Grandstream WiFi Cordless Phones

Grandstream WP810 Wi-Fi IP Phone The Grandstream WP810 is a compact 2-line cordless Wi-Fi IP phone for mobile staff in offices, retail, logistics, medical and security environments. Its dual-band 802.11a/b/g/n/ac Wi-Fi and 802.11k/r/v roaming support provide reliable wireless connectivity while users move through compatible Wi-Fi environments, with HD voice and dual microphones supporting clear calls.

A 1.8in colour display, configurable push-to-talk button, speakerphone, 3.5mm headset jack and rechargeable 1500mAh battery make it practical for everyday portable use, with up to 6 hours of talk time and 120 hours of standby.



.spaced-list li { margin-bottom: 0.7em; } .spaced-list li:last-child { margin-bottom: 2em; } Key Features 2 SIP [Session Initiation Protocol] accounts and 2 lines
Dual-band 802.11a/b/g/n/ac Wi-Fi operating on 2.4GHz and 5GHz bands
802.11k/r/v roaming support for movement across compatible wireless networks
1.8in 128 x 160 TFT colour LCD
HD [High Definition] audio on the handset and speakerphone with G.722 and Opus codec support
Dual microphones with AEC [Acoustic Echo Cancellation] and Noise Shield Technology
Configurable push-to-talk button
Rechargeable 1500mAh battery with up to 6 hours talk time and 120 hours standby
3.5mm headset jack and Micro USB charging port
3-way audio conferencing with server redundancy and fail-over support
TLS [Transport Layer Security] and SRTP [Secure Real-time Transport Protocol] support for secure communications


Key Benefits Designed for mobile roles where users need business voice communications away from a fixed desk
Advanced roaming support helps maintain connectivity as users move through supported Wi-Fi environments
PTT [Push-to-Talk] can be assigned to the configurable button for instant walkie-talkie-style communication, saving time compared to dialling and waiting for a call to connect
Compact 120g handset is easy to carry throughout the working day
Server redundancy and fail-over support help maintain calling availability if the primary server becomes unavailable


The package includes the WP810 handset, universal power supply, charger cradle, belt clip, 1 Li-ion battery and Quick Start Guide.

Comms Express offers the WP810 alongside other cordless Wi-Fi phone options in Grandstream WiFi Cordless Phones, including:

WP810 - 1.8in col. display, Wi-Fi*, 1500mAh battery, 6h talk time, PTT
WP820 - 2.4in col. display, Wi-Fi*, Bluetooth 4.2, 1500mAh battery, 7.5h talk time, Android app support
WP822 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, PTT
WP825 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, IP67, 2.5m drop protection
* WP810 / WP822 / WP825 - 802.11ac Wi-Fi
* WP820 - 802.11n Wi-Fi

Comms Express also offers everything needed to support wider VoIP and network deployments:

Grandstream IP PBX Appliances - a comprehensive choice of on-premise unified communications solutions
Wireless Access Points - an extensive range from Grandstream and other leading manufacturers for reliable business Wi-Fi coverage
Network Switches - a huge range from Grandstream and other leading manufacturers
*For complete specifications see the documentation tab above

Grandstream WP820 WiFi Cordless Phone The Grandstream WP820 is a 2-line portable Wi-Fi phone for mobile staff in offices, retail, logistics, medical and security environments. Its dual-band 802.11a/b/g/n Wi-Fi, roaming support and Bluetooth 4.2 provide flexible wireless connectivity, while HD voice and dual microphones help maintain clear calls.

A 2.4in colour display, accelerometer, configurable function button, speakerphone, 3.5mm headset jack and rechargeable 1500mAh battery support everyday mobile use, with up to 7.5 hours of talk time and 150 hours of standby. Android 7.0 also supports compatible custom applications designed for the phone's screen and physical controls.



