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Meraki MG51E-HW Cellular VoIP Gateway - 3 RJ-45 PoE Ports - Gigabit Ethernet - LTE
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Product Features
Technical Overview
The MG51E-HW operates on Gigabit Ethernet (1000Base-T) standards, offering high-speed data transfer for VoIP traffic and network services. Its LTE cellular connectivity serves as a resilient backup path, automatically switching to cellular data when the primary wired connection fails, minimizing downtime for critical voice communications.
Power over Ethernet support on the RJ-45 ports allows the gateway to deliver power to compatible IP phones, access points, or other PoE devices, reducing cabling complexity and eliminating the need for separate power adapters at each endpoint. The dedicated management port enables secure out-of-band administration, keeping configuration traffic isolated from production networks.
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 MG51E-HW excels in providing uninterrupted VoIP service through its dual-path connectivity, combining wired Gigabit Ethernet with LTE cellular failover. This design ensures voice communications persist during internet outages, making it ideal for businesses where call continuity is critical.
Integrated Cellular Backup
LTE connectivity automatically activates when the primary Ethernet link drops, maintaining VoIP service without manual intervention.
- Automatic failover
- Seamless switchback
- No additional modems required
PoE-Powered Deployment
Power over Ethernet support simplifies installation by delivering both data and power over a single cable to connected devices.
- Reduces cabling clutter
- Eliminates local power outlets
- Supports standard PoE devices
Centralized Meraki Management
Remote configuration, monitoring, and troubleshooting through the cloud-based Meraki dashboard provide visibility and control from anywhere.
- Real-time diagnostics
- Firmware updates
- Usage analytics
Deployment / Use Cases
The MG51E-HW is tailored for small to medium businesses, retail locations, and remote offices that depend on reliable VoIP telephony. Its cellular backup capability makes it particularly valuable in areas with unstable broadband or as a redundancy solution for mission-critical communication systems.
Common deployments include primary VoIP gateway installations where the LTE link serves as failover, branch office setups with limited IT support, and temporary sites requiring quick connectivity. The compact size and PoE support also suit wall-mounted installations in conference rooms, reception areas, or retail counters where space and power access are constrained.
Branch Office Connectivity
Provide VoIP service with built-in cellular backup for remote offices without dedicated IT staff, ensuring calls continue during internet disruptions.
Retail & Hospitality
Deploy at point-of-sale or front desk locations where reliable phone lines are essential for customer service and operations.
Physical Profile
The gateway features a compact square design measuring 6.81 inches wide by 6.81 inches deep by 1.44 inches high (173 x 173 x 36.5 mm), with a lightweight construction of 1.58 pounds (717 g). This form factor allows flexible placement on desks, shelves, or wall mounts, and its low profile integrates discreetly into office environments. The sturdy build ensures durability for continuous operation in commercial settings.
- Width
- 6.81" (173 mm)
- Depth
- 6.81" (173 mm)
- Height
- 1.44" (36.50 mm)
- Weight
- 1.58 lb (717 g)
Highlights
- Cellular VoIP Gateway with LTE backup for uninterrupted communications
- Three RJ-45 ports with Power over Ethernet support
- Gigabit Ethernet (1000Base-T) for high-speed data transfer
- Dedicated management port for secure administration
- Compact square design: 6.81" x 6.81" x 1.44" (173 x 173 x 36.5 mm)
- Lightweight at 1.58 lb (717 g) for easy installation
- Meraki cloud management for remote monitoring and configuration
- Automatic failover between Ethernet and cellular connections
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | MG51E-HW |
| Brand Name | Cisco Meraki |
| Product Series | MG |
| Product Model | MG51E |
| Product Name | MG51E 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) | 1.58 lb (717 g) |
FAQ
What is the primary function of the Meraki MG51E-HW gateway?
The MG51E-HW is a Cellular VoIP Gateway designed to provide reliable voice-over-IP connectivity with integrated LTE cellular backup. It ensures business phone systems remain operational by automatically switching to LTE when the primary Ethernet internet connection fails, minimizing downtime for critical communications.
How many Ethernet ports does the MG51E-HW have, and do they support PoE?
This gateway includes three RJ-45 Ethernet ports. Yes, these ports support Power over Ethernet (PoE), allowing them to deliver both data and electrical power to connected devices such as IP phones or wireless access points, simplifying installation and reducing cable clutter.
What cellular technology does the MG51E-HW use for backup connectivity?
The MG51E-HW uses LTE (Long-Term Evolution) cellular data connectivity for backup purposes. This provides a reliable secondary path for VoIP traffic when the primary wired internet connection is unavailable, ensuring continuous phone service without manual intervention.
Can the MG51E-HW be managed remotely?
Yes, the MG51E-HW can be managed remotely through the Cisco Meraki cloud dashboard. The dedicated management port allows for secure out-of-band administration, enabling IT staff to configure, monitor, update firmware, and troubleshoot the gateway from anywhere with internet access.
What are the physical dimensions and weight of the MG51E-HW?
The 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), with an approximate weight of 1.58 pounds (717 g). Its compact and lightweight design facilitates easy placement on desks, walls, or in rack mounts for flexible deployment.
Is the MG51E-HW suitable for small business or branch office use?
Absolutely. The MG51E-HW is ideal for small to medium businesses, retail locations, and branch offices that require dependable VoIP with failover capability. Its PoE support, cellular backup, and remote management features make it a robust solution for environments with limited IT support or unstable internet connections.
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.