams comparing lower-cost adapters, the value here is control: a purpose-built gateway from a vendor known for voice interoperability, designed to sit between analog devices and SIP infrastructure with minimal disruption. Use it to extend the life of critical analog assets while keeping your migration plan on schedule.