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DECT Wireless Handsets for Warehouses: Mobility Without Dropped Calls
A warehouse supervisor coordinating inbound deliveries from a forklift, a picker confirming a stock location from a cold-storage aisle, and a shift lead taking a call from the mezzanine all have the same problem: the phone is always where the person is not. Cordless handsets solve this, but only if the wireless technology is designed for industrial environments rather than office corridors.
Why DECT Beats Wi-Fi for Voice in Industrial Settings
DECT, the Digital Enhanced Cordless Telecommunications standard, operates on a dedicated frequency band that is completely separate from Wi-Fi. This separation is the critical difference. Wi-Fi handsets compete with scanners, access points, and warehouse automation systems for the same airtime, so voice quality degrades precisely when the network is busiest. A DECT base station is a self-contained cell that does not touch the data network at all.
The practical consequence for warehouses
- Voice traffic never competes with scanner or Wi-Fi traffic for airtime
- Coverage is predictable and can be measured cell by cell during installation
- Handsets roam between cells as workers move through the facility
- Existing IT wireless infrastructure stays untouched
Planning Coverage for Warehouse Floor Plans
Warehouse coverage planning is fundamentally different from office planning. Coverage must extend to racking aisles that create narrow metal corridors, loading docks with open steel doors, freezer environments, and outdoor yard areas. The installer walks the floor with a test handset and checks call quality at each zone rather than relying on a theoretical site survey.
| Zone | Challenge |
|---|---|
| Racking aisles | Metal shelving attenuates radio signals; cells must overlap laterally |
| Loading docks | Open doors create interference sources and weather exposure |
| Freezer / cold store | Thermal cycling affects both handset and battery performance |
| Yard and perimeter | Requires higher-power cells or a dedicated outdoor cell |
| Office mezzanine | Concrete and glass; usually a separate small cell |
Choosing Between DECT and Wi-Fi Handsets
Neither technology wins outright. The right answer depends on how the site is actually used.
| Consideration | DECT handset | Wi-Fi handset |
|---|---|---|
| Voice reliability | Dedicated band, predictable | Variable under load |
| Existing network dependency | None | Full dependency on Wi-Fi health |
| Battery life | Typically longer | Typically shorter |
| Mobility outside building | Limited | Roaming between access points |
| IT ownership | Independent of IT team | Managed by IT team |
| Best fit | Warehouse floor, production, retail stockroom | Office desktops, roaming staff |
Redstone Platform Support
Redstone REX IP-PBX platforms integrate DECT handsets into the same extension model as wired NRP desk phones and softphone endpoints. Staff move between a desk phone, a warehouse handset, and a mobile softphone using the same extension number and the same call handling rules. Call routing, ring groups, and voicemail follow the user rather than the device.
Coexistence planning
In mixed environments, Redstone supports simultaneous deployment of DECT handsets and Wi-Fi softphones on the same platform, so a site can start with wireless coverage on the warehouse floor while office staff remain on wired NRP desk phones. This phased approach avoids forcing an all-or-nothing replacement decision.
Charging and Handling Strategy
Wireless handsets fail in predictable ways: dead batteries and missed shift handovers. A workable policy treats handsets like shared equipment rather than personal devices. Charging racks near shift-change points, a documented procedure for overnight charging, and a small spare pool all reduce the failure impact considerably. Sites that assign handsets permanently to a role or zone rather than to an individual also simplify cleaning, firmware updates, and stock control.
Questions to Ask Before Deployment
- How many handsets does each shift need in operation simultaneously?
- Which zones have no coverage today, and how far do staff walk today to reach a phone?
- Are existing Wi-Fi systems carrying scanner traffic or other industrial loads?
- What is the required battery endurance for a full shift plus overtime?
- Will the handsets be shared or assigned, and who manages the shared pool?
Redstone provides wireless coverage planning and sizing guidance for warehouses, distribution centres, and manufacturing sites, along with a comparison of desktop, softphone, and wireless endpoint options to fit your actual movement patterns.
Redstone 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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