Grandstream HT814V2 Analog Telephone Adapter, 4 FXS Ports, Gigabit NAT Router

Overview

The Grandstream HT814V2 lets you keep four ordinary analogue phones, cordless bases or fax machines when you move to an internet phone service (SIP, Session Initiation Protocol) or an office phone system (IP PBX). It sits between the handsets and the network, and its built-in Gigabit router means a PC can share the same cable run. It suits small offices, clinics, shops and hostels that want to reuse existing handsets and wiring rather than replace them.

Is it right for you?

• Suits a place with up to four analogue phones, fax machines or cordless bases to bring onto a SIP service or IP PBX.
• For two devices, the HT812V2 is the smaller version of the same adapter; for eight, see the HT818V2.
• For 16 or more analogue ports, or for a rack-mounted unit, the GXW4216V2 FXS gateway is the better fit.
• It is an indoor desk or shelf unit rated for 0 to 50 °C and 10 to 90% humidity (non-condensing).

Key features

• 4 RJ11 phone ports (FXS, Foreign Exchange Station), one per analogue device, with 2 SIP profiles.
• Two 10/100/1000 Mbps RJ45 network ports with a built-in NAT router, so a PC can sit behind the adapter on one cable run.
• HD voice codecs G.722 and Opus, plus G.711, G.723.1, G.726-32, G.729A/B and iLBC.
• T.38 fax relay (up to 14.4 kbps) and G.711 pass-through, so fax machines keep working over the internet connection.
• 3-way voice conferencing on each port.
• Ring load of 2 REN and up to 1 km of 24 AWG cable per port, so phones can be some distance from the adapter.
• AES-encrypted provisioning with a unique security certificate per unit, SIP over TLS, SRTP and TR-069 for automated roll-out.
• Compact body of 130 x 90 x 28.5 mm, 0.29 kg.

What else you need

• SIP accounts from an internet phone provider, or an IP PBX such as a Grandstream UCM.
• A network connection for the uplink port.
• A mains socket for the power adapter in the box (100 to 240 V AC in, 12 V DC 1 A out).

Installation

Place it on a desk or shelf indoors. Connect the uplink to the network port, plug the analogue phones or fax machines into the FXS ports, then configure it through the web interface, GDMS (Grandstream Device Management System) or a provisioning server.

An IT support person or a phone system installer can set it up. Ask your PBX administrator or provider to confirm how accounts map to the ports, since the unit has 2 SIP profiles.

Software and licences

Configure it from its web interface, through GDMS or from a provisioning server over HTTP, HTTPS, SSH, TFTP or TR-069, with AES-encrypted configuration files. It also supports SNMP for monitoring.

Before you buy

• Use only the power adapter in the box (12 V DC 1 A).
• The unit has 2 SIP profiles for its four ports, so confirm how accounts map to ports with your PBX administrator or provider before ordering.
• It uses standard SIP, so it works with Grandstream UCM, CloudUCM and third-party SIP servers.
• FXS capacity can be expanded by peering it with an FXS gateway.