Keep legacy voice endpoints in service while standardizing on SIP. The AudioCodes MediaPack 5xx MP524/24S/SIP provides 24 FXS voice interfaces via RJ11, giving infrastructure teams a practical path to connect analog phones and other endpoint devices to modern IP telephony environments. This gateway is designed for migration projects where uptime, compatibility, and controlled change matter more than a simple hardware swap. By terminating analog devices on FXS ports and bridging them into SIP-based call flows, it helps preserve existing investments while reducing the operational risk of a wholesale cutover. That makes it a strong fit for campuses, branch offices, and facilities with mixed voice infrastructure. For procurement teams, the value is in extending the life of installed analog assets while aligning voice services with current network architecture. For engineers, the appeal is straightforward: a purpose-built gateway from a vendor known for enterprise voice interoperability. When the requirement is to keep critical analog endpoints reachable during a staged migration, this model gives you a clean, focused answer.