# VoIP telephone adapter Grandstream HT841 voice codecs G.711 G.723.1 G.726 G.729A G.729B

**URL:** https://aio.lv/en/product--grandstream-ht841--10810635
**Data updated:** 2025-12-30 12:42 (EET)
**Category:** VoIP Gateways
**Manufacturer:** Grandstream
**Manufacturer code:** HT841
**EAN:** 6947273704775
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 150.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 124.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--grandstream-ht841--10810635

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Grandstream HT841 VoIP telephone adapter supports multiple voice codecs including G.711, G.723.1, G.726, G.729A, and G.729B. It features fax compatibility with T.38 and has LED indicators for LAN, Power, and WAN. Security is ensured with AES, HTTPS, SIPS, and SSL/TLS. Compact dimensions of 100 mm width, 28 mm depth, and 190 mm height make it suitable for various setups.

## Long description

The Grandstream HT841 VoIP telephone adapter provides a compact, easy-to-deploy gateway between traditional PSTN lines and IP-based phone systems. It supports multiple voice codecs (G.711, G.723.1, G.726, G.729A, G.729B), fax over T.38, and includes LED status indicators for LAN, WAN and power. Security features include AES encryption, HTTPS, SIPS and SSL/TLS. The device is designed to connect analog phones or PBX trunks to hosted or on-premise IP PBX networks, enabling seamless integration of existing telephony into VoIP environments.
Advantages
The HT841 combines FXO/FXS gateway functionality with broad codec support to ensure interoperability and good voice quality across networks. Automated provisioning options simplify deployment across multiple locations, while built-in security protocols protect signaling and media. Compact dimensions make it suitable for desk- or rack-adjacent installation without occupying much space.
Suitable for
Connecting analog phones or fax machines to an IP PBX
Integrating PSTN lines with hosted or on-premise VoIP systems
Small and medium business branch offices needing SIP trunks or analog extension support
Deployments that require T.38 fax relay and multiple codec compatibility
Key specifications
Model: Grandstream HT841 (MPN: HT841, EAN: 6947273704775)
Voice codecs: G.711, G.723.1, G.726, G.729A, G.729B
Fax: T.38 support
Ports: FXO/FXS gateway functionality (as per HT8x1 series)
Security: AES, HTTPS, SIPS, SSL/TLS
Indicators: LAN, WAN, Power LEDs
Dimensions: 100 mm (W) × 28 mm (D) × 190 mm (H)
How to use
Connect the HT841 to your network via the WAN/LAN Ethernet ports and attach the analog phone or PSTN trunk to the appropriate FXS/FXO port. Use the web-based configuration interface or supported provisioning server to enter SIP account details and choose preferred codecs. Enable T.38 for fax devices if required. Verify LED indicators to confirm network and power status, then perform test calls to confirm audio paths and codec negotiation.
Usage recommendations
For best voice quality, prioritize lower-latency codecs supported by your network and ensure QoS is configured on routers and switches. Use secure transport (SIPS/HTTPS) for provisioning and signaling when connecting to remote or hosted IP PBX providers. Enable T.38 for reliable fax transmissions and keep firmware updated to maintain interoperability and security.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 120 x 180 x 36 |
| Weight | 0.46 kg |
| Security algorithms | SSL/TLS, SIPS, HTTPS, AES |
| Operating relative humidity (H-H) | 10 - 90 |
| Storage temperature (T-T) | -10 - 60 |
| Operating temperature (T-T) | 0 - 40 |
| Height | 190 mm |
| LED indicators | WAN, Power, LAN |
| Width | 100 mm |
| Depth | 28 mm |
| Conference call | Yes |
| Voice codecs | G.729A, G.729B, G.726, G.723.1, G.711 |
| Fax compatibility | T.38 |
| Modem (RJ-11) ports | 4 |
| Ethernet LAN (RJ-45) ports | 2 |
| Caller ID | Yes |
| Call waiting | Yes |
| Quality of Service (QoS) support | Yes |
| Reset button | Yes |

## FAQ

### How much does the VoIP telephone adapter Grandstream HT841 cost, and is it available for purchase?

The price is 150.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 08.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can VoIP telephone adapter Grandstream HT841 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for VoIP telephone adapter Grandstream HT841?

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.

## Image

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