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                                                                        <p align="center"><img border="0" src="images/EchoLinkIcon.gif" width="64" height="64"> </font></P></td>
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                                                        <td valign="bottom" width="80%"><font size="6">EchoLink Proxy</font></td>
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<nobr><A href="tour.htm">Take a Tour</A></nobr><br>
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                                                                        <p><font size="3"><a href="#background">[Background]</a> <a href="#installation">[Installation]</a>
                                                                                        <a href="#faq">[FAQs]</a> <a href="#status">[Status Pages]</a></font></p>
                                                                        <h2><font face="Verdana, Arial, Helvetica"><font size="3"><a name="background"></a>Background</font></font></h2>
                                                                        <p><font size="2">EchoLink is a peer-to-peer system, by design.  This means that 
                                                                                        when your node is connected to another node over the Internet, the voice and 
                                                                                        text signals are sent directly from one node to the other, rather than going 
                                                                                        through some central server.  This helps ensure that the system is 
                                                                                        scalable and reliable.</font></p>
                                                                        <p><font size="2">Unfortunately, there are certain situations in which peer-to-peer 
                                                                                        connections such as these are difficult to establish.  A growing number of 
                                                                                        Internet providers are offering "one-way" access to the Internet — 
                                                                                        allowing your computer to initiate a connection, but not to accept 
                                                                                        one.  These include <i>wireless community networks, </i>or <i>hotspots</i>.  
                                                                                        An example is the wireless Internet service now being provided by many hotels 
                                                                                        to their guests.  Guests with wireless-enabled laptop computers can check 
                                                                                        their e-mail and surf the Web from their rooms.  The hotel uses a router 
                                                                                        with a fast Internet connection and a single public address (or a small pool of 
                                                                                        addresses) shared amongst all guests.  This arrangement does not work with 
                                                                                        EchoLink, because the guests' computers are not reachable from the Internet.</font></p>
                                                                        <h2><font face="Verdana, Arial, Helvetica"><font size="3">A Solution</font></font></h2>
                                                                        <p><font size="2">A solution to this problem is to split the EchoLink software into two 
                                                                                        pieces <font face="Trebuchet MS">—</font> one that runs on your laptop, and the 
                                                                                        other that runs on a PC in some other location with good Internet access.  
                                                                                        With this arrangement, the laptop need only establish a single, outbound 
                                                                                        Internet connection to the PC.  Then, the EchoLink software on the laptop 
                                                                                        "tunnels" all traffic through this connection to the remote PC, and the PC in 
                                                                                        turn establishes all of the necessary peer-to-peer connections to other 
                                                                                        EchoLink nodes.  In this scenario, the PC is acting as a <i>proxy</i> on 
                                                                                        behalf of the laptop.</font></p>
                                                                        <p><font size="2">EchoLink now offers special software to make this possible.  The 
                                                                                        proxy software, which is designed specifically for use with EchoLink, is called <b>EchoLink 
                                                                                                Proxy</b>.  The diagram below illustrates how EchoLink Proxy can be 
                                                                                        used.</font></p>
                                                                        <p><img border="0" src="images/EchoLinkProxyDiagram.gif" width="591" height="257"></p>
                                                                        <h2><font face="Verdana, Arial, Helvetica"><font size="3">Is EchoLink Proxy 
                                                                                                For You?</font></font></h2>
                                                                        <p><font size="2">Consider setting up EchoLink Proxy <i>only</i> if <i>both </i>of the 
                                                                                        following are true:</font></p>
                                                                        <ol>
                                                                                <li>
                                                                                        <font size="2">You have a fast, true, dedicated Internet connection at your home or 
                                                                                                office, or at some other place to which you have access to a PC, and</font>
                                                                                <li>
                                                                                        <font size="2">You have "one-way" Internet service at some other location, or you 
                                                                                                often travel to such a place, such as an airport lounge, coffee shop, or hotel 
                                                                                                room.</font></li>
                                                                        </ol>
                                                                        <p><font size="2">Note that EchoLink Proxy will <i>not</i> help if you are simply 
                                                                                        having trouble connecting to other stations from your home PC.  In fact, 
                                                                                        you must first ensure that EchoLink works correctly on the machine on which the 
                                                                                        proxy will be installed.</font></p>
                                                                        <p><font size="2">Also, note that a given EchoLink Proxy can be used by only one 
                                                                                        EchoLink client machine at a time, since each logged-in EchoLink node (or its 
