Grandstream
Grandstream SIP ATA 8 Port FXS Gateway | HT-818
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Bridge Your Analog Devices to a Powerful VoIP Network
The Grandstream HT818 is a high-performance 8-port VoIP gateway designed for users who need to integrate analog telephones, fax machines, and other legacy telephony equipment into a modern VoIP network. This powerful device features 8 FXS ports and an integrated Gigabit NAT router, making it an ideal solution for both residential and office environments. Built on Grandstream's market-leading SIP ATA/gateway technology, the HT818 delivers exceptional voice quality, robust security, and outstanding network performance.
Seamless Integration and Crystal-Clear Communication
Experience superior audio with the HT818's support for a wide range of voice codecs, including the wideband HD codec for crystal-clear conversations. It supports 3-way voice conferencing per port and advanced telephony features like caller ID, call waiting, and call forwarding. For businesses that still rely on faxing, the HT818 includes T.38 Fax-over-IP support for reliable and efficient fax transmission.
Robust Security and Simplified Management
Security is paramount in modern communication. The HT818 employs strong AES encryption with a unique security certificate per unit to protect your calls and accounts. Automated and secure provisioning options, including TR-069, simplify mass deployment and device management. The dual Gigabit network ports ensure a high-performance connection, and the integrated NAT router provides efficient routing capabilities.
Key Features at a Glance:
- Supports 2 SIP profiles and 8 FXS ports.
- Dual 10/100/1000Mbps Gigabit network ports.
- Exceptional voice quality with a wideband HD codec.
- 3-way voice conferencing per port.
- Supports T.38 Fax for reliable Fax-over-IP.
- Strong AES encryption for enhanced security.
- Automated provisioning with TR-069.
- High-performance NAT router.
Technical Specifications
| Interfaces | |
| Telephone Interfaces | Eight (8) RJ11 FXS ports. |
| Network Interface | Two (2) 10/100/1000Mbps RJ45 ports. |
| LED Indicators | POWER, NET1, NET2, PHONE1, PHONE2, PHONE3, PHONE4, PHONE5, PHONE6, PHONE7, PHONE8. |
| Factory Reset Button | Yes. |
| 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.722, G.723.1, G.729A/B, G.726-32, 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 | 2 REN, up to 1km on 24AWG line. |
| Caller ID | Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID. |
| Disconnect Methods | Busy Tone, Polarity Reversal/Wink, Loop Current. |
| Signaling | |
| Network Protocols | TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, SIP (RFC3261), STUN, SRTP, TR-069, TLS, L2TP, OpenVPN |
| 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, SSH, TFTP, TR-069, secure and automated provisioning using AES encryption. |
| Security | |
| Media | SRTP/TLS/SIPS/HTTPS |
| Physical | |
| Universal Power Supply | Input: 100-240VAC, 50-60Hz; Output: 12V/1.5A. |
| Environmental | Operational: 32º – 123ºF or 0º – 50ºC; Storage: 14º – 140ºF or -10º – 60ºC; Humidity: 10 – 90% Non-condensing. |
| Dimension and Weight | (L)180mm x (W)120mm x (H)36mm, 356g. |
| Compliance | |
| Compliance | FCC/CE/RCM. |
Manufacturer Technical Data
| Product Spec Sheet |
 Download |
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Frequently Asked Questions
Answers to frequently asked questions
Does NexGen Computing conduct regular security audits?
Yes, we regularly conduct security audits and vulnerability assessments to identify and address potential security weaknesses, maintaining a high level of security and compliance with industry standards.
How can I stay informed about policy changes?
We reserve the right to update or modify our policies at any time. Changes will be posted on our website, and your continued use of our products and services constitutes acceptance of any changes.
Where can I find more information or ask additional questions?
For more information or assistance, please visit our website at www.nexgencomputing.co.za or contact us at support@nexgencomputing.co.za.
How does NexGen Computing handle shipping and delivery?
Orders are processed promptly, with delivery details provided at checkout. Tracking information will be emailed once your order ships.
What is the return and refund policy?
Refunds are typically issued for defective or incorrect items within 14 days of receipt. For detailed information, please refer to our Refund Policy.
Is my payment information secure?
Yes, all payments made on our site are processed securely on our domain using industry-standard security measures. Sensitive data, such as credit card numbers, are processed by PCI-compliant payment processors like Yoco, Paystack, and Peach Payments.
