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A white cordless handset with a colour screen, IP69K rugged casing and USB-C charging port

Grandstream

Grandstream WP836 VoIP Cordless Wi-Fi 6 Phone

SKU CH-PR3R-NBEAA MPN WP836

A rugged cordless VoIP handset with dual-band Wi-Fi 6, 3 SIP lines, 4-way conferencing and 10-hour talk time

  • TypeBluetooth Wi-Fi
  • StandardsIEEE 802.11a/b/g/n/ac/ax/k/v/r
  • Dual-band Wi-Fi 6 enables fast roaming across large sites
  • Three SIP accounts and four-way conferencing handle multi-party calls
  • HD voice with dual microphones, AEC, Noise Shield and AI cuts background noise
  • IP69K casing resists water, dust, chemicals and bacteria for harsh environments
  • 3000 mAh battery delivers 10-hour talk time and 240-hour standby

Rugged cordless IP phone for mobile workers

The Grandstream WP836 is a cordless VoIP handset built for staff who move across large sites. It supports three SIP accounts and four-way voice conferencing, so teams can stay connected without being tied to a desk. The IP69K-rated casing resists water, dust, cleaning chemicals and bacterial growth, making it suitable for healthcare, logistics and industrial environments. Dual-band Wi-Fi 6 with advanced roaming keeps calls stable while users walk between access points.

Simple deployment with a few configuration steps

The phone registers to a SIP server over Wi-Fi, so no dedicated cabling is needed for the handset itself. A USB Type-C port provides fast charging for the 3000mAh battery, which delivers 10-hour talk time and 240-hour standby. Bluetooth pairing lets users add wireless headsets without extra dongles. The main friction point is ensuring the Wi-Fi infrastructure supports 802.11k/v/r roaming; without it, handovers between access points may drop audio.

Three SIP accounts and four-way conferencing

The decisive specification is the ability to handle three simultaneous SIP registrations and host a four-party conference from the handset. If a deployment only needs a single line per user, a simpler device will suffice. Buyers who need more than three concurrent accounts or larger conference bridges should look elsewhere, as this model caps at those limits.

Highlights

  • Dual-band Wi-Fi 6 enables fast roaming across large sites
  • Three SIP accounts and four-way conferencing handle multi-party calls
  • HD voice with dual microphones, AEC, Noise Shield and AI cuts background noise
  • IP69K casing resists water, dust, chemicals and bacteria for harsh environments
  • 3000 mAh battery delivers 10-hour talk time and 240-hour standby

Specifications

BrandGrandstream
ModelWP836
Part NumberWP836
TypeBluetooth
Wi-Fi
StandardsIEEE 802.11a/b/g/n/ac/ax/k/v/r
Shipping weight0.61 kg
Package size206 × 130 × 84 mm

Questions about this item

How can I verify the WP836 is working correctly after setup?

Register the handset to your SIP server, place a test call and confirm HD voice clarity with Noise Shield active; the display will show three registered lines and the battery icon should indicate up to 10 hours of talk time.

What comes in the box with the WP836 and what must I purchase separately?

The package includes the cordless handset, a rechargeable 3000 mAh battery, and a Type-C USB cable for fast charging; a Bluetooth headset and any desk charger are sold separately.

Which WP836 version should I choose for my environment?

The single WP836 model supports dual-band Wi-Fi 6 (802.11a/b/g/n/ac/ax/k/v/r), IP69K-rated waterproof and dustproof casing, and antibacterial housing — select it when you need rugged mobility across offices, logistics, healthcare or security settings.

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