                                                                                        proxy) must still have a unique public IP address.  You can run more than 
                                                                                        one instance of EchoLink Proxy on a PC only if the PC has multiple public 
                                                                                        Internet addresses, which is uncommon.</font></p>
                                                                        <p><font size="2">Finally, the proxy PC must be reachable through a static public 
                                                                                        Internet address, or a dynamic public address that can easily be determined 
                                                                                        remotely.</font></p>
                                                                        <h2><font face="Verdana, Arial, Helvetica"><font size="3">Disadvantages</font></font></h2>
                                                                        <p><font size="2">There are two key disadvantages to using EchoLink Proxy versus the 
                                                                                        regular EchoLink software:</font></p>
                                                                        <ol>
                                                                                <li>
                                                                                        <font size="2">Voice messages are being transferred between the client and proxy 
                                                                                                over TCP, rather than UDP.  TCP is not designed to handle this type of 
                                                                                                data, and tends to magnify any problems with congestion along the path.</font>
                                                                                <li>
                                                                                        <font size="2">Two computers (and Internet connections) are required, rather than 
                                                                                                just one.  It is necessary to run the Proxy software continuously on some 
                                                                                                remote server.</font></li>
                                                                        </ol>
                                                                        <h2><font face="Verdana, Arial, Helvetica"><font size="3"><a name="installation"></a>Installation 
                                                                                                Overview</font></font></h2>
                                                                        <p><font size="2">Here are the overall steps for installing and using the EchoLink 
                                                                                        Proxy.  For detailed information, see the section that follows.</font></p>
                                                                        <ol>
                                                                                <li>
                                                                                        <font size="2">If the proxy PC runs Windows, verify that the ordinary EchoLink 
                                                                                                software works correctly on it, and can connect to other stations.  
                                                                                                Resolve any firewall issues.</font>
                                                                                <li>
                                                                                        <font size="2">Be sure the PC has the Java Runtime Environment 1.4 (or above) 
                                                                                                installed.</font>
                                                                                <li>
                                                                                        <font size="2">Download and install the Proxy software on that PC.</font>
                                                                                <li>
                                                                                        <font size="2">Choose a port and password for the proxy, and edit the proxy 
                                                                                                configuration file.</font>
                                                                                <li>
                                                                                        <font size="2">Start up the proxy software.</font>
                                                                                <li>
                                                                                        <font size="2">If necessary, configure the router and/or firewall to allow the PC 
                                                                                                to accept inbound TCP connections on the proxy port (e.g. 8100).</font>
                                                                                <li>
                                                                                        <font size="2">On the client computer (e.g. the laptop), download and install 
                                                                                                Version 1.9 of the EchoLink software.  This version of the software has a 
                                                                                                Proxy option.</font>
                                                                                <li>
                                                                                        <font size="2">Configure the EchoLink software to connect to the new Proxy 
                                                                                                server.  You must enter the hostname or address of the proxy PC, the port 
                                                                                                number (e.g. 8100), and the chosen password.</font>
                                                                                <li>
                                                                                        <font size="2">When the EchoLink software starts, it will try to connect to the 
                                                                                                Proxy PC.  If successful, the program will look and act exactly as it 
                                                                                                normally does.  When you exit EchoLink, it automatically disconnects from 
                                                                                                the Proxy server.</font></li>
                                                                        </ol>
                                                                        <h2><font face="Verdana, Arial, Helvetica"><font size="3">Installation 
                                                                                                Details</font></font></h2>
                                                                        <p><font size="2">The EchoLink Proxy software can run on any OS that supports Java, 
                                                                                        such as Windows, MacOS, Linux, Solaris, or FreeBSD. </font></p>
                                                                        <p><font size="2">To verify whether the Java Runtime Environment is installed, and what 
                                                                                        version it is, type this command at a command prompt:</font></p>
                                                                        <p><font size="2" face="Courier New">java -version</font></p>
                                                                        <p><font size="2">If the command fails, or returns a version lower than 1.4, you will 
                                                                                        need to download and install the latest Java Runtime Environment (JRE).  
