Grandstream GXV3275 IP Phone Review

, posted: 29-Jul-2014 09:00

The GXV3275 is the latest device from Grandstream Networks, a long time manufacturer of IP telephony solutions. It’s fair to say the GXV3275 is worlds apart from some of the earlier IP phones from Grandstream (Does anyone remember the BT-101?), and quite possibly the best corded IP phone on the market right now.

The Hardware

The first thing you notice is that instead of physical buttons, this phone features a crisp 7” (1024x600) multi-touch capacitive touch screen display with a row of 5 capacitive buttons underneath. Hook switch aside, there are no other physical buttons on this phone, giving it a nice clean look. The picture was clear and crisp, however I did notice some slight flickering on dark backgrounds but this wasn't bad enough to worry about. As with most touch screens, fingerprints are an issue, however the bright screen hid them well when lit.

The phone is running on an ARMv7 processor and 825MB of RAM and this seems plenty for everything I have thrown at it so far. The phone has 2GB of memory on board, which for some reason is split across 2 different internal SD cards, with the option of adding your own external SD card for a 3rd storage pool.

The device is HD voice compatible for both handset and speaker calls, and the loudspeaker is clear and crisp and didn’t distort with voice, and even sounded okay playing some music.

Just above the screen is an adjustable 1.3MP camera. The camera can be adjusted up and down as needed by a wheel on the back of the phone, and can be completely  disabled by adjusting it outside of the lens on the front of the phone. The phone is capable of 720P video, and while the picture is good enough, I have seen better.

In the top right of the phone is a dual red/green LED. Green for ringing and red for voicemail and missed calls (and a few other things). The green LED also comes on by default when the screen is off, however I was able to disable this in software which I preferred.

On the back of the phone are the main connections, being power (Although the phone is PoE capable if you have a PoE switch), a LAN connection and pass-through PC port as well as both handset and headset connections. The phone automatically detected when I had a headset plugged in, and routed calls there accordingly. The LAN ports are gigabit capable, however the phone also has built in B/G/N WiFi if a cable isn't an option.

Also on the back is the adjustable stand. Unlink many other IP phones I have had in the past, this stand is fantastic. It feels solid and can be adjusted to any angle you like with ease, but is firm enough to stay there. As with the rest of the phone, I have been extremely impressed with the build quality. Similar in design to Grandstream's GXV3175 (An older Linux-based model), the phone feels well refined and expertly built. On the desk it doesn't move when using the touch screen, and the handset is solid and well weighted.

As if this phone wasn't packing enough, a panel on the left hand side opens to reveal a mini-HDMI port, 3.5mm audio output, a (full size) SD card slot for expanding the internal storage and two USB2 ports. I've added an SD card to mine, but I am at a loss as to what I would use the rest of the ports for, though it’s nice to know they are there if I need them.

Included in the box along with the phone was an ethernet cable, wall mounting bracket, microfibre cloth, user manual and the power adapter.

The Software

The phone is running a mildly customised version of Android 4.2.2. As an Android mobile user, the interface is nice and familiar and I had no trouble finding my way into and around the settings. By default, the device comes with an App store called GS Market (GS being short for Grandstream) which allows you to download and install many common applications like Skype, Lync, Facebook and many others.

For full access to the Google Play store, you can simply download the Play store app from GS Market and go from there. I had no trouble at all installing apps from the Play Store with everything running without a problem. I’ve downloaded Accuweather, Spotify (which plays nicely and the sound quality from the speaker is surprisingly good), YouTube, Plex and others – all of which run just as you would expect.

The phone comes out of the box with a set of widgets to show you active lines. These can be touched to launch the dialler for that particular line. One nice feature is that the on board Bluetooth can be used to connect to a headset for calling, as well as run in ‘Headset mode’, where it will connect to your mobile phone as a headset, and allow you to make calls from the Grandstream in and out via your mobile phone. The phone can connect to up to 6 SIP trunks, a Bluetooth device in headset mode as well as being a client for Skype, Lync or pretty much any other communications app that runs on Android.

