| Product Model |
Grandstream HT818 v2 |
| Product Type |
8-Port FXS VoIP Gateway with Gigabit NAT Router |
| FXS Ports |
8 × RJ11 FXS ports |
| SIP Profiles |
2 SIP profiles |
| Network Interfaces |
2 × 10/100/1000 Mbps Gigabit Ethernet RJ45 |
| Network Function |
Integrated high-performance NAT router |
| Voice Codecs |
G.711, G.722, G.723.1, G.729A/B, G.726-32, iLBC, Opus |
| Echo Cancellation |
Advanced Line Echo Cancellation |
| Voice Features |
Dynamic Jitter Buffer, VAD/CNG, PLC and AGC |
| Conference |
3-way voice conferencing per port |
| Fax Support |
T.38 Group 3 Fax Relay up to 14.4 kbps + G.711 Fax Pass-through |
| Caller ID |
Bellcore Type 1/2, ETSI, BT, NTT and DTMF-based CID |
| Telephony Features |
Call Waiting, Call Transfer, Call Forwarding, Hold, DND, MWI and 3-way Conference |
| DTMF |
In-audio, RFC2833 and/or SIP INFO |
| Security |
AES encryption, TLS/SIPS, HTTPS and SRTP |
| Security Certificate |
Unique security certificate per unit |
| Provisioning |
TR-069, HTTP/HTTPS, FTP/FTPS, SSH and TFTP |
| SIP Protocol |
SIP over UDP/TCP/TLS |
| QoS |
802.1Q VLAN, 802.1p, ToS and DiffServ |
| Failover |
Automatic switching to secondary SIP server if the primary server becomes unavailable |
| Management |
Web Interface, SSH, Syslog and TR-069 |
| Line Testing |
GR-909 Line Testing Functions |
| Power Supply |
100–240 VAC, 50/60 Hz; 12 VDC / 1.5A |
| Dimensions |
36 × 120 × 180 mm |
| Operating Temperature |
0°C to 40°C |
| Key Benefit |
Connects up to 8 traditional analog phones or fax devices to a SIP/VoIP network while providing dual Gigabit Ethernet connectivity and integrated NAT routing |
