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Meraki MG51-HW Cellular VoIP Gateway - 3 RJ-45 PoE Ports - Gigabit Ethernet - LTE
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Product Features
Technical Overview
The MG51 gateway features three RJ-45 network ports operating at Gigabit Ethernet speeds with 1000Base-T compatibility, ensuring high-bandwidth connectivity for voice and data traffic. Power over Ethernet support allows the gateway to deliver power to connected devices such as IP phones or wireless access points, simplifying cable management and reducing power outlet requirements.
LTE cellular connectivity provides automatic failover capability, maintaining voice communication during primary network outages. The dedicated management port enables out-of-band administration and monitoring without affecting production traffic. The compact chassis measures 6.81 inches square with a 1.44-inch profile, making it suitable for space-constrained installations.
This section brings together practical product details such as PoE (RJ-45) Port, Management Port, Number of Network (RJ-45) Ports, Ethernet Technology, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
The Meraki MG51 gateway offers several advantages for business communication deployments. The integrated LTE cellular connectivity provides automatic failover, ensuring voice services remain available during network disruptions. Power over Ethernet support reduces infrastructure complexity by eliminating separate power supplies for connected devices.
Reliable Connectivity
Three Gigabit Ethernet ports with PoE support deliver both data and power to connected devices, while LTE cellular backup maintains communication during primary network outages.
- Automatic failover to cellular
- PoE for connected devices
- Dedicated management port
Simplified Deployment
The compact design and lightweight construction enable flexible installation options, from desktop placement to wall mounting in space-constrained environments.
- Compact 6.81" square footprint
- 1.23 lb weight
- Cloud management interface
Deployment / Use Cases
The MG51 Cellular VoIP Gateway is designed for business environments requiring reliable voice communication with built-in redundancy. Primary deployment scenarios include small to medium businesses implementing VoIP systems, retail locations needing consistent communication for customer service operations, and distributed enterprises requiring network resilience across multiple sites.
The gateway serves effectively as a primary communication device in offices with standard Ethernet infrastructure, while the LTE cellular backup makes it suitable for locations with unreliable internet service or as a failover solution for critical communication systems. The PoE capability supports deployment with IP phones and other PoE-enabled devices without additional power infrastructure.
Business VoIP Systems
Deploy as the network gateway for office VoIP systems, providing both primary Ethernet connectivity and cellular backup for uninterrupted voice service.
Retail and Hospitality
Install in retail environments where reliable communication is essential for customer service operations, with automatic failover during network disruptions.
Physical Profile
The MG51 gateway features a compact square design measuring 6.81 inches in width and depth with a 1.44-inch height profile. The lightweight construction at 1.23 pounds facilitates flexible installation options including desktop placement, wall mounting, or integration into network cabinets. The small footprint makes it suitable for environments with limited space while maintaining full gateway functionality.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 1.44" (36.50 mm), 6.81" (173 mm), 6.81" (173 mm), 1.23 lb (560 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 6.81" (173 mm)
- Depth
- 6.81" (173 mm)
- Height
- 1.44" (36.50 mm)
- Weight
- 1.23 lb (560 g)
Highlights
- Three RJ-45 Gigabit Ethernet ports with PoE support
- Integrated LTE cellular connectivity for automatic failover
- Dedicated management port for out-of-band administration
- Compact 6.81" square design with 1.44" height profile
- Lightweight construction at 1.23 pounds for flexible deployment
- 1000Base-T network standard compatibility
- Cloud-managed through Meraki dashboard
- Suitable for small to medium business VoIP deployments
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | MG51-HW |
| Brand Name | Cisco Meraki |
| Product Series | MG |
| Product Model | MG51 |
| Product Name | MG51 Cellular VoIP Gateway |
| Product Type | Cellular VoIP Gateway |
| Interfaces/Ports | |
| PoE (RJ-45) Port | Yes |
| Management Port | Yes |
| Number of Network (RJ-45) Ports | 3 |
| Network & Communication | |
| Ethernet Technology | Gigabit Ethernet |
| Network Standard | 1000Base-T |
| Wireless Specifications | |
| Cellular Data Connectivity Technology | LTE |
| Physical Characteristics | |
| Height | 1.44" (36.50 mm) |
| Width | 6.81" (173 mm) |
| Depth | 6.81" (173 mm) |
| Weight (Approximate) | 1.23 lb (560 g) |
FAQ
How many network ports does the MG51 gateway have?
The Cisco Meraki MG51 Cellular VoIP Gateway features three RJ-45 network ports. These ports support Gigabit Ethernet speeds with 1000Base-T compatibility, providing sufficient connectivity for multiple devices in a business environment. All three ports include Power over Ethernet capability to deliver both data and power to connected devices.
Does this gateway support Power over Ethernet?
Yes, the MG51 gateway includes Power over Ethernet support on its three RJ-45 network ports. This allows the gateway to provide power to connected PoE-enabled devices such as IP phones, wireless access points, or security cameras, reducing the need for separate power supplies and simplifying cable management in deployment scenarios.
What cellular technology does the MG51 gateway use?
The MG51 gateway features LTE cellular data connectivity technology. This provides automatic failover capability when the primary Ethernet connection experiences issues, ensuring voice communication remains available during network disruptions. The LTE connectivity serves as a backup path to maintain business communication continuity.
What is the purpose of the management port?
The dedicated management port enables out-of-band administration and monitoring of the gateway without affecting production traffic on the main network ports. This allows network administrators to configure, troubleshoot, and maintain the device independently of the data passing through the three primary RJ-45 ports, ensuring management access even during network issues.
What are the physical dimensions of the MG51 gateway?
The MG51 gateway measures 6.81 inches in width, 6.81 inches in depth, and 1.44 inches in height (173 x 173 x 36.5 mm). This compact square design with a low profile makes it suitable for various installation scenarios including desktop placement, wall mounting, or integration into network cabinets where space is limited.
What type of Ethernet technology does this gateway support?
The MG51 gateway supports Gigabit Ethernet technology with 1000Base-T network standard compatibility. This provides high-bandwidth connectivity capable of handling voice traffic along with data requirements in business environments. The three RJ-45 ports deliver this performance while maintaining compatibility with standard network infrastructure.
How many SIP lines or accounts does this phone support?
Communication products are best understood through their line support, connectivity profile, and deployment fit. Those details help buyers confirm desk-phone or conference-room suitability before rollout.
Does this model support PoE?
The listed telephony detail is Yes, which helps buyers confirm deployment fit for desk-phone and unified-communications environments.
| Qty | Price | Available |
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