When a line is clicked form the widget, the telephone icon on the screen is pressed or the handset is lifted the dialler appears. This is easy to use and very snappy, and you can select lines down the left, recent calls or dial the number as needed. Buttons in the top right allow you to switch between the speaker and the handset as required.

The call screen is also very easy to use, with common functions readily available. Adding additional calls or starting a conference call (with up to 6 participants) is very straightforward.

Tapping on the applications icon from the home screen brings up the app drawer, as you would expect on an Android device. The phone comes pre-loaded with a number of common and handy utilities, but as expected, it runs any Android 4.2.2 app a tablet will run.

The settings application will be familiar to any android user, and there is the right balance of customisation and simplicity here. To get your hands really dirty, there is a web based configuration utility, which you can access from any web browser on your network via the IP address assigned to the phone. The web UI was easy to use, and had a very good level of configuration options.

Each of the SIP accounts can be configured via the web browser, or via the settings application on the phone. The browser application allows you to configure many more settings for the line, whereas the settings app on the phone will only take the basic registration info.

By default, each line is set to send video automatically. I turned this off (via the web interface) as most of the time the other party doesn't have a video device, and I would prefer to choose when I make a video call.

The Good

There is a lot to like about this phone. I have been anxiously awaiting its release since I saw a demo model earlier this year, and ordered one as soon as my local supplier in Melbourne got stock. It’s a very well featured device and Grandstream have done a great job at building a quality device both in terms of the hardware and software. It would have been easy to skimp on either, but Grandstream have been able to make a very well refined phone, and still keep the price reasonable. You can get these on EBay currently for around US$225 plus shipping, which I think is an absolute bargain for what this phone is packing, and on par with many mid-range IP phones from other manufactures that have a fraction of the features. Expect to pay more (maybe a lot more) to buy one locally, if you can get one at all.

The phone has handled everything I have thrown at it so far, and Grandstream seem to be doing an excellent job with software updates, with two firmware releases since the launch in June, and 3rd in Beta. These are mostly small bug fixes, but it’s good to know they haven’t simply launched and abandoned as many devices manufactures seem to do these days. There is no word on if any future updates might include a bump up in the Android version, but 4.2.2 Jelly Bean is recent enough that this won’t be a problem for some time.

The Bad

I really have to think hard to put anything in here. The biggest (and still small) gripe I have is with the widgets for lines and speed dials (as shown above). They seem to waste a lot of space on the home screen but don’t slow a lot of information. This is especially true for speed dials (not shown), which have a huge widget, but only allow a few characters of text to be shown, making them hard to read.

Grandstream have released an SDK with code examples, so I may have a crack at building my own app to make some better home screen widgets.

The Wish List

This phone is near perfect in my view, but if I had to wish for something, it would be to incorporate a DECT base station into the phone, and build a DECT receiver into the handset, removing the need for a cord. With a decent battery, this would almost certainly be a plus for almost all users, and the device could also serve as a base for Grandstream’s range of IP DECT cordless handsets too.

It’s hard to imagine what else Grandstream could do to improve on this device. Aside from maybe upping the processing and memory specs in the next version (Which are by no means lacking in this one), I am hard pressed to think of anything it’s missing.


You need one of these (or maybe a bunch of them). There is nothing else like and the price is certainly appealing. A colleague of mine has also purchased several to use at home as a phone, an IP camera viewer and home automation controller. Grandstream have set the bar on the next generation of IP phones, and they have the bar high.


I am not in any way associated with Grandstream and this review has been written entirely of my own accord and without reward. The phone reviewed (The Grandstream GXV3275) is my own property and was purchased by me for personal use.

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ajobbins's profile

Adam Jobbins

A kiwi currently living in Melbourne, Adam Jobbins is an IT Project Manager by day who likes to dabble in VoIP and other geekery in his spare time.