Current Location ：
Not every location that needs phone service has a wired line to build it on. Construction site offices, temporary event venues, rural kiosks, pop-up branches, and vehicles all need voice connectivity — and even sites with fiber or cable need a Plan B when that connection fails. The Redstone EGW50 4G LTE gateway answers both problems with one compact device.
Two Roles, One Device
Primary Connectivity Where Wiring Is Not an Option
For temporary or hard-to-wire locations, the EGW50 establishes voice service over cellular data networks. SIP endpoints and analog devices connect to the gateway, which carries calls across the 4G LTE network to the organization's IP-PBX or SIP platform. Staff at a construction site office or seasonal location get real extensions — voicemail, transfer, recording, and directory access included — without waiting for a carrier installation.
Automatic Failover for Critical Sites
For permanent sites, the EGW50 serves as insurance. When the primary broadband link fails — a cut fiber cable, an ISP outage, a router failure — the gateway's LTE connection keeps voice service running. Calls fail over automatically, and when the primary link recovers, traffic returns to normal routing. For businesses where every missed call is lost revenue or a compliance risk, this backup layer pays for itself the first time the primary link fails.
Deployment Scenarios
- Construction and temporary sites — project offices need working phones from day one, then move to the next location
- Rural and remote branches — locations where wired broadband is slow, expensive, or unavailable
- Event and seasonal operations — temporary ticket offices, seasonal retail, exhibition stands
- Disaster recovery readiness — organizations that must keep emergency lines reachable under all conditions
- Transitional coverage — bridging service during office moves while fixed lines are provisioned
How It Fits the Redstone Portfolio
The EGW50 complements Redstone's wired gateway family. Where RGW series gateways convert analog lines and devices to SIP over fixed networks, the EGW50 removes the fixed-network requirement entirely. Configuration knowledge transfers across the family: dial plans, SIP registration, and management interfaces remain consistent, so adding wireless sites to an existing Redstone deployment requires no new operational learning.
| Need | Fit |
|---|---|
| Convert analog phones to SIP | RGW series FXS/FXO gateways |
| High-density analog conversion | RGW96 |
| Small branch / site | RGW8 |
| No wired line / backup link | EGW50 4G LTE |
Practical Considerations
Cellular performance varies by location, so deployment starts with a signal assessment at the installation site. Voice traffic is bandwidth-efficient — standard voice codecs such as G.711 and G.729 keep consumption modest — but coverage quality determines call reliability, and external antenna options extend reception where needed. Data plans should be sized to expected call volumes with headroom for failover scenarios.
Redstone assists with site feasibility checks, gateway configuration, and failover testing so backup connectivity is verified before it is ever needed.
Check EGW50 fit for your sitesRedstone Systems, Inc. founded in Delaware, USA in December 2002, has been the ODM vendor for many well-known communications companies, serving the Southeast Asian market. In 2020, Redstone Systems will begin to return to the North America market with its self-developed brand.
Redstone has a complete product line of intelligent voice gateways, providing IP-PBXs, analog VoIP gateways (FXS/FXO), digital VoIP gateways (E1/T1), border appliances, and session boundary controllers (SBCs).
With advanced technology in digital signal processor (DSP), speech coding and speech processing, as well as efficient operational tools such as cloud remote management, auto provisioning, Redstone gateways are widely used in markets of enterprise communications, cloud communications, call centers, operators’ IMS/SIP trunks, bringing users friendly, efficient and reliable communication experience.
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