Grandstream ATA híbrido con puertos FXS y FXO (HT813)

Perfect!

We didn't need the FXS port, only the FXO as the device we had didn't natively terminate SIP. It's a little PITA to configure initialy, but once locked in, it works well.

Works perfectly with FreePBX, landline, analog phone & softphones in various OS.

This is a niche product for those who works with (or dabbles) in Voice over IP. In my scenario, I have an Asterisk server setup with digital SIP trunks, but needed to bring in a good old fashioned PSTN/POTS line into the system. For this setup, one would need a device with an FXO interface. The HT813 unit comes with one FXS and one FXO ports, which is what I needed. The POTS line goes into the FXO and one can hook up a regular landline phone to the FXS if needed.The HT813 is very easy to setup for Asterisk and works reliably. The unit also has key features that makes it a suitable for different telco standards. For example, detecting a hung up line can be voltage change (US) or hang up tone (Asia). It comes with support for various international standards for caller ID so you can deploy …

This ATA device works well with my setup. FreePBX (Asterisk) system connected to the PSTN - works fine for incoming and outgoing calls. There are a LOT of parameters that can be adjusted on this thing so it may take a bit to get it and the PBX configured correctly, but it does work fine after you get everything set up correctly.

GrandStream HT813 arrived on time, unit was initially functional. Setup was... not intuitive, but after a couple of false starts I was able to get it almost working as needed.After leaving it idle for a week, I tried to log back in and reset the SIP provider - no luck, web interface was unavailable. SSH, telnet too. Dialing *** gives back congestion tones.Factory reset would only reboot, this was supposed to be a hardware feature, but if they changed that, it's undocumented.Grandstream support is laughably incompetent (they kept insisting I provide a video of the issue, I kept trying to get across that sending a video of a web page not loading was not going to help solve it), and they won't honor any warranty. 30-day return window has passed, so I guess I'm just out my $70.My hunch is …

Works great with free pbx. One issue is it holding onto the pots line after you hang up. If you don’t have long phone calls you can set a maximum call length to ensure it doesn’t get hung up.

I am originally from a country where phone calls from the US are over 0.5$ per minute. The local phone call rates in that country are only a couple of US cents per minute if calling a cell phone from a land line (landline to landline is even cheaper). The FXO port on the Grandstream HT813 is what makes it possible to save a lot if calling that country from the US a lot.This unit is a good tradeoff between being easy to setup and having a lot of configuration options. You may spend a bit more time configuring the unit but will have more control over its configuration. The notable features is the encryption support (TLS and SRTP secure connection) and the support of the option to use pulse mode phones on the FXS line (this cannot be done with Cisco SPA112 and SPA122).The only two …