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I recently switched to a broadband VoIP phone carrier (Vonage) from my former local phone service provider (Verizon). Now I place and receive phone calls through my cable modem connection, saving me $50/month. To take advantage of the QOS (quality of service) feature of the a Motorola VT1000v digital phone adapter supplied by my VoIP service provider, I connected the adapter between my cable modem and my Linksys linksys cable modem/DSL router. This configuration is not mentioned in the EchoLink setup pages, and while the configurations given are needed for the Lynksys setup, additional configuration is needed on the digital phone adapter for the port forwarding configuration on the Lynksys router to work. The additional setup is straightforward and easy.
By default, my Motorola VT1000v requests a DHCP address from