.spaced-list li { margin-bottom: 0.7em; } .spaced-list li:last-child { margin-bottom: 2em; } Key Features 2 SIP [Session Initiation Protocol] accounts and 2 lines
Dual-band 802.11a/b/g/n Wi-Fi operating on 2.4GHz and 5GHz bands
2.4in 240 x 320 TFT colour LCD
Bluetooth 4.2 for compatible headsets and mobile devices
HD [High Definition] audio on the handset and speakerphone with G.722 and Opus codec support
Dual microphones with AEC [Acoustic Echo Cancellation] and Noise Shield Technology
Accelerometer and configurable button for push-to-talk, panic calls and other functions
Rechargeable 1500mAh battery with up to 7.5 hours talk time and 150 hours standby
3.5mm headset jack and Micro USB charging port
3-way audio conferencing with server redundancy and fail-over support
Android 7.0 with support for compatible custom Android applications designed for the phone's screen and physical controls
TLS [Transport Layer Security] and SRTP [Secure Real-time Transport Protocol] support for secure communications


Key Benefits Designed for mobile roles where users need business voice communications away from a fixed desk
Wi-Fi roaming support helps maintain connectivity as users move through compatible wireless environments
Bluetooth 4.2 supports compatible wireless headsets and mobile-device contact synchronisation and call transfer
PTT [Push-to-Talk] can be assigned to the configurable button for instant walkie-talkie-style communication, saving time compared to dialling and waiting for a call to connect
Custom Android app support enables the handset to be adapted for suitable business applications
Drop-safe from 1.2m for added durability in mobile working environments
Accelerometer supports configurable motion-based functions, allowing the handset to be tailored to different mobile working requirements


The package includes the WP820 handset, universal power supply, charger cradle, belt clip, 1 Li-ion battery and Quick Start Guide.

Comms Express offers the WP820 alongside other cordless Wi-Fi phone options in Grandstream WiFi Cordless Phones, including:

WP810 - 1.8in col. display, Wi-Fi*, 1500mAh battery, 6h talk time, PTT
WP820 - 2.4in col. display, Wi-Fi*, Bluetooth 4.2, 1500mAh battery, 7.5h talk time, Android app support
WP822 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, PTT
WP825 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, IP67, 2.5m drop protection
* WP810 / WP822 / WP825 - 802.11ac Wi-Fi
* WP820 - 802.11n Wi-Fi

Comms Express also offers everything needed to support wider VoIP and network deployments:

Grandstream IP PBX Appliances - a comprehensive choice of on-premise unified communications solutions
Wireless Access Points - an extensive range from Grandstream and other leading manufacturers for reliable business Wi-Fi coverage
Network Switches - a huge range from Grandstream and other leading manufacturers
*For complete specifications see the documentation tab above

Grandstream WP822 WiFi Phone The Grandstream WP822 is a 2-line portable Wi-Fi IP phone for mobile staff in offices, retail, logistics, medical and security environments. Its dual-band 802.11a/b/g/n/ac Wi-Fi and 802.11k/r/v roaming support provide reliable wireless connectivity while users move through compatible Wi-Fi environments, with integrated Bluetooth for compatible headsets.

A 2.4in colour display, configurable push-to-talk button, accelerometer, speakerphone, 3.5mm headset jack and rechargeable 2000mAh battery support everyday mobile use, with up to 8 hours of talk time and 200 hours of standby. HD voice with dual microphones, AEC and Noise Shield Technology helps maintain clear calls.



.spaced-list li { margin-bottom: 0.7em; } .spaced-list li:last-child { margin-bottom: 2em; } Key Features 2 SIP [Session Initiation Protocol] accounts and 2 lines
Dual-band 802.11a/b/g/n/ac Wi-Fi operating on 2.4GHz and 5GHz bands
802.11k/r/v roaming support for movement across compatible wireless networks
2.4in 240 x 320 TFT colour LCD
Integrated Bluetooth for compatible wireless headsets
HD [High Definition] audio on the handset and speakerphone with G.722 and Opus codec support
Dual microphones with AEC [Acoustic Echo Cancellation] and Noise Shield Technology
Accelerometer with support for configurable gestures
Configurable push-to-talk button
Rechargeable 2000mAh battery with up to 8 hours talk time and 200 hours standby
3.5mm headset jack and Micro USB charging port
3-way audio conferencing with server redundancy and fail-over support
WPA3/WPA3-Enterprise wireless security support
TLS [Transport Layer Security] and SRTP [Secure Real-time Transport Protocol] support for secure communications


Key Benefits Designed for mobile roles where users need business voice communications away from a fixed desk
Advanced roaming support helps maintain connectivity as users move through supported Wi-Fi environments
Bluetooth provides cable-free connection to compatible wireless headsets
PTT [Push-to-Talk] can be assigned to the configurable button for instant walkie-talkie-style communication, saving time compared to dialling and waiting for a call to connect
Accelerometer supports configurable motion-based functions, allowing the handset to be tailored to different mobile working requirements
2000mAh battery provides up to 8 hours talk time and 200 hours standby for extended mobile use


The package includes the WP822 handset, universal power supply, charger cradle, belt clip, 1 Li-ion battery and Quick Start Guide.

