Raspberry Pi Based OpenVPN VPN Server for Grandstream VoIP Phones For Sale

Raspberry Pi Based OpenVPN VPN Server for Grandstream VoIP Phones


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Raspberry Pi Based OpenVPN VPN Server for Grandstream VoIP Phones:
$100

This is a fully-configured OpenVPN server for use with Grandstream IP phones that have OpenVPN client support built in. In many installations it will be plug-and-play requiring only phone configuration to use. It is based on a reliable and powerful Raspberry Pi 3B microcomputer, and will support more than ten phones. This is version 2, which is considerably easier to configure.
​Use this server to securely locate Grandstream phones remotely from a central IP PBX, anywhere there is an internet connection. Typical applications include an office with a Grandstream UCM-series PBX needing to support phones in remote locations such as employee homes. The server will also work with non-Grandstream IP PBXs though a bit more configuration may be required. It is intended to be used with any of the models of Grandstream phones with OpenVPN support. With this server, remote phones will simply be extensions of your office phone system, with access to all features available to local office phones.
Note that this won't work with softphone apps including GS Wave. For a softphone app to work it would have to have OpenVPN support built in to the app that is configured the same as that in a Grandstream phone, and I don't know of any softphone apps that do so; use of the phone's OpenVPN support (if it has any) will not work as it would try to route all of the smartphone's internet traffic over the VPN and the server isn't set up to allow that. One possible exception might be certain iPhones that allow VPN traffic to be routed on an app-by-app basis -- I have no experience with this and don't know if it would work or if the capability even exists.
​Included is a DVD containing certificate files needed for configuring phones, and a very comprehensive 38-page illustrated manual containing full installation, configuration, and extensive troubleshooting information, which is the distilled result of several months of development.
Also included are a 120-240VAC power supply and a network cable; everything you need to install this item. The software and configuration data are supplied on an 8 GB Micro SD card; a backup image of the card is supplied on the DVD.
There's no magic here -- yes you can buy the same hardware for about $70 and download the open source software needed to build this yourself. But there is a pretty steep learning curve, and you can expect to spend a day setting it up, plus weeks or months to get it working if you aren't already experienced with OpenVPN, certificate creation, the Raspberry Pi, and the Raspbian version of Linux. What's your time worth?
There are a few simple configuration steps, mostly consisting of setting up your phone to use the VPN. In some cases you'll need to make simple changes to your router. All this is described in the accompanying manual, along with a full description of how the server is configured so you will understand enough to make changes and troubleshoot them should the need arise. If you are intending to use the server as supplied, most likely no configuration of the server is required.
In case of trouble, extensive troubleshooting information is provided in the manual. Also, we will provide free technical support to the extent possible while working remotely. The server comes with a 30-day return policy and a 1-year hardware warranty.
Note that the cost of the Raspberry Pi has been increasing lately, hence the price for this item has also gone up. Sorry about that...
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