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header-product VoIP Gateway Grandstream HT812 v2 Voice codecs: G.711 G.722 G.729ab
52.49 €

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

VoIP Gateway Grandstream HT812 v2 Photo 1
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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 52.49 €: 27 pcs.
Total available for order: 161 pcs.
Warranty: 2 Years
SKU: 11388626
Manufacturer: Grandstream
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
11.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
14.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.34 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
14.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.79 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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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

Caller ID: The name and/or number of the caller comes up on screen when they ring the phone. You also send your caller ID when you call someone else unless you choose to deactivate it.
Yes
Product colour: The colour e.g. red, blue, green, black, white.
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: What the power source is.
AC
AC input frequency:
50/60
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100-240

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.3533 kg
Height: The measurement of the product from head to foot or from base to top.
28.5 mm
Depth: The distance from the front to the back of something.
90 mm
Width: The measurement or extent of something from side to side.
130 mm

Operational conditions

Operating relative humidity (H-H):
10 - 90
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-10 - 60
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 50

Certificates

Certification:
FCC/CE/RCM, K.21

Ports & interfaces

Ethernet LAN (RJ-45) ports: Number of Ethernet LAN (RJ-45) ports (connecting interfaces) in the device. Ethernet LAN (RJ-45) ports allow a computer to connect to the ethernet.
2

Network

Security algorithms: Security algorithms are used to provide authentication, cipher key generation, integrity and radio link privacy to users on mobile networks. The security algorithms supported are the ones that can be used with this product.
SIPS, SRTP, TLS
Quality of Service (QoS) support:
Yes

Audio

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

Phone features

Conference call:
Yes
Caller ID: The name and/or number of the caller comes up on screen when they ring the phone. You also send your caller ID when you call someone else unless you choose to deactivate it.
Yes
Call waiting:
Yes

Design

Product colour: The colour e.g. red, blue, green, black, white.
Black

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
EU3 27 11.08.2026
52.49 €
WH321 30 07.08.2026 Best delivery
57.99 €
WH355 30 11.08.2026
60.49 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
EU6 2 11.08.2026
74.49 €
EU6 71 11.08.2026
74.49 €
52.49 €
Stock: 27
Delivery Date: 11.08.2026
Warehouse: EU3
57.99 €
Stock: 30
Delivery Date: 07.08.2026 Best delivery
Warehouse: WH321
60.49 €
Stock: 30
Delivery Date: 11.08.2026
Warehouse: WH355
72.99 €
Stock: 1
Delivery Date: 11.08.2026
Warehouse: EU85
Available only for legal entities
74.49 €
Stock: 2
Delivery Date: 11.08.2026
Warehouse: EU6
74.49 €
Stock: 71
Delivery Date: 11.08.2026
Warehouse: EU6

Customer reviews

Customer questions

FAQ

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

The price is 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 161 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 11.08.2026 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: caller id, 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.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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