Comms Express offers the WP822 alongside other cordless Wi-Fi phone options in Grandstream WiFi Cordless Phones, including:

WP810 - 1.8in col. display, Wi-Fi*, 1500mAh battery, 6h talk time, PTT
WP820 - 2.4in col. display, Wi-Fi*, Bluetooth 4.2, 1500mAh battery, 7.5h talk time, Android app support
WP822 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, PTT
WP825 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, IP67, 2.5m drop protection
* WP810 / WP822 / WP825 - 802.11ac Wi-Fi
* WP820 - 802.11n Wi-Fi

Comms Express also offers everything needed to support wider VoIP and network deployments:

Grandstream IP PBX Appliances - a comprehensive choice of on-premise unified communications solutions
Wireless Access Points - an extensive range from Grandstream and other leading manufacturers for reliable business Wi-Fi coverage
Network Switches - a huge range from Grandstream and other leading manufacturers
*For complete specifications see the documentation tab above

Grandstream WP825 Cordless Wi-Fi Phone The Grandstream WP825 is a ruggedised 2-line cordless Wi-Fi IP phone for mobile staff in demanding retail, logistics, medical, security and other working environments. Its dual-band 802.11a/b/g/n/ac Wi-Fi and 802.11k/r/v roaming support provide reliable wireless connectivity while users move through compatible Wi-Fi environments, with integrated Bluetooth for compatible headsets.

An IP67-rated casing protects against water and dust, while the handset is also cleaning-chemical resistant, anti-microbial and drop-safe from 2.5m. A 2.4in colour display, configurable push-to-talk button, accelerometer and rechargeable 2000mAh battery support mobile working, with up to 8 hours of talk time and 200 hours of standby.



.spaced-list li { margin-bottom: 0.7em; } .spaced-list li:last-child { margin-bottom: 2em; } Key Features 2 SIP [Session Initiation Protocol] accounts and 2 lines
Dual-band 802.11a/b/g/n/ac Wi-Fi operating on 2.4GHz and 5GHz bands
802.11k/r/v roaming support for movement across compatible wireless networks
2.4in 240 x 320 TFT colour LCD
Integrated Bluetooth for compatible wireless headsets
HD [High Definition] audio on the handset and speakerphone with G.722 and Opus codec support
Dual microphones with AEC [Acoustic Echo Cancellation] and Noise Shield Technology
Accelerometer with support for configurable gestures
Configurable push-to-talk button
Rechargeable 2000mAh battery with up to 8 hours talk time and 200 hours standby
IP67-rated waterproof and dustproof construction
Cleaning-chemical resistant, anti-microbial casing and 2.5m drop protection
3.5mm headset jack and Micro USB charging port
3-way audio conferencing with server redundancy and fail-over support
WPA3/WPA3-Enterprise wireless security support
TLS [Transport Layer Security] and SRTP [Secure Real-time Transport Protocol] support for secure communications


Key Benefits Rugged IP67 construction suits mobile use in demanding environments where water, dust and accidental drops are likely
Cleaning-chemical resistant, anti-microbial casing supports use in environments where regular handset cleaning is important
Advanced roaming support helps maintain connectivity as users move through supported Wi-Fi environments
PTT [Push-to-Talk] can be assigned to the configurable button for instant walkie-talkie-style communication, saving time compared to dialling and waiting for a call to connect
Accelerometer supports configurable motion-based functions, allowing the handset to be tailored to different mobile working requirements
2000mAh battery provides up to 8 hours talk time and 200 hours standby for extended mobile use


The package includes the WP825 handset, universal power supply, charger cradle, belt clip, 1 Li-ion battery and Quick Start Guide.

