Analog VoIP Gateway AUDIOCODES MediaPack 516 MP516/16S/SIP — 16 FXS (RJ11), 1 GbE, 1U rackmount

The AUDIOCODES MediaPack 516 MP516/16S/SIP is an analog VoIP gateway designed to bridge traditional analog telephony with SIP-based IP networks. The unit provides sixteen FXS RJ11 ports for direct connection of analog phones or analog PBX extensions, a single Gigabit Ethernet port for SIP signaling and media, and a 1U rackmount form factor suitable for server room or equipment cabinet installation. The device supports protocol conversion and call routing functions to assist businesses migrating to IP telephony while retaining existing analog endpoints.

Advantages

The MediaPack 516 consolidates multiple analog lines into a single SIP-enabled network connection, reducing the need to replace all existing handsets when moving to VoIP. Its sixteen FXS ports allow multiple analog endpoints to remain in service and the 1 GbE interface supports standard network integration. The 1U rackmount size makes the unit compatible with common rack deployments, providing a compact footprint for branch offices or small data closets.

Suitable for

• Small and medium businesses migrating from analog PBX to SIP-based telephony.
• Branch offices requiring continued use of analog phones or fax machines while connecting to a central IP telephony system.
• Environments where a compact 1U rackmount gateway is preferred for equipment consolidation.

When it may not be suitable

The MediaPack 516 is focused on analog-to-SIP conversion and is not a full-featured IP PBX; organizations that require advanced PBX features or native digital/ISDN interfaces may need a different product. If a deployment requires multiple separate Ethernet interfaces, redundant network ports, or a higher density of analog ports than sixteen, consider other gateway models or stacking multiple units.

Key specifications

• Analog interfaces: 16 FXS ports (RJ11) for connecting analog phones or PBX extensions.
• Network interface: 1 Gigabit Ethernet port for SIP signaling and RTP media.
• Form factor: 1U rackmount chassis suitable for standard equipment racks.
• Primary function: Analog-to-SIP protocol conversion and call routing for IP telephony migration.

How to use

Install the MediaPack 516 in a standard 19-inch rack occupying 1U of space and connect the device to the local LAN using the Gigabit Ethernet port. Attach analog telephones, fax machines, or PBX extension lines to the RJ11 FXS ports. Configure SIP trunk settings, call routing rules and network parameters using the device management interface or provisioning tools provided by the vendor. Verify SIP registration, codec settings and dial plan to ensure interoperability with the IP telephony server.

What to consider before purchase

• Confirm that sixteen FXS ports meet current and near-future requirements for analog endpoints.
• Ensure the single Gigabit Ethernet interface is sufficient for network topology and redundancy needs.
• Verify compatibility with the target SIP server, SIP trunk provider, or IP-PBX regarding supported codecs and registration methods.
• Plan rack space and power requirements for a 1U device in your equipment cabinet.

Usage recommendations

For reliable operation, place the MediaPack 516 on a stable rack with proper ventilation, use quality network cabling to connect to your SIP infrastructure, and apply vendor firmware updates and security configurations. Test fax and voice paths during deployment to confirm codec and T.38 or other fax handling compatibility if fax machines remain connected to analog ports.