Instruction: Answer the given question by extracting information from the supporting document.

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Question: Can any one recommend a DVR / NVR that they know to be compatible with the HooToo HT-IP210F ?? - Thanks!!
Document: The Quick Installation Guide that comes with the camera will get you through the basic setup, but before beginning the installation, I highly recommend going to the HooToo website and downloading the full user manual for the HT-IP210F camera. It's much more detailed, with illustrations and screenshots that cover the complete process of installing and using the camera.Installing the camera to work with my home wireless network was very straightforward and only took a few minutes, including installing the IP camera tool from the CD that was packaged with the camera.
The HooToo HT-IP210F wireless is a good product. Very well built, looking good too.Setup is pretty much the same as for other HooToo cameras. It is very easy to install for access from inside the network. It takes some time and basic network knowledge to make it work right with outside access, but once you figure out how to set up one camera - the others will go easy. Do not give up, read the manual, find some tips on the internet. There are some useful reviews for this camera and/or similar ones.
Recently I wanted to change Dynamic DNS providers, and contacted HooToo for an update to the Device Embedded Web UI that included an option for the provider that I wanted. They replied in one day, and sent me the file that I needed. Great service as well as a great product.HooToo HT-IP210F Wired/Wireless WiFi Network Camera, 16-LEDs (Night Vision) Extended Survey Area, Pan/Tilt (Horizontal:320 & Vertical: 120), Built-in Mic & Speaker for Two-Way Audio Communication, Embedded IR Filter for Much Real Colors, Free DDNS Lin...
Many of the baby monitors I'm seeing out there and have used are quite a bit more expensive and this one is a bargain in comparison. I've used several of them and one of the best features, the pan and tilt, comes at a cost in baby monitors. There are several uses for these cameras and in fact, I have one relative who uses these as a chicken cam to make sure there are no predators lurking in the coop (I kid you not). If you want a versatile, multi-faceted/use pan and tilt camera, I'd recommend trying out the HooToo.WHAT's IN THE BOX:-1 x Camera-1 x Antenna-1 x Adapter-1 x Network Cable-1 x Manual-1 x CD-ScrewsSPECIFICATIONS:Model:  HT-Ip210F (IR Filter)IMAGE SENSOR:Image Sensor:  1/4" CMOS SensorDisplay Resolution:  640 x 480 Pixels (300,000 Pixels)Lens:  F:3.6mm, F:2.0, Built-in IR FilterMinimum Lux Required:  0.5lm for Normal OperationLENS:Lens Type:  Glass LensViewing Angle: 90AUDIO:Input:  Built-in Microphone / One Channel Audio InputOutput:  One Channel Audio OutputAudio Compression:  ADPCMVIDEO:Image Compression:  MJPEG FormatImage Frame Rate:  30fps (VGA).
Each router has a different look and feel (even sometimes different models made by the same company). As stated above, probably a good idea to get your account with a compatible DDNS service too, prior to starting the install.Once you know your way around your router, then connect your camera directly to the router via Ethernet cable to one of the empty LAN ports, and let the camera boot up. When it has completed it's boot, then install the software on the CD that came with this camera ...
I have owned several brands of cameras with pretty much the same profile. The only negative is the camera still only supports wireless b/g. This reduces the range on wireless installations. I have purchased about 10 of the HT-IP210F cameras. All of the software features work. The microphone also works and provides clear sound. The cameras are installed in 4 locations: 2 in the US and 2 in Costa Rica. The cameras are all internet accessible. One of the cameras had a fuzzy picture and the vendor quickly sent me a replacement.
The next phase was to be able to access the camera from the Internet. That involved changing some of the settings on my Linksys wireless router. I was a little antsy about this, so I emailed the HooToo tech support, and to their credit, I received an answer within a couple of hours.With the camera set up, now I'm playing around with some of the features like the motion detector and audio connection. I've seen enough already to be very impressed with the HT-IP210F. With VGA graphics (640x480), you won't confuse this with an HD camera, but for surveillance purposes, it's fine.
EasyN and HooToo have much better outbound audio for remote listening. Good for baby monitoring. All have inadequate incoming audio. Listeners next to the camera can hardly understand the words without repeating by the remote person speaking into IP Cam Viewer. Luckily, you can phone in instead of relying on the camera if you want to speak to people next to the camera.I just got a Hootoo HT-IP210F camera. It is an upgrade from IP206. Slightly more expensive. If you are comfortable playing with your router settings, you can set up these cameras in a few minutes.
In the place with little light, the live video is almost useless. Foscam FI8910W has higher quality video than HooToo HT-IP210F in 640*480 resolution.3. Does not work with 64 bit IE at all.4. IPCamClient software does not work even the IP camera is connected to the router with a Ethernet cable and when live video works in Firefox.5. Nowhere in the document says how to make static IP to work wireless with a router. The static IP is needed for an IP camera in a home network when accessing the IP camera from Internet.It wasted time.
HooToo HT-IP210F (Black)Pros:Simple setup via included CD or via your browserPan & Tilt is very rapid and up to 320 panIR cut filter means actual colors during daylight hours- no more purple trees!3.6mm wide angle lensCons:Can't really find any with this model.... it worked 100% perfect right out of the box.Comments:I probably have about 10 ip cams now- so setup is easy for me because they're all pretty much the same after you've done a few.I don't use the setup CD- I just logged into the cams GUI at 192.168.1.101 with Internet Explorer and proceeded from there.
Answer: Unless you can run a DVR through a computer, they don't use DVR.  they use IP addressed and VPN.  You can watch from your phone or computer.  I can monitor from my office everyday.