Comms Express offers the WP825 alongside other cordless Wi-Fi phone options in Grandstream WiFi Cordless Phones, including:

WP810 - 1.8in col. display, Wi-Fi*, 1500mAh battery, 6h talk time, PTT
WP820 - 2.4in col. display, Wi-Fi*, Bluetooth 4.2, 1500mAh battery, 7.5h talk time, Android app support
WP822 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, PTT
WP825 - 2.4in col. display, Wi-Fi*, Bluetooth, 2000mAh battery, 8h talk time, IP67, 2.5m drop protection
* WP810 / WP822 / WP825 - 802.11ac Wi-Fi
* WP820 - 802.11n Wi-Fi

Comms Express also offers everything needed to support wider VoIP and network deployments:

Grandstream IP PBX Appliances - a comprehensive choice of on-premise unified communications solutions
Wireless Access Points - an extensive range from Grandstream and other leading manufacturers for reliable business Wi-Fi coverage
Network Switches - a huge range from Grandstream and other leading manufacturers
*For complete specifications see the documentation tab above

Grandstream WP816 Wi-Fi IP Phone The Grandstream WP816 is a compact 2-line cordless Wi-Fi 6 IP phone for mobile staff in offices, retail, logistics, healthcare, security and other business environments. Its advanced antenna design and 802.11k/r/v roaming support help maintain reliable wireless connectivity as users move through compatible Wi-Fi networks.

HD voice with dual microphones, Noise Shield Technology and AI noise cancellation support clear conversations, while Bluetooth 5.0, push-to-talk, an emergency button and USB-C fast charging add flexibility for mobile working. Its 1500mAh battery provides up to 6 hours of talk time and 120 hours of standby.



.spaced-list li { margin-bottom: 0.7em; } .spaced-list li:last-child { margin-bottom: 2em; } Key Features 2 SIP [Session Initiation Protocol] accounts, 2 lines and 5-way audio conferencing
Dual-band Wi-Fi 6 on 2.4GHz and 5GHz with 802.11k/r/v roaming support
1.77in 128 x 160 colour LCD
Integrated Bluetooth 5.0 for compatible wireless headsets
HD audio with dual microphones, AEC [Acoustic Echo Cancellation], Noise Shield Technology and AI noise cancellation
Configurable push-to-talk button with support for alarm and paging functions
Accelerometer and emergency button
Rechargeable 1500mAh battery with up to 6 hours talk time and 120 hours standby
USB Type-C fast charging and 3.5mm headset connection
Antibacterial casing to ISO 22196:2011


Key Benefits Wi-Fi 6 and advanced roaming support suit staff who need reliable voice communication while moving around the workplace
AI noise cancellation and Noise Shield Technology help maintain clearer calls in busy working environments
PTT [Push-to-Talk] can be assigned to the configurable button for instant walkie-talkie-style communication, saving time compared to dialling and waiting for a call to connect
Emergency button and accelerometer provide additional hardware for mobile safety and response applications
USB-C fast charging helps return the handset to service quickly between periods of mobile use
GDMS [Grandstream Device Management System] supports centralised remote provisioning and management


The package includes the WP816 phone, Type-C power adapter, charger base, belt clip, 1 lithium-ion battery, M3 screw, wall bracket and Quick Installation Guide.

Comms Express offers the WP816 alongside other Wi-Fi 6 cordless phone options in Grandstream WiFi Cordless Phones including:

WP816 - 1.77in col. display, 2 lines, Bluetooth 5.0, 1500mAh battery, 6h talk time
WP826 - 2.4in col. display, 3 lines, Bluetooth 5.0, 3000mAh battery, 12h talk time
WP836 - 2.8in col. display, 3 lines, Bluetooth 5.4, 3000mAh battery, 10h talk time, IP67/IP69K, 2m drop
Comms Express also offers everything needed to support wider VoIP and network deployments:

Grandstream Phones - a comprehensive choice of Grandstream business voice and communications products
Wireless Access Points - an extensive range from Grandstream and other leading manufacturers for reliable business Wi-Fi coverage
Network Switches - a huge range from Grandstream and other leading manufacturers
*For complete specifications see the documentation tab above

Grandstream WP826 Wi-Fi IP Phone The Grandstream WP826 is a 3-line cordless Wi-Fi 6 IP phone for mobile staff in offices, retail, logistics, healthcare, security and other business environments. Its advanced antenna design and 802.11k/r/v roaming support help maintain reliable wireless connectivity as users move through compatible Wi-Fi networks.

