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- USA
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Grandstream SIP ATA FXO/ FXS Gateway | HT-813Bridge Your Analog and VoIP Worlds with the Grandstream HT813 The Grandstream HT813 is a powerful and compact hybrid analog telephone adapter (ATA) designed to seamlessly integrate your traditional analog telephone devices with a modern VoIP network. This versatile gateway features one analog telephone FXS port and one PSTN line FXO port, enabling you to leverage the benefits of VoIP while maintaining a connection to your existing landline. The HT813
Bridge Your Analog and VoIP Worlds with the Grandstream HT813
The Grandstream HT813 is a powerful and compact hybrid analog telephone adapter (ATA) designed to seamlessly integrate your traditional analog telephone devices with a modern VoIP network. This versatile gateway features one analog telephone FXS port and one PSTN line FXO port, enabling you to leverage the benefits of VoIP while maintaining a connection to your existing landline. The HT813 is the perfect solution for small businesses and home users looking to upgrade to a flexible and cost-effective communication system.
Key Features and Benefits
- Hybrid Connectivity: Equipped with both an FXS port to connect an analog phone or fax machine and an FXO port for a PSTN line, the HT813 offers a unique and flexible communication solution.
- Lifeline Support: In the event of a power outage, the HT813 provides lifeline support by automatically relaying the FXS port to the FXO port, ensuring you can still make and receive calls on your traditional landline.
- Advanced VoIP Functionality: Supports 2 SIP profiles, 3-way voice conferencing per port, and a failover SIP server that automatically switches to a secondary server if the main one loses connection.
- Reliable Fax over IP: Features support for the T.38 Fax protocol, ensuring reliable and efficient faxing over your IP network.
- Robust Security: Your calls and accounts are protected with strong AES encryption and a unique security certificate per unit.
- Easy Provisioning and Management: Offers automated and secure provisioning options using TR-069, simplifying deployment and management.
Technical Specifications
| Interfaces | One (1) RJ11 FXS port, One (1) RJ11 FXO PSTN line port with lifeline support |
| Network Interface | Two (2) 10/100Mbps ports (RJ45) with integrated NAT router |
| LED Indicators | POWER, LAN, WAN, FXS, FXO |
| Factory Reset Button | Yes |
| 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.722, G.723.1, G.729A/B, G.726, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation |
| Fax over IP | T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through |
| Short/Long Haul Ring Load | 3 REN: Up to 1km on 24 AWG |
| Caller ID | Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID |
| Disconnect Methods | Busy Tone, Polarity Reversal/Wink, Loop Current |
| Network Protocols | TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP (RFC3261), SIP over TCP/TLS, SRTP, TR-069 |
| QoS | Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) |
| DTMF Method | In-audio, RFC2833 and/or SIP INFO |
| Provisioning and Control | HTTP, HTTPS, TELNET, TFTP, TR-069, secure and automated provisioning using AES encryption |
| Security | SRTP, TLS/SIPS/HTTPS |
| Physical | Universal Power Supply: Input: 100-240VAC, 50-60Hz, Output: 12V/0.5A |
| Environmental | Operating: 32º – 104ºF or 0º – 40ºC, Storage: 14º – 140ºF or -10º – 60ºC, Humidity: 10 – 90% Non-condensing |
| Dimensions and Weight | 25mm x 115mm x 75mm (H x W x D) |
| Compliance | FCC, CE, RCM |
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
4.4 ★★★★★
Based on 692 reviews
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Product Reviews
★★★★★ 5
Great quality for the price!
Color: Glistening Bronze
This body shimmer oil gives a really nice sun-kissed glow without looking overly glittery. The shimmer is subtle and smooth, so it catches the light in a flattering way instead of looking chunky or artificial. It works especially well on areas like the shoulders, collarbones, and legs for that summer glow effect.
The texture is lightweight and absorbs nicely into the skin. It doesn’t feel greasy, and it leaves the skin feeling soft and moisturized after applying. The bronze shade adds a warm tone that enhances natural skin color while still looking natural.
It’s also pretty versatile. You can use it on its own for a glowing finish or mix a small amount with foundation, lotion, or sunscreen to add a bit of radiance. It blends easily and spreads evenly, so a little goes a long way. The result is smooth, hydrated skin with a subtle luminous shine that looks great in sunlight.
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Reviewed in the United States on March 15, 2026
★★★★★ 4
Glowy but not sure about the spf
Color: Glistening Bronze
My first impression was that this works more like a basic body shimmer than anything else. The Glistening Bronze shade gives a noticeable glow, especially on arms and shoulders. It spreads easily and adds a warm shimmer in the light, but the overall effect feels pretty simple and more cosmetic than skincare focused.
In use, the oil blends in smoothly and feels lightweight on the skin. It does leave a bit of moisture behind, similar to a light body oil, and the shimmer shows up well outdoors. The bronze tone is fairly deep, so it seems better suited for medium to darker skin tones or anyone who wants a stronger bronzed glow. The product mentions SPF 45, but there is very little information about the sun protection side of it, so I personally treat this more like a shimmer oil than a sunscreen.
Overall, this is fine if you are mainly looking for a body shimmer that adds glow and a bronzed look. It does the job of giving skin a subtle shine and a bit of hydration, but it does not stand out as anything particularly special. I would recommend it mostly for people who want a simple shimmering body oil rather than relying on it for sun protection.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Glamorize your sunny day outing with this shimmer suntan protection
Color: Glistening Bronze, Color: Glistening Bronze
This body shimmer oil has a natural glow luminizer in it. It has an SPF of 45 for sun protection factor. This went on smoothly and easily and was light and did not feel greasy. It felt like fancy suntan lotion like no other I've ever tried before. This just adds a little glamor to your sunny day outing
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Glowy, Lightweight Summer Shine
Color: Glistening Bronze, Color: Glistening Bronze
This gives a really pretty sun-kissed glow without feeling greasy or heavy on the skin. The shimmer is noticeable but not over-the-top, and it blends nicely for a smooth, radiant finish. I also like that it has SPF, which makes it perfect for everyday summer use.
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Reviewed in the United States on March 17, 2026
★★★★★ 3
This Oil Definitely Glitters!
Color: Glistening Bronze, Color: Glistening Bronze
I really wanted to love this shimmer oil, but it's unfortunately not my favorite. I love that it has SPF! That is a big win for me! The oil is also very good at hydrating my skin, which I appreciate. My problem comes with the shimmer of the product. The glitter in it is too big for my liking. With it being called a shimmer oil, I expected tiny glitter that softly shimmers like shimmer powders, lotions, and oils usually do. But this stuff glit-ters! And because it's bigger sized glitter, it's a lot easier to see when it gets all over everything like clothes, furniture, spouses and children. If the shimmering glitter in this was just smaller and softer, I would love this for summer time to use on my legs and arms. But it's unfortunately just not my favorite and I don't think I'll be using it anymore.
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Reviewed in the United States on May 10, 2026