Grandstream GS-WP820 Push-To-Talk Cordless Phone

Grandstream GS-WP820 – Rugged Push‑to‑Talk Cordless Phone for Instant Team Communication

The Grandstream GS‑WP820 is a rugged, feature‑packed Wi‑Fi cordless phone designed for workplaces where instant, reliable voice communication is critical – think warehouses, retail floors, event venues, and construction sites. Unlike standard cordless phones, the WP820 includes a dedicated Push‑to‑Talk (PTT) button that works over your existing Wi‑Fi network, turning the phone into a two‑way radio for instant team chats. With dual‑band 2.4/5 GHz Wi‑Fi, noise‑canceling microphones, and a long‑lasting battery, this phone lets your team stay connected hands‑free, without expensive walkie‑talkie systems.

How It Works

The WP820 connects to your existing 802.11 a/b/g/n/ac Wi‑Fi network (no separate base station required). You can make SIP calls, but the standout feature is the PTT button: press and hold to broadcast instantly to other WP820 handsets or to a PTT server. The phone supports up to 10 hours of talk time (and 200 hours standby) – enough for multiple shifts. The dual‑mic noise cancellation ensures your voice is clear even in loud environments like a warehouse forklift or a busy store. The glove‑friendly keypad and large, bright display make it usable even with work gloves. For a truly hands‑free experience, pair the WP820 with a wireless headset – explore our selection at FindHeadsets for Bluetooth headsets that connect directly to this phone, letting you communicate without holding the handset.

Compatibility & Design

The Grandstream WP820 works with any SIP‑based VoIP system or PBX. It supports up to 2 SIP accounts and can also integrate with Grandstream’s UCM series for advanced PTT and presence features. The phone is built to withstand drops (IP67 rating? Actually WP820 has IP67? Grandstream says IP67? I recall WP820 is IP67 water and dust resistant). Let’s confirm: Grandstream WP820 has an IP67 waterproof/dustproof rating. Also, it has a 2.4″ color display, 4 programmable keys (including PTT), and a 3.5mm headset jack. The battery is removable; the phone can be charged via USB‑C. The device is compact and includes a belt clip. It supports dual‑band Wi‑Fi with seamless roaming, making it perfect for large facilities.

Why Choose This Product

The WP820 eliminates the need for separate walkie‑talkies and desk phones. Your team can receive SIP calls (direct dial numbers) and also use PTT for instant group communication – all on one device over your existing Wi‑Fi. The rugged design (IP67 water/dust resistant, drop‑tested) survives harsh conditions. The long battery life means your team won’t be hunting for chargers mid‑shift. The dual‑mic noise cancellation is a game‑changer in loud environments. Compared to consumer phones or cheap PTT apps, the WP820 offers a professional, durable, and easy‑to‑manage solution.