HD audio with dual microphones, Noise Shield Technology and AI noise cancellation supports clearer conversations, while Bluetooth 5.0, push-to-talk, an emergency button and USB-C fast charging add flexibility for mobile working. Its 3000mAh battery provides up to 12 hours of talk time and 240 hours of standby.



.spaced-list li { margin-bottom: 0.7em; } .spaced-list li:last-child { margin-bottom: 2em; } Key Features 3 SIP [Session Initiation Protocol] accounts, 3 lines and 5-way audio conferencing
Dual-band Wi-Fi 6 on 2.4GHz and 5GHz with 802.11k/r/v roaming support
2.4in 240 x 320 colour LCD
Integrated Bluetooth 5.0 for compatible wireless headsets
HD audio with dual microphones, AEC [Acoustic Echo Cancellation], Noise Shield Technology and AI noise cancellation
Configurable push-to-talk button with support for alarm and paging functions
Accelerometer and emergency button
Rechargeable 3000mAh battery with up to 12 hours talk time and 240 hours standby
USB Type-C fast charging
Antibacterial casing to ISO 22196:2011


Key Benefits Wi-Fi 6 with advanced roaming supports reliable voice communication while users move around the workplace
AI noise cancellation and Noise Shield Technology help maintain clearer calls in busy working environments
PTT [Push-to-Talk] can be assigned to the configurable button for instant walkie-talkie-style communication, saving time compared to dialling and waiting for a call to connect
Emergency button and accelerometer add useful hardware for safety-focused mobile deployments
3000mAh battery provides up to 12 hours talk time and 240 hours standby for extended mobile use
GDMS [Grandstream Device Management System] supports centralised remote deployment and management


The package includes the WP826 phone, Type-C power adapter, charger base, belt clip, 1 lithium-ion battery, M3 screw, wall bracket and Quick Installation Guide.

Comms Express offers the WP826 alongside other Wi-Fi 6 cordless phone options in Grandstream WiFi Cordless Phones including:

WP816 - 1.77in col. display, 2 lines, Bluetooth 5.0, 1500mAh battery, 6h talk time
WP826 - 2.4in col. display, 3 lines, Bluetooth 5.0, 3000mAh battery, 12h talk time
WP836 - 2.8in col. display, 3 lines, Bluetooth 5.4, 3000mAh battery, 10h talk time, IP67/IP69K, 2m drop
Comms Express also offers everything needed to support wider VoIP and network deployments:

Grandstream Phones - a comprehensive choice of Grandstream business voice and communications products
Wireless Access Points - an extensive range from Grandstream and other leading manufacturers for reliable business Wi-Fi coverage
Network Switches - a huge range from Grandstream and other leading manufacturers
*For complete specifications see the documentation tab above

Grandstream DP735 Ruggedized DECT Cordless HD Handset The DP735 is a ruggedized DECT cordless IP phone that allows users to mobilize their VoIP network throughout any business, warehouse, retail store and residential environment. It is supported by Grandstream's DP750, DP752 and DP755 DECT VoIP base stations and delivers a combination of mobility and top-notch telephony performance.

Mobility Meets Performance
The DP735 transforms cordless communication by enabling flexible VoIP access across large spaces without sacrificing performance. Whether outdoors or indoors, users benefit from an extended DECT range and long-lasting battery life, making it easy to stay connected throughout the workday.

Seamless Integration
This handset pairs effortlessly with Grandstream DECT base stations and UCM IP PBXs, supporting Zero Config provisioning to simplify deployment. Its compatibility ensures scalable communication for growing teams.

Engineered for Tough Environments
Designed with rugged features and its IP67-rated design ensures durability against water, dust, drops, and harsh cleaning agents—making it ideal for demanding workspaces like warehouses and retail floors. It thrives in harsh conditions and is built to withstand frequent drops, exposure to cleaning chemicals, and the everyday wear of active professional use.