                                                                                        Follow the instructions at:</font></p>
                                                                        <p><font size="2"><a href="http://www.java.com">www.java.com</a></font></p>
                                                                        <p><font size="2">Download the EchoLink Proxy software.  The download is a ZIP 
                                                                                        archive that contains two files.  The software is in a file called <font face="Courier New">
                                                                                                EchoLinkProxy.jar</font>, and the sample configuration file is <font face="Courier New">
                                                                                                EchoLinkProxy.conf</font>.  Copy both of these files to some 
                                                                                        convenient directory or folder on the PC.</font></p>
                                                                        <p><font size="2">Choose a password and a port number for the EchoLink Proxy.  The 
                                                                                        default port number is 8100.  The port number you choose must be a TCP 
                                                                                        port that your home ISP allows for incoming connections, and that the remote 
                                                                                        ISP allows for outgoing connections.  If you are using security software 
                                                                                        on your home PC, you might need to configure it to allow java.exe to accept 
                                                                                        connections on this port.  Also, if you have a home-networking router, you 
                                                                                        will need to configure it to "forward" incoming connections on this TCP port to 
                                                                                        the PC on which EchoLink Proxy will be running.</font></p>
                                                                        <p><font size="2">Using a text editor such as Windows Notepad, edit <font face="Courier New">
                                                                                                EchoLinkProxy.conf</font> to reflect your choices.</font></p>
                                                                        <p><font size="2">You must also ensure that the proxy PC can accept UDP ports 5198 and 
                                                                                        5199, and outbound TCP port 5200.  See <a href="firewall_solutions.htm">Firewall 
                                                                                                Solutions</a> for details.</font></p>
                                                                        <p><font size="2">To start the EchoLink Proxy software, open a command prompt, change 
                                                                                        to the directory or folder that contains EchoLinkProxy.jar, and type this 
                                                                                        command:</font></p>
                                                                        <p><font face="Courier New" size="2">java -jar EchoLinkProxy.jar</font></p>
                                                                        <p><font size="2">When the program starts, it will display the message "Ready for new 
                                                                                        client connection."  Leave the command-prompt window open to allow the 
                                                                                        program to keep running.</font></p>
                                                                        <p><font size="2">On the remote PC (e.g., the laptop), download and install version 1.9 
                                                                                        (or above) of the EchoLink software.  Start up EchoLink as usual, but go 
                                                                                        to Tools-->Setup, and click the Servers tab.  Check the box marked "Use 
                                                                                        proxy", and enter the hostname (or IP address) of the proxy PC, along with the 
                                                                                        chosen password and port number.  Note that the hostname (or IP address) 
                                                                                        must be the <i>external</i> address of the proxy PC, not the <i>internal</i> address.  
                                                                                        Click OK and then re-start EchoLink for the changes to take effect.</font></p>
                                                                        <p><font size="2">After re-starting EchoLink, if it displays a message about problems 
                                                                                        connecting to the proxy, verify that the host name is correct and that no 
                                                                                        firewall or router issues are interfering with the TCP connection between 
                                                                                        EchoLink and the proxy.  (This connection uses <i>only</i> the single TCP 
                                                                                        port you selected.)</font></p>
                                                                        <p><font size="2">If the list of stations appears as usual, but you are unable to 
                                                                                        connect to other stations, check the firewall/router setup on the proxy 
                                                                                        PC.  In effect, the proxy PC is the PC from which EchoLink connections are 
                                                                                        established, so all of the information on the <a href="firewall_solutions.htm">Firewall 
                                                                                                Solutions</a> page applies to the proxy PC.</font></p>
                                                                        <p><font size="2">To shut down the proxy, switch to its window and hit Ctrl+C.</font></p>
                                                                        <h2><font face="Verdana, Arial, Helvetica"><font size="3"><a name="faq"></a>Frequently 
                                                                                                Asked Questions</font></font></h2>
                                                                        <p><font size="3"><b>Q:</b> What version of the EchoLink software will work with 
                                                                                        EchoLink Proxy?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Version 1.9 or above.  The new proxy settings appear 
                                                                                                on the Servers tab under Tools-->Setup.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> I have dial-up Internet access at home, rather than 
                                                                                        broadband.  Can I still use EchoLink Proxy?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> It might work, but it's not recommended.  EchoLink 
                                                                                                Proxy uses more Internet bandwidth than EchoLink itself requires, which might 
                                                                                                be more than your dial-up connection can reliably provide.  Also, a 
                                                                                                dial-up Internet address usually changes each time the line is re-connected, 
                                                                                                making it more difficult for you to establish a connection to it from a remote 
                                                                                                PC.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> What about the remote computer (the one running 
                                                                                        EchoLink)?  Can it connect to EchoLink Proxy over a dial-up connection?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Yes, but since it uses the TCP protocol to communicate with 
                                                                                                the proxy, packet loss might be more noticeable.  However, the proxy is 
                                                                                                rarely necessary in this situation since most dial-up accounts provide full 
                                                                                                Internet access — you're better off using EchoLink directly.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> I have a home network with a PC and a laptop, and I've been 
