Best Grandstream in 2026

Integrated 2 pstn trunk fxo ports, 2 analog telephone FXS ports with lifeline capability in case of power outage, and up to 50 SIP trunk accounts

1 GHz arm cortex A8 application processor, large memory (512MB ddr Ram, 4GB nand flash), and dedicated high-performance multi-core dsp array for advanced voice processing

Gigabit network port(s) with integrated PoE, USB, SD card; integrated NAT router with advanced QoS support

6 dual-color line keys (with 6 SIP accounts), 5 programmable context-sensitive soft keys, up to 5-way conferencing, and 24 dual-color BLF extension keys

Dual switched auto-sensing 10/100/1000Mbps Gigabit network ports, PoE, Bluetooth, USB, and EHS (Electronic Hook-Switch)

Automated provisioning using TR-069 or AES encrypted XML configuration file, TLS/SRTP/HTTPS for advanced security and privacy protection

12 lines, 6 SIP accounts, 5 soft keys and 5-way voice conferencing

48 on-screen digitally customizable BLF/speed-dial keys

4.3 inch (480x272) color-screen LCD

Dual-band Wi-Fi with efficient antenna design and advanced roaming support

Bluetooth for syncing headsets and mobile devices (contacts and call transferring)

HD voice & dual mic design with aec and noise Shield technology

Supports 2 SIP profiles through 2 FXS ports and dual Gigabit ports

Includes a built-in NAT router which can handle routing speeds up to 100MBps

TLS and SRTP security encryption technology to protect calls and accounts

Supports 2 SIP profiles through 2 FXS ports and a single 10/100Mbps port

Tls and SRTP security encryption technology to protect calls and accounts

Automated provisioning options include TR-069 and XML Config files

Grandstream ATAs are trusted and deployed by some of the largest service providers in the world.

Supports 1 SIP profile through a single FXS port and a single 10/100Mbps port

TLS and SRTP security encryption technology to protect calls and accounts

13248 pixel backlit graphical LCD display.

2 dual-color line keys (with 2 SIP accounts and up to 2 call appearances), 3 XML programmable context-sensitive soft keys, 3-way conference

HD wideband audio, superb full-duplex hands-free speakerphone with advanced acoustic echo cancellation and excellent double-talk performance.

8 lines, 4 SIP counts, 4 XML programmable context-sensitive soft keys

Dual switched, auto-sensing gigabit ports, built-in poe, USB port

32 digitally programmable and customizable blf/speed-dial keys

3 SIP accounts, 3 line keys, 4-way conferencing, 3 XML programmable context-sensitive soft keys

HD audio on speakerphone and handset

Dual-switched Gigabit ports, integrated PoE

Up to 10 SIP accounts per system

3 way audio Conferencing for Easy conference calls

Automated provisioning options include TR-069 and XML config files

Will ONLY work with Grandstream DP750 Base Station already installed

5 dp720 handsets are supported by each dp750

Supports up to 10 sip accounts per handset

The phone only works with VoIP

2 dual-color line keys (with 2 SIP accounts and up to 2 call appearances), 3 XML programmable context-sensitive soft keys, 3-way conference

HD wideband audio, superb full-duplex hands-free speakerphone with advanced acoustic echo cancellation and excellent double-talk performance.

2 dual-color line keys (with 2 SIP accounts and up to 2 call appearances), 3 XML programmable context-sensitive soft keys, 8 BLF keys, 3-way conference, multi-language support

Dual-switched Gigabit network ports, integrated PoE, HD wideband audio, full-duplex hands-free speakerphone with advanced acoustic echo cancellation, Electronic Hook Switch (EHS) with Plantronics headsets

132 x 48 pixel backlit graphical LCD display

2.33 Gaps wireless throughput and 2 Gigabit wireline ports

Dual-band 4×4: 4 MU-MIMO technology

Self power adaptation upon auto detection of PoE or PoE+

Sold as 1 Each.

Enjoy the internet to its max and get cost-effective voice communication to areas like lobbies, guest rooms, and conference halls. Uses VoIP technology to transfer audio signals over the Internet while circumventing high toll charges by telephone companies.

With PoE port, transfer data and power on a single cable to places where a power outlet is absent.

Supports 4 SIP profiles through 4 FXS ports and dual Gigabit ports Includes a built-in Nat router which can handle routing speeds up to 100Mbps. Include TR-069 and XML Confit files Failover SIP server automatically switches to secondary server if Main server loses connection

Tells and SRTP security encryption technology to protect calls and accounts Automated provisioning options

Black

Dual-band Wi-Fi with efficient antenna design and advanced roaming support

2 SIP accounts, 2 lines

HD voice & dual MIC design with AEC and Noise Shield Technology

1 sip account, 2 line keys, 3-way conferencing, 3 XML programmable context-sensitive keys

Dual-switched 10/100 mbps ports

Support for Plantronics headsets

Large 128x384 graphic LCD providing feature-rich graphics

Daisy-chain 4 modules for up to 160 programmable buttons

2 page switch keys which allows up to 40 extensions per extension module

Smb IP pbx with 8 fxo and 2 FXS ports

Dual Gigabit RJ45 ports with integrated PoE Plus (IEEE 802.3At-2009)

Zero configuration provisioning of Grandstream SIP endpoints

The DP720 is a DECT cordless VoIP phone that allows users to mobilize their VoIP network throughout any business, warehouse, retail store and residential environment

The DP720 touts a suite of top-notch telephony features including support for up to 10 SIP accounts per handset, full HD audio, a 3.5mm headset jack, multi-language support, a speakerphone and more

When paired with Grandstream’s DP750 DECT Base Station, the DP720 offers a powerful DECT VoIP handset that allows any business or residential user to create a cordless VoIP solution

Android 7.0 video phone with 16 lines/SIP accounts

8” 1280x800 capacitive touch screen IPS LCD, 2 megapixel camera with privacy shutter, dual microphones

Powerful hardware design to support 3-way local conferencing with 1080p30 H.264 and 48KHz full-band audio (Opus)

Supports a range of up to 400 meters outdoors and 50 meters indoors when used with the DP752 (300 meters outdoors when used with DP750)

2.4 inch (240x320) color LCD with 3 programmable soft keys

Offers 40-hour talk time and 500-hour standby time

The DP720 is a DECT cordless VoIP phone that allows users to mobilize their VoIP network throughout any business, warehouse, retail store and residential environment.

The DP720 touts a suite of top-notch telephony features including support for up to 10 SIP accounts per handset, full HD audio, a 3.5mm headset jack, multi-language support, a speakerphone and more.

The DP750 is a powerful DECT VoIP base station that pairs with up to 5 of Grandstream’s DP720 DECT handsets to offer mobility to business and residential users.

2.33Gbps wireless throughput and 2x Gigabit wireline ports

Support 200+ concurrent Wi-Fi client devices

Embedded controller can manage up to 50 local GWN series APs; GWN. Cloud offers unlimited AP management

Sold as 1 Each.

2000 names and numbers directory lets you keep track of a multitude of contacts and customers. Wireless technology provides unparalleled mobility.

Adds four lines to improve office communication. LCD display for easy viewing.

This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com

13248 pixel backlit graphical LCD display.

2 dual-color line keys (with 2 SIP accounts and up to 2 call appearances), 3 XML programmable context-sensitive soft keys, 3-way conference

Grandstream UCM6204 IP PBX with 4 FXO + GXP2170 4-UNITS IP Phone

The GXP2170 is a powerful enterprise-grade IP phone features up to 12 line keys/line appearances and 6 SIP accounts using a 4.3 inch color display LCD and full HD audio.

The GXP2170 supports the fastest possible connection speeds with dual Gigabit network ports, features integrated PoE and includes built-in Bluetooth for syncing with mobile devices and Bluetooth headsets.

3 SIP accounts, 3 line keys, 4-way conferencing, 3 XML programmable context-sensitive soft keys, HD audio on speakerphone and handset

Up to 1000 contacts, call history up to 200 records

Dual-switched Gigabit ports, integrated PoE