Description
The AudioCodes MediaPack 124 (MP124/24S/AC/SIP/D) is a 24-port FXS analog VoIP gateway for connecting up to 24 analog phones, fax machines, and analog devices to SIP-based IP telephony networks. AC-powered and rack-mountable in 1U, it supports SIP and T.38 fax relay, with a built-in DHCP server. All 24 FXS lines are accessible via a single RJ-21 (Amphenol Telco) connector, making it compatible with standard 25-pair structured cabling infrastructure. It is the enterprise standard for analog-to-SIP migration at the 24-port scale.
The Telecom Spot Take
The MediaPack 124 is the most widely deployed mid-density analog gateway in enterprise environments — and for good reason. Twenty-four FXS ports cover a typical floor or department in most buildings, and the RJ-21 connector integrates cleanly with the 25-pair punchdown blocks already present in most structured cabling systems. This means the MP124 drops into an existing phone cabling infrastructure without rewiring — you simply connect the 25-pair cable from the IDF punchdown block to the RJ-21 port. SIP interoperability is broad, T.38 ensures fax reliability, and the 1U rack-mount form factor fits any equipment closet. Use the MP124-CONNECTION-BOX accessory for direct RJ-11 connections or the MP124-PATCH-PANEL for organized port management. For deployments over 24 ports, the MediaPack 1288 scales to 144 ports.
Key Features
- 24 FXS analog ports — enterprise standard for department or floor-level analog endpoint migration
- RJ-21 Telco connector — integrates with existing 25-pair structured cabling without rewiring
- SIP and T.38 fax support — phones and fax machines operate on modern SIP infrastructure
- AC-powered, 1U rack-mount — fits standard equipment closets alongside other rack infrastructure
- Built-in DHCP — simplifies IP addressing in environments without dedicated DHCP servers
- Broad SIP interoperability — compatible with major IP PBX, hosted UCaaS, and Microsoft Teams platforms
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | MP124/24S/AC/SIP/D |
| Platform | AudioCodes MediaPack 124 |
| FXS Ports | 24 |
| Port Connector | RJ-21 (Amphenol Telco 50-pin) |
| Protocol | SIP |
| Fax Support | T.38 fax relay |
| Power | AC |
| DHCP | Built-in DHCP server/client |
| Form Factor | 1U rack-mount |
| Vendor | AudioCodes |

