The phone arrived a day early. Plugged it in found the mac address and set it up in the system. Worked like a charm.

This is the D65 Asterisk/SIP phone made by Digium, which is the same group that maintains Asterisk. I would expect it to work out of the box, and it did.... with some work.Okay, first, and most importantly: This is NOT a normal, plug-in-to-the-wall phone. It will NOT work with normal analog phone lines or home-office-style phone service. There is no cord or jack to plug in to your wall phone jack, don't even try! This phone is designed primarily to be an Asterisk SIP endpoint. It can connect to one or more (6, actually!) SIP service providers. If you don't know what Asterisk is, and you don't know what SIP service is, you should NOT buy this phone.To use this phone as it is intended, you must have your own Asterisk- or SIP-based phone system. I am using my D65 with two different Asterisk 18.6 systems, clean installs, with minimal configuration. One is on my local behind-NAT network, and the other is on the Internet elsewhere. My D65 is connected to both, and can make and receive calls reliably from both systems.This phone is generally intended to be used in an office setting. It expects to be plugged into an Ethernet connection, and receive POE Power-Over-Ethernet. The phone comes with the body, a stand, a handset and handset cord, and an Ethernet cable but it does NOT come with a separate power supply. If you're using this phone at home or don't have POE or don't intend to plug in to Ethernet, you'll want to purchase the separate power supply for a few dollars more - it's well worth it. This phone does *not* have Wifi built in, or any other network access, and it does *not* support IPV6.The first thing you should do when you purchase this phone is to power it on and upgrade the firmware. My phone arrived with firmware that was many versions back, and a number of features currently offered were missing. So just make the determination that you're going to upgrade the firmware. This is the only part of the phone that I was particularly unhappy with: My initial attempts to upgrade the firmware failed. This might have been because my firmware version was so very old; but, still, one expects the process to be seamless, and it wasn't. I tried downloading from the website, and unpacking, but the phone wouldn't recognize the file. I tried generating a config file, which also failed. I then tried hand-keying the URL into the phone itself using T9-style typing - and that *also* failed on the first attempt. On the second attempt using that method, the phone finally downloaded and accepted the upgrade, and I'm now on the latest firmware version, which, as of September 2021, is 2_9_13. (I think my phone came with version 2_4_1, which is *30* versions and *4* years back.Once you get on the latest firmware, though, using the phone is a piece of cake. I'm using the Asterisk PJSIP module, and your Asterisk endpoint config in pjsip.conf really only needs something like:allow=!all,alaw,ulaw,g722rtp_symmetric=yesforce_rport=yesrewrite_contact=yesdirect_media=noto connect in and out flawlessly.As you would expect from a SIP phone, it will NOT work well behind a double-NAT, so I had to flatten my home network a bit to get it to single-NAT to connect. In addition, to connect to my remote Asterisk, I had to set the D65 to use TCP on that connection (instead of UDP). But that was just a few minutes of trial and error.Apart from the firmware upgrade difficulty, this phone has only two other negatives, but they are a problem. First: The configuration webserver on this phone cannot be (conveniently) turned off from the server itself or from the phone settings. I'm given to understand you can construct a complicated XML file to force the issue, but that's more work than I feel should be necessary to implement such a feature.Second, and related: The admin password can only contain digits, and only TEN digits at most. Yes, that's ten billion password possibilities, but it just... feels... insecure.One other thing I don't like: The phone gathers fingerprints. Everywhere. Cleaning it is not as easy as it should be. The phone itself is beautiful - nice, crisp screen, but both the matte and gloss plastic finishes just cling to fingerprints, which quickly mars the beauty of the device.Everything else about the phone is fabulous. It's got great sound quality, a great display, a good feel in the hand, easy, comfy buttons, and it *Feels* like a reliable device. I imagine it would work well and reliably with a variety of SIP systems and providers; for me, this is the phone of choice for my Asterisk systems, and as we all prepare for a return to work, I'll be upgrading my office's phones with this unit going forward.

Great Phone. Very easy and quick to setup on our Digium phone system. Looks very classy and modern. Nice easy to read color screen. Bluetooth works well when paired with recommended headset. Very pleased.

This is also my first review ever on a product on Amazon. I was looking for a new SIP phone for our Asterisk installation and decided to see what all the fuss was about the Digium phone. I read the first review on this page and originally thought, oh brother, maybe not. But then the second review swayed me. So decided I would just get one first to try it out. If it turned out good, then I'd implement throughout our 300+ professional services company.Well, needless to say, It was very easy to install. Once I connected the phone to my network, it immediately saw my Asterisk installation, and I clicked on it. The DPMA module (our IT staff previously installed) automatically set it up and I had it working within 5 minutes of taking it out of the box. And that INCLUDED taking it out of the box, connecting the cables, adding the little feet and popping the phone on the cradle.We're implementing throughout our organization. Although we didn't buy the rest of the D65 phones from Amazon, instead we bought from our local reseller who does a top notch job of supporting us. Digium did a great job with the interface, auto configuration, and packaging. I woudl highly recommend these model phones.

The phone should still be held in Q&A with all the issues that it has. The only one positive is that it supports the Opus codec. Here are a list of issues that I found with in the first hour of using it.1) No BLF option via the web interface.2) Settings do not take. For instance if you delete the digit map it stays there. The same goes for security settings.3) If you set up a SIP account say on line 6 it goes on the second button from the top.4) There are no way to set what button does what function. For instance you can't set that the first two buttons are "line 1".5) If you disable a SIP account the phone deletes the settings (even though the GUI says it will keep it).6) Not a bug but no VPN option?This in NO WAY reflects the seller. Digium has a lot to work out on this phone.

This is the very first review I have ever left, and I feel compelled to leave this review because of the negative review which I feel is wrong. We have implemented over 100 of these at our outpatient imaging centers (Radiology). We use Switchvox by Digium as the PBX. They are also used in our corporate office and vein therapy clinics. This is a VERY high quality phone. When we first implemented them - changing from a Mitel 3300 - I was on a speaker phone call and I asked the other end how it sounded. He said excellent and he didn't even know I was on speaker. These phones are very high quality and when paired with Switchvox have a very rich feature set. They also have built in apps to easily manage things like voicemail and call parking. The user experience is great. I stopped by our MRI area because the vein therapy users had fun chasing ringtones. The MRI tech said "ya, you left me unsupervised so I already changed the ring tone, too." You can control those permissions but we let the staff have fun. Anyway, I would not recommend any other phone.