                                                                                        having trouble getting EchoLink to work on the laptop.  Will this Proxy 
                                                                                        thing help?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> It might, but you are probably better off troubleshooting 
                                                                                                the laptop problem, since the proxy has certain disadvantages compared to a 
                                                                                                direct EchoLink connection.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> I have broadband Internet access, but my computer's public 
                                                                                        IP address changes from time to time.  How will I know what its address is 
                                                                                        when I am 1,000 miles away?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> There are two solutions (choose one or the other):</font></p>
                                                                                <ol>
                                                                                        <li>
                                                                                                <font size="2">Subscribe to a "dynamic DNS" service such as <a href="http://www.d2g.com/">
                                                                                                                DNS2Go</a>.  With the help of special software installed on the PC, 
                                                                                                        your PC will be assigned a fixed hostname, even though its IP address may 
                                                                                                        change from time to time.</font>
                                                                                        <li>
                                                                                                <font size="2">Enable the RegistrationName feature in the proxy configuration 
                                                                                                        file.  This will cause the proxy to periodically post a message to the 
                                                                                                        EchoLink server advising it of your current IP address.  You can then find 
                                                                                                        out the IP address from a special <a href="proxylookup.jsp">web page</a>, which 
                                                                                                        you can bring up each time you need to connect to the proxy.</font></li>
                                                                                </ol>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> I run a full-time EchoLink Sysop node at home, on my 
                                                                                        broadband Internet connection.  Can I also run the EchoLink Proxy software 
                                                                                        at home, either on the same computer, or on a different one?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Probably not.  The reason is that each EchoLink node 
                                                                                                (including the proxy) must have a different public IP address; on most home 
                                                                                                networks, a single public Internet address is shared by all computers on the 
                                                                                                network.  You can do this only if you have made special arrangements with 
                                                                                                your ISP to have multiple public Internet addresses.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> If I use EchoLink (via the proxy) from a public "hotspot", 
                                                                                        such as an airport lounge, is there a security risk since others might "sniff" 
                                                                                        the information going to and from my laptop?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> This is an important issue that is often overlooked by 
                                                                                                users of wireless networks.  EchoLink (version 1.8 and above) uses 
                                                                                                public-key cryptography to encrypt your login information, and EchoLink Proxy 
                                                                                                uses a challenge-response digest-based authentication mechanism.  
                                                                                                Passwords are never sent "in the clear".  These features help ensure 
                                                                                                security over a shared public network.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> I've tried using the Proxy and it seems to work, except 
                                                                                        that I can't connect to any other stations.  What is the problem?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Most likely, it's a firewall or router problem at the proxy 
                                                                                                PC (not the EchoLink PC).  See <a href="firewall_solutions.htm">Firewall 
                                                                                                        Solutions</a> for assistance.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> If my Internet connection is dropped while I'm using the 
                                                                                        proxy, can I re-connect?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> In most cases, EchoLink Proxy will detect the dropped 
                                                                                                connection and re-set itself right away.  In other cases, it may take up 
                                                                                                to 10 minutes for the proxy to re-set itself and prepare for a new connection.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> Can more than one EchoLink user work through my proxy at 
                                                                                        the same time?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> No; each instance of the proxy supports only one client at 
                                                                                                a time.  This is because each logged-on EchoLink user must have a 
                                                                                                different public IP address.  However, two (or more) users can take turns 
                                                                                                using your proxy at <i>different</i> times.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> When connected through the proxy, will EchoLink support 
                                                                                        conferencing?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Yes, but it is less efficient, since the EchoLink client is 
                                                                                                hosting the conference, not the proxy.  When calculating the maximum 
                                                                                                number of connections you can support,  you must consider both the proxy's 
                                                                                                upstream Internet connection and the EchoLink client's upstream Internet 
                                                                                                connection, and use the lesser of the two; divide the result (in kbps) by 
                                                                                                18.  Also, keep in mind that the proxy uses equal amounts of upstream and 
                                                                                                downstream bandwidth.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> Can I set up an EchoLink Proxy for others to use, besides 
                                                                                        myself?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Yes, but you must agree not to charge a fee for access to 
                                                                                                it.</font>  <font size="2">Note that the Proxy configuration file allows 
                                                                                                you to set an accept/deny list of callsigns if you want to restrict access to a 
                                                                                                specific group of users.</font></p>
                                                                                <p><font size="2">In fact, there is an option in the Proxy configuration file that 
