Analog VoIP Gateway AUDIOCODES MediaPack 524 MP524/24S/SIP/D-SUB — 24 FXS ports, SIP

The AUDIOCODES MediaPack 524 (MP524/24S/SIP/D-SUB) is an analog VoIP gateway that provides 24 FXS ports and SIP protocol support for connecting legacy analog telephones, fax machines or PBX extensions to IP networks. Intended for voice migration and PSTN replacement projects, this gateway offers interoperability with SIP-based IP-PBXs and SIP trunks, enabling call routing, media conversion and session control while keeping existing analog equipment in service.

Advantages

The MediaPack 524 consolidates 24 analog interfaces in a single rack-mountable unit, reducing the need for multiple adapters and simplifying wiring. It supports standard SIP signaling and common voice codecs, allowing straightforward integration with IP telephony environments. Built for service continuity, the device preserves investments in analog handsets and fax devices while enabling centralized call routing and management. Its D‑SUB connector provides a compact cabling option for installations with high port density.

Suitable for

• Enterprises migrating legacy PBX extensions to IP telephony
• Call centers that need to connect analog phones or operator consoles to an IP-PBX
• Service providers offering SIP trunking or managed voice services to customers with analog equipment
• Small and medium offices requiring multiple FXS ports for analog devices or fax lines

When it may not be suitable

This gateway is focused on analog-to-IP voice connectivity and does not provide VoIP handset features, Wi‑Fi, or DECT base station functions. If your deployment requires native digital PBX interfaces, integrated PSTN lines with FXO ports, or built-in application servers for advanced unified communications, a different model or additional equipment may be required.

Key specifications

• Number of FXS interfaces: 24
• SIP signaling support for registration and trunking
• Physical interface: D‑SUB multi‑pin connector for analog ports
• Form factor: rack-mountable chassis suitable for telecom racks
• Supported voice codecs: common narrowband codecs (e.g., G.711, G.726) and transcoding capability when configured in the IP domain
• Call control features: SIP call routing, SIP proxy/registrar interoperability, and basic voice services for migration scenarios

How to use

Install the MediaPack 524 in a standard rack and connect the analog handsets or PBX extension wiring to the D‑SUB interface using appropriate breakout cabling. Configure network and SIP parameters through the device management interface or central provisioning system to register with your IP‑PBX or SIP trunk provider. Map analog ports to SIP extensions or routing rules, adjust codec and fax settings as needed, and perform test calls to verify audio quality and signaling interoperability.

What to consider before purchase

• Ensure compatibility of your IP‑PBX or SIP trunk with standard SIP signaling and the gateway's codec set
• Plan cabling and breakout adapters for the D‑SUB connector to match your existing analog wiring
• Confirm power and rack space requirements for a 24‑port rack‑mount unit
• Verify if additional devices (e.g., media servers, SBCs) are needed for security, NAT traversal or advanced call routing

Usage recommendations

Use the MediaPack 524 for phased voice migrations: deploy it to bridge analog equipment during IP rollout, register ports individually to your IP‑PBX, and monitor call quality. Keep firmware updated and apply QoS policies on your network to ensure consistent voice performance. For high-density installations, document port mappings and label breakout cables to simplify maintenance.