Key Features:

/* normal spacing between all items */ .spaced-list li { margin-bottom: 0.7em; /* adjust as needed */ } /* extra space after the final item */ .spaced-list li:last-child { margin-bottom: 1.2em; /* slightly larger gap */ } Compatible with DP750, DP752, and DP755 DECT VoIP base stations
Range of up to 400 meters outdoors (with DP755) and 50 meters indoors
2.4 inch (240x320) color TFT LCD with 3 programmable soft keys
Offers 65-hour talk time and 650-hour standby time
Supports up to 20 SIP accounts and 20 lines per handset as well as 3-way conferencing
DECT authentication & encryption technology to protect calls & account
Push-to-Talk button and 3.5mm headset jack
Built-in proximity and accelerometer sensors
Automated provisioning options include TR-069 and XML config files
Use with Grandstream's UCM series of IP PBXs for Zero Config provisioning
HD audio to maximize audio quality and clarity; full duplex speakerphone
Ruggedized design, IP67 Rated-Water-proof, dust-proof, cleaning chemical resistant, antimicrobial casing, drop safe from 2.5m


*For complete specifications see the documentation tab above

Grandstream WP836 Wi-Fi Cordless IP Phone The Grandstream WP836 is a ruggedised 3-line Wi-Fi 6 cordless IP phone for mobile staff working in demanding office, retail, logistics, healthcare, security and other business environments. Its IP67/IP69K-rated construction is waterproof, dustproof, cleaning-chemical resistant and drop-safe from 2m, with an antibacterial casing for added protection.

Dual-band Wi-Fi 6 with advanced roaming, Bluetooth 5.4 and a 2.8in colour display support mobile working, while HD audio with dual microphones, Noise Shield Technology and AI noise reduction helps maintain clear conversations. A 3000mAh battery provides up to 10 hours of talk time and 240 hours of standby.



.spaced-list li { margin-bottom: 0.7em; } .spaced-list li:last-child { margin-bottom: 2em; } Key Features 3 SIP [Session Initiation Protocol] accounts, 3 lines and 5-way audio conferencing
Dual-band Wi-Fi 6 with 802.11k/r/v advanced roaming support
2.8in 240 x 320 colour LCD
Integrated Bluetooth 5.4 and USB Type-C fast charging
HD audio with dual microphones, AEC [Acoustic Echo Cancellation], Noise Shield Technology and AI noise reduction
Configurable push-to-talk button
Alarm functions include push-button, man-down, no-movement, running and ambient-sound
Rechargeable 3000mAh battery with up to 10 hours talk time and 240 hours standby
IP67/IP69K-rated waterproof, dustproof and cleaning-chemical resistant construction
Antibacterial casing with 2m drop protection
Key Benefits Rugged IP67/IP69K construction and 2m drop protection suit demanding mobile environments where water, dust and accidental drops are likely
Wi-Fi 6 with advanced roaming helps maintain connectivity as users move through compatible wireless environments
AI noise reduction and Noise Shield Technology help maintain clearer calls in busy or noisy workplaces
PTT [Push-to-Talk] can be assigned to the configurable button for instant walkie-talkie-style communication, saving time compared to dialling and waiting for a call to connect
Configurable alarm functions support mobile safety requirements including push-button, man-down, no-movement, running and ambient-sound events
GDMS [Grandstream Device Management System] supports centralised remote deployment and management
See the WP836 in action and learn how it performs in real-world environments across industries:

The package includes the WP836 phone, Type-C power adapter, charger base, belt clip, 1 lithium-ion battery, M3 screw, wall bracket and Quick Installation Guide.

Comms Express offers the WP836 alongside other Wi-Fi 6 cordless phone options in Grandstream WiFi Cordless Phones including:

WP816 - 1.77in col. display, 2 lines, Bluetooth 5.0, 1500mAh battery, 6h talk time
WP826 - 2.4in col. display, 3 lines, Bluetooth 5.0, 3000mAh battery, 12h talk time
WP836 - 2.8in col. display, 3 lines, Bluetooth 5.4, 3000mAh battery, 10h talk time, IP67/IP69K, 2m drop
Comms Express also offers everything needed to support wider VoIP and network deployments:

Grandstream Phones - a comprehensive choice of Grandstream business voice and communications products
Wireless Access Points - an extensive range from Grandstream and other leading manufacturers for reliable business Wi-Fi coverage
Network Switches - a huge range from Grandstream and other leading manufacturers
*For complete specifications see the documentation tab above