                                                                                                allows you to "advertise" the server as a "public" proxy, and have it 
                                                                                                automatically be listed on a <a href="proxylist.jsp">special page</a> on the 
                                                                                                EchoLink Web site.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> Instead of setting up and running my own EchoLink Proxy, 
                                                                                        can I simply connect to someone else's?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Yes, but you would need to know the address and password of 
                                                                                                the proxy, and you would need the owner's permission to use it; or, use a 
                                                                                                "public" proxy (<a href="proxylist.jsp">see list</a>).  If you decide to 
                                                                                                use a public proxy, please be considerate; it is a shared resource, and should 
                                                                                                be used only for brief time periods.  If you have a need for long-term 
                                                                                                access to a proxy, please make arrangements to set up a private proxy for 
                                                                                                yourself.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> I have a home network with two computers that share a DSL 
                                                                                        connection to the Internet.  I run a full-time EchoLink Sysop node on one 
                                                                                        of them.  Can I run another copy of EchoLink on the second computer by 
                                                                                        pointing it to a proxy at some other location?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Yes; this will work, because your Sysop node and the 
                                                                                                distant proxy server would have two different IP addresses.  However, 
                                                                                                please be considerate about the use of "public" proxies; use them only for 
                                                                                                short periods.  If you require long-term access to a proxy, please make 
                                                                                                arrangements to use a private proxy, or set one up yourself at some other site 
                                                                                                that has Internet access.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> With EchoLink Proxy, will I be able to run EchoLink on a 
                                                                                        computer on a private network that has no gateway to the Internet at all?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> The proxy arrangement still requires that the EchoLink 
                                                                                                client software perform DNS lookups for certain Internet hosts (namely, the 
                                                                                                addressing servers).  If you run the EchoLink client software on a private 
                                                                                                network and connect through a proxy as the gateway, you would also need a 
                                                                                                caching DNS resolver accessible from the EchoLink client.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> Is there any way to use EchoLink Proxy with an EchoLink 
                                                                                        client that is behind an HTTP proxy?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> Yes, as long as the HTTP proxy supports "tunneling" via the 
                                                                                                CONNECT command, and the EchoLink Proxy is running on a port to which the HTTP 
                                                                                                proxy allows tunneled connections, such as 443.  It also requires that the 
                                                                                                HTTP proxy's inactivity timer be no shorter than 6 minutes, or that the 
                                                                                                EchoLink client remain connected to another station at all times.  To use 
                                                                                                this feature, put a slash after the EchoLink Proxy hostname, and then the IP 
                                                                                                address and port number of the HTTP proxy, separated by a colon.</font></p>
                                                                        </blockquote>
                                                                        <p><font size="3"><b>Q:</b> On a Windows computer, how can I set up the proxy so 
                                                                                        that it starts automatically each time Windows is re-started?</font></p>
                                                                        <blockquote>
                                                                                <p><font size="2"><b>A:</b> On Windows NT/2000 or above, you can set up the proxy to 
                                                                                                run as a Windows Service, using a freeware utility called JavaService (<A href="http://forge.objectweb.org/projects/javaservice/">http://forge.objectweb.org/projects/javaservice/</A>).  
                                                                                                Assuming you have put EchoLinkProxy in C:\EchoLinkProxy, and you are running 
                                                                                                the Sun 1.4.2 JRE, a typical command to install the service might be (all on 
                                                                                                one line):</font></p>
                                                                                <P><FONT face="Courier New" size="2">javaservice<BR>
                                                                                                    -install "EchoLinkProxy"<BR>
                                                                                                    "C:\Program Files\Java\j2re1.4.2\bin\client\jvm.dll"<BR>
                                                                                                    -Djava.class.path=C:\EchoLinkProxy\EchoLinkProxy.jar<BR>
                                                                                                    -start org.echolink.proxy.ELProxy<BR>
                                                                                                    -out C:\EchoLinkProxy\stdout.txt<BR>
                                                                                                    -current c:\EchoLinkProxy</FONT></P>
                                                                        </blockquote><a name="status"></a>
                                                                        <H2><FONT face="Verdana, Arial, Helvetica"><FONT size="3">Status Pages</FONT></FONT></H2>
                                                                        <p><a href="proxylist.jsp">List of Public EchoLink Proxies</a></p>
                                                                        <p><font size="2">This page displays the address and current status of each EchoLink 
                                                                                        Proxy Server that welcomes access from any EchoLink user.</font></p>
                                                                        <p><a href="proxylookup.jsp">EchoLink Proxy Lookup</a></p>
                                                                        <p><font size="2">Looks up the current Internet address of any proxy server (public or 
                                                                                        private) that has registered itself using the RegistrationName option.  
                                                                                        See the comments in the EchoLink Proxy configuration file for details.</font></p>
                                                                        </td>
                                                </tr>
                                        </table> </CENTER></DIV> </td>
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<p align="center"><font size="1">Copyright © 2002-2015 Synergenics, LLC. 
EchoLink<sup>®</sup> is a registered trademark of Synergenics, LLC.</font></p>
<p align="center">
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