VoIP Gateway Grandstream HT812 v2

Name: VoIP Gateway Grandstream HT812 v2 517502
Brand: Grandstream
SKU: 11388626
Price: 52.99 EUR
Availability: InStock

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VoIP Gateway Grandstream HT812 v2 Voice codecs: G.711 G.722 G.729ab

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Short description

The Grandstream HT812 v2 is a VoIP gateway that supports multiple voice codecs including G.711, G.722, and G.729ab. It features fax compatibility with T.38 and supports various protocols such as TCP/IP and HTTP. The device is powered by AC with a voltage range of 100-240 V and has compact dimensions of 130 mm x 90 mm x 28.5 mm.

Available at price 52.99 €: 1 pcs.

Total available for order: 84 pcs.

Warranty: 2 Years

SKU: 11388626

Manufacturer: Grandstream

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Deliver the order:

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

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From 4.99 € (Weight: 0.34 kg)

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From 1.99 €

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Payment Methods:

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Product information

Description

The Grandstream HT812 V2 is a 2-port analog telephone adapter (ATA) with two FXS ports and an integrated Gigabit NAT router. Designed on Grandstream's established SIP ATA/gateway platform, the HT812 V2 delivers support for multiple voice codecs including G.711, G.722 and G.729ab, T.38 fax compatibility, and common network protocols such as TCP/IP and HTTP. The unit is compact (130 x 90 x 28.5 mm), black in color, weighs 0.3533 kg and is powered from AC (100–240 V).

Advantages

The HT812 V2 provides high-quality voice transmission across varied environments, secure communications with a unique security certificate per unit, and automated provisioning for simplified large-scale deployment and device management. Its integrated Gigabit NAT router ensures reliable network performance for both home and small office installations.

Suitable for

Small office and home VoIP gateway deployment
Migrating analog telephones and fax machines to SIP-based VoIP
Environments requiring secure, managed remote provisioning

Key specifications

Model: Grandstream HT812 V2 (MPN: 517502, EAN: 6947273705321)
Ports: 2 FXS analog ports; integrated Gigabit NAT router
Supported codecs: G.711, G.722, G.729ab
Fax: T.38 fax support
Protocols: SIP, TCP/IP, HTTP
Power: AC 100–240 V
Dimensions: 130 x 90 x 28.5 mm; Weight: 0.3533 kg; Color: Black

How to use

Connect analog phones or a fax machine to the two FXS ports, link the device to your network via the Gigabit Ethernet port, and apply power using the included AC adapter. Configure SIP account settings either through the web-based interface or by automated provisioning from a supported provisioning server. Verify codec and T.38 settings as needed for voice and fax interoperability.

Usage recommendations

For stable voice quality and fax reliability, use Quality of Service (QoS) settings on your network, keep firmware up to date, and enable the device’s security certificate and encryption features when connecting to public or untrusted networks.

Specifications

Weight:: 0.3533 kg
Product colour:: Black

All features

Supported protocols:: TCP/IP/UDP, RTP/RTCP (RFC1889, 1890), HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, Telnet, STUN (RFC3489, 5389), SIP (RFC3261), SIP over TCP/TLS, SRTP, SNMP, TR-069, IMS/3GPP, IPoE
Output voltage:: 12
Fax compatibility:: T.38
Modem (RJ-11) ports:: 2
Output current:: 0.5 A
Power source type:: AC
AC input frequency:: 50/60
AC input voltage:: 100-240

Phone features

Conference call:: Yes
Caller ID:: Yes
Call waiting:: Yes

Audio

Voice codecs:: G.729ab, VAD, OPUS, G.726-32, G.722, G.711, CNG, G.723

Ports & interfaces

Ethernet LAN (RJ-45) ports:: 2

Network

Security algorithms:: TLS, SRTP, SIPS
Quality of Service (QoS) support:: Yes

Weight & dimensions

Weight:: 0.3533 kg
Height:: 28.5 mm
Width:: 130 mm
Depth:: 90 mm

Operational conditions

Operating relative humidity (H-H):: 10 - 90
Storage temperature (T-T):: -10 - 60
Operating temperature (T-T):: 0 - 50

Certificates

Certification:: FCC/CE/RCM, K.21

Design

Product colour:: Black

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Instructions

mmo_124765936_1741608210_4791_149700.pdf

Description

Instructions

mmo_124765936_1741608210_4791_149700.pdf

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Warehouse	Stock	Delivery to the store	Store Price
EU3	1	02.07.2026 Best delivery	52.99 €
WH354	9	09.07.2026	59.99 €
EU85	1	02.07.2026 Best delivery	67.99 €

Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
EU6	2	02.07.2026 Best delivery	73.49 €
EU6	71	02.07.2026 Best delivery	74.49 €

52.99 €

Stock: 1

Delivery Date: 02.07.2026 Best delivery

Warehouse: EU3

59.99 €

Stock: 9

Delivery Date: 09.07.2026

Warehouse: WH354

67.99 €

Stock: 1

Delivery Date: 02.07.2026 Best delivery

Warehouse: EU85

Available only for legal entities

73.49 €

Stock: 2

Delivery Date: 02.07.2026 Best delivery

Warehouse: EU6

74.49 €

Stock: 71

Delivery Date: 02.07.2026 Best delivery

Warehouse: EU6

Customer reviews

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Customer questions

FAQ

How much does the VoIP Gateway Grandstream HT812 v2 cost, and is it available for purchase?

The price is 52.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 84 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Grandstream products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Grandstream service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for VoIP Gateway Grandstream HT812 v2?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

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