Grandstream HT818 V2 8-Port Analog Telephone Adapter
Grandstream HT818 V2 8-Port Analog Telephone Adapter
The Grandstream HT818 V2 is an eight-port ATA for sites with a lot of analog gear to keep. Think a warehouse with analog wall phones, a fax machine, a door phone and an overhead paging amplifier, all moving to one VoIP phone system.
It has two Gigabit network ports and a built-in NAT router, and it's still a desktop box, not a rack unit. For 16 or more ports in a rack, look at the GXW4216 V2.
Quick guide to the two port types: an FXS port provides dial tone, so you plug in an analog phone, fax machine, door phone or overhead paging amplifier. An FXO port takes dial tone, so you plug in an analog phone line from the phone company. Our Crosstalk PBX appliances are pure VoIP with no analog ports, so an ATA or gateway is how you bring analog devices or phone lines onto the system.
Specifications
| Phone ports | 8x FXS (RJ11) |
|---|---|
| Phone line ports (FXO) | None |
| Network | 2x 10/100/1000Mbps Ethernet, built-in NAT router |
| SIP profiles | 2 |
| Ring load | 2 REN, up to 1km on 24 AWG |
| Fax | T.38 fax relay up to 14.4kbps, falls back to G.711 pass-through |
| Codecs | G.711, G.722 (HD), G.723.1, G.729A/B, G.726-32, iLBC, Opus |
| Security | TLS and SRTP |
| Provisioning | TR-069, XML config files, GDMS, zero config with Grandstream UCM |
| Power | 12V/1.5A universal power supply |
| Dimensions | 180 x 120 x 36 mm |
| Weight | 356 g |
| Operating temperature | 32-122°F (0-50°C) |
| Manufacturer part # | HT818V2 |
| UPC | 6947273705543 |
Good to know
- FXS only. It connects analog phones and devices, not phone lines from the phone company. For phone lines, use an FXO gateway like the Grandstream HT841.
- Fax over VoIP works best when your SIP provider supports T.38. Test your fax machine on the line before you rely on it.
Frequently asked questions
How many analog devices can the HT818 V2 connect?
Eight. It has eight FXS ports for analog phones, fax machines, door phones or paging amplifiers.
Can the HT818 V2 connect to phone company lines?
No. All eight ports are FXS. For phone lines, use an FXO gateway like the Grandstream HT881.
Warranty and support
Grandstream products carry the manufacturer's warranty, and we handle the claim with the distributor for you. Questions before you buy? Email shop@crosstalksolutions.com or call 541-787-8870.