Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Grandstream HT841 4-Port FXO Gateway with Gigabit NAT RouterBridge Your Analog Phone Lines to a Modern VoIP Network The Grandstream HT841 is a high performance 4 port FXO gateway designed for businesses of all sizes looking to integrate their traditional analog telephone lines with an IP based VoIP system. This powerful device allows you to seamlessly connect multiple office locations to any hosted or on premise IP PBX network, simplifying your transition to VoIP. With the HT841, you can leverage the cost
Bridge Your Analog Phone Lines to a Modern VoIP Network
The Grandstream HT841 is a high-performance 4-port FXO gateway designed for businesses of all sizes looking to integrate their traditional analog telephone lines with an IP-based VoIP system. This powerful device allows you to seamlessly connect multiple office locations to any hosted or on-premise IP PBX network, simplifying your transition to VoIP. With the HT841, you can leverage the cost savings and advanced features of VoIP telephony while preserving your investment in existing analog infrastructure.
Key Features & Benefits
- Seamless Connectivity: Features 4 RJ11 FXO ports to connect your PSTN lines and 1 RJ11 FXS port for an analog telephone or fax machine.
- High-Performance Networking: Equipped with two Gigabit (10/100/1000Mbps) RJ45 ports and a built-in high-performance NAT router for efficient traffic handling.
- Power Outage Protection: Lifeline support ensures that in the event of a power failure, the FXS port is hard-relayed to an FXO port, maintaining basic call functionality.
- Advanced Telephony Features: Supports 3 SIP profiles and a wide range of calling features, including Caller ID, call waiting, call transfer, 3-way conferencing per port, and do not disturb.
- Superior Voice Quality: Delivers crystal-clear conversations with support for numerous voice codecs like G.711, G.729, and Opus, plus advanced line echo cancellation and a dynamic jitter buffer.
- Reliable Fax over IP: T.38 Fax relay support ensures dependable transmission of faxes over your IP network.
- Robust Security: Protect your calls and accounts with strong AES encryption, TLS, and SRTP security protocols.
- Simplified Management: Features automated and secure provisioning options using TR-069, making deployment and ongoing management effortless.
- Failover Support: A failover SIP server automatically switches to a secondary server if the primary one loses connection, ensuring service continuity.
Technical Specifications
| Interfaces | |
| Telephony Interface | 4 x RJ11 FXO ports, 1 x RJ11 FXS port (with lifeline support) |
| Network Interface | 2 x 10/100/1000Mbps RJ45 ports (one with 802.3af PoE-PD support) |
| LED Indicators | Power, NET1, NET2, FXS, FXO |
| Voice, Fax, Modem | |
| Telephony Features | Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference |
| Voice Codecs | G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729, G.726, iLBC, OPUS |
| Fax over IP | T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Pass-through |
| Caller ID | Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID |
| Signaling & Control | |
| Network Protocols | TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, STUN, SIP (RFC3261), SIP over TCP/TLS, SRTP, TR-069 |
| QoS | Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS) |
| Provisioning | HTTP, HTTPS, TFTP, SSH, TR-069, secure and automated provisioning using AES encryption |
| Security | SRTP, TLS/SIPS/HTTPS, AES encryption |
| Physical | |
| Power | DC Input: 12V/1A; PoE Input: 802.3af (48V/0.5A) (Power Supply Not Included) |
| Dimensions | 7.48 x 3.94 x 1.1 in (190 x 100 x 28 mm) |
| Weight | 1.01 lbs (0.458 kg) |
| Environmental | Operating Temperature: 32ºF to 104ºF (0ºC to 40ºC); Humidity: 10% to 90% Non-condensing |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1701 reviews
Sort
Product Reviews
★★★★★ 5
Sturdy and Bright!
Number of Items: 2
Sturdy and bright! Great for the driveway
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 1
Extremely Overpriced
Number of Items: 4
It doesn’t hold charge too long , especially if it’s not on a perfectly bright sunny day without clouds. Even at that , It will only be able to light up for maybe two or three hours at best , and not very bright at all. Construction and materials are of good quality that’s why the one start or else zi would gave given a zero if i could. it is way overpriced for what it is. I am disappointed for what I paid and the amount of production I get from it. Would have returned it if I haven’t installed them and threw away the boxes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
★★★★★ 5
Quality enclosure and battery. Looks great.
Number of Items: 4
Quality metal enclosure. Look great. Two color levels. Charge even in indirect sunlight just fine. I have now bought 12 of these lights.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 1, 2025
★★★★★ 5
Very durable and designed to last a long time
Number of Items: 2
I've had a pair of these lights for 7-8 years and would still be using them with no issues if a naughty racoon hadn't taken an interest in them and broken the glass on one of them. I was delighted to find that the identical looking ones (operate slightly differently) were still available.
They are extremely simple to put together (just screw together the durable metal pieces) and turn them on to the chosen brightness. It couldn't be much simpler.
I also have other Gama Sonic solar lights and they are every bit as good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2024
★★★★★ 3
Gama lights
Number of Items: 4
3 out of 4 are great. One did not work right away. Company send 2 extra battery packs. But still one bad unit. Talking now about options. Company seems to have good customer service. But bad light definetly an issue. 1 of 4 bad.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026