Grandstream Networks HT818 VoIP telephone adapter
Grandstream Networks HT818, G.711, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC, T.38, LAN, Power, WAN, FCC/CE/RCM, ADSL,...Read full description ↓
| Date | Price |
|---|---|
| 28 May 2026 | £116.29 |
| 14 June 2026 | £115.91 |
| 23 June 2026 | £117.68 |
| 2 July 2026 | £117.68 |
| 8 July 2026 | £117.68 |
| 19 July 2026 | £117.68 |
| 27 July 2026 | £153.49 |
| 4 August 2026 | £117.68 |
| 7 August 2026 | £153.49 |
| 12 August 2026 | £117.68 |
| 15 August 2026 | £117.68 |
| 18 August 2026 | £153.49 |
| 21 August 2026 | £153.49 |
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Product Information
The HT818 is a powerful 8-port VoIP gateway with 8 FXS ports and an integrated Gigabit NAT router. Built for users looking for a strong analog-to-VoIP converter, it features Grandstream’s market-leading SIP ATA/gateway technology with millions of units successfully deployed worldwide. This powerful gateway carries exceptional voice quality in various application environments, strong encryption with unique security certificate per unit, automated provisioning for volume deployment and device management, and outstanding network performance for enterprise use.
- Supports 2 SIP profiles and 8 FXS ports
- Strong AES encryption with security certificate per unit
- Automated & secure provisioning options using TR069
- 3-way voice conferencing per port
- Exceptional voice quality with wide-band HD codec
- Supports T.38 Fax for reliable Fax-over-IP
- Supports dual Gigabit network ports
- High performance NAT router
Product
- Name
- Grandstream Networks HT818 VoIP telephone adapter
- Category
- VoIP Telephone Adapters
- Brand
- Grandstream Networks
Protocols
- Supported network protocols
- TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP (RFC3261), SIP TCP/TLS, SRTP, TR-069
Security
- Security algorithms
- AES, HTTPS, SIPS, SSL/TLS
Weight & dimensions
- Dimensions (WxDxH)
- 120 x 180 x 36 mm
- Weight
- 356 g
Call management
- Caller ID
- Yes
- Conference call
- Yes
- Call waiting
- Yes
Network
- xDSL connection type
- ADSL
- Quality of Service (QoS) support
- Yes
Ports & interfaces
- Ethernet LAN (RJ-45) ports
- 2
- Modem (RJ-11) ports
- 8
Operational conditions
- Operating temperature (T-T)
- 0 - 40 °C
- Storage temperature (T-T)
- -10 - 60 °C
- Operating relative humidity (H-H)
- 10 - 90%
Features
- Voice codecs
- G.711, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC
- Fax compatibility
- T.38
- Reset button
- Yes
- LED indicators
- LAN, Power, WAN
- Certification
- FCC/CE/RCM
Logistics data
- Harmonized System (HS) code
- 85177900
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