Grandstream WP820 Cordless WiFi IP Phone

The Grandstream WP820 is a portable dual-band Wi-Fi IP phone built for staff who need to stay reachable while moving around a site. It connects straight to your existing 2.4GHz or 5GHz wireless network — no DECT base station required — and hands over between access points mid-call, so conversations survive the walk from the warehouse floor to the office.

With two SIP accounts, dual-microphone HD voice, integrated Bluetooth and a 1500mAh battery good for 7.5 hours of talking, the WP820 suits shift-based teams in logistics, retail, healthcare, education and hospitality. A configurable multi-function button supports push-to-talk and panic alerts, and the built-in accelerometer enables man-down style safety workflows.

Ideal for

• Warehouse and logistics teams working across large floor areas
• Retail staff who need to answer calls away from a desk
• Healthcare and care home environments
• Schools, colleges and campus sites
• Hotels, restaurants and facilities teams
• Lone workers needing a panic or push-to-talk button

Key features

• Dual-band Wi-Fi with roaming — 802.11a/b/g/n on 2.4GHz and 5GHz, with an antenna design tuned for seamless handover between access points
• Two SIP accounts, two lines — run a personal extension and a shared hunt group on one handset
• HD voice with dual microphones — AEC and Noise Shield keep speech clear in loud environments
• Integrated Bluetooth 4.2 — pair a headset, or sync contacts and transfer calls from a mobile
• 7.5 hours talk / 150 hours standby — a full shift on one charge from the 1500mAh Li-ion battery
• Configurable multi-function button — assign push-to-talk, panic alert or another action
• Accelerometer — supports motion-based safety features for lone workers
• Drop-safe to 1.2m — built for real working environments
• Android 7.0 platform — supports custom applications where required
• GDMS cloud provisioning — deploy and manage fleets remotely

Technical specification

Telephony

• 2 SIP accounts, 2 lines
• Codecs: G.711µ/a, G.722, G.729A/B, iLBC, Opus
• 3-way conferencing, hold, transfer, forward, call waiting
• Downloadable phonebook, push-to-talk

Wireless

• Wi-Fi 802.11 a/b/g/n, dual-band 2.4GHz and 5GHz
• Advanced roaming support
• Bluetooth 4.2 for headsets and mobile pairing
• Encryption: WEP, WPA/WPA2, WPA Enterprise, 802.1x

Display and interface

• 2.4-inch TFT colour LCD, 240 × 320
• Dual-colour LED status indicator
• 3.5mm headset jack
• Micro USB charging port

Battery and power

• Rechargeable 1500mAh Li-ion battery
• Up to 7.5 hours talk time
• Up to 150 hours standby time
• Universal power supply, 5VDC / 1A

Physical

• Handset: 168.5 × 52.5 × 21.8 mm, 161g
• Charging cradle: 76 × 73 × 81 mm
• Drop-safe from 1.2 metres
• Operating range: 0–45°C, 10–90% humidity (non-condensing)

Security and management

• 256-bit AES encryption, SRTP, TLS
• 802.1x authentication
• TR-069 and GDMS remote provisioning
• IPv6 support

Works with