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GrandstreamHT ATA 812

Q: Does it work with google voice? if it does then how hard is it to setup with google voice as compared to obi devices?

Yes googlevoice can be added Get an account at https://www2.pbxes.com/ add googlevoice trunks to pbxes.com and setup extensions on HT812 more details here http://nerdvittles.com/?p=26971

Q: Will this convert digital voip signal to analog on a stand alone caller id unit? (connected to a point of sale system).

Yes. You will connect the device to your internal or external SIP service, then it will ring and pass through the caller ID between the rings, just like a regular phone line. Also, the caller ID is enabled by default.

Q: What firmware and hardware rev will I get when I purchase it today?

Dear Customer, Hardware Version: V4.0A Part Number -- 9610005040A Software Version: Program -- 1.0.35.4 Bootloader -- 1.0.35.1 Core -- 1.0.35.3 Base -- 1.0.35.4 CPE -- 1.0.4.5 Best Regards, Flytec Computers.

Q: Can this be set up to connect as an openvpn client?

OpenVPN client support was added to the Grandstream HT812 firmware version 1.0.29.8 and later. This means that if your device is running firmware version 1.0.29.8 or later, you should be able to set up the HT812 as an OpenVPN client.

4.4/5

Product ID: 275914084

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Details

Brand
Grandstream
Model Name
HT812
Special Feature
WPS
Compatible Devices
Personal
Recommended Uses For Product
Security
Included Components
1

⚡28V Voltage for stable power delivery

📏Compact 22.86x33.02x7.11 cm design

🔌2 Ethernet Ports for seamless connectivity

Description

🔗 Connect smarter, work faster with GrandstreamHT ATA 812

SLEEK COMPACT - Modern, space-saving design fits perfectly in any professional setup
PREMIUM PACKAGING - Arrives ready to impress—because first impressions matter
ROBUST 28 V STABILITY - Consistent voltage guarantees uninterrupted communication
PLUG PLAY SIMPLICITY - Effortless setup to get you connected in minutes
DUAL ETHERNET POWERHOUSE - Two ports ensure reliable, high-speed VoIP calls without interruption

The GrandstreamHT ATA 812 is a compact, professional-grade VoIP gateway featuring dual Ethernet ports and stable 28V power support. Designed for easy maintenance and quick setup, it delivers reliable, high-quality voice communication in a sleek, space-saving form factor—perfect for modern office environments.

Specifications

Brand	Grandstream
Product Dimensions	22.86 x 33.02 x 7.11 cm; 290 g
Batteries	1 AAAA batteries required.
Item model number	HT-812
Manufacturer	Grandstream
Color	Black
Wireless Carrier	Unlocked
Number of Ethernet Ports	2
Voltage	28 Volts
Operating System	RouterOS
Are Batteries Included	No
Lithium Battery Energy Content	2.6 Watt Hours
Lithium Battery Packaging	Batteries contained in equipment
Lithium Battery Weight	5 g
Number Of Lithium Ion Cells	4
Item Weight	290 g

Have a Question? See What Others Asked

Does it work with google voice? if it does then how hard is it to setup with google voice as compared to obi devices?

Will this convert digital voip signal to analog on a stand alone caller id unit? (connected to a point of sale system).

What firmware and hardware rev will I get when I purchase it today?

Can this be set up to connect as an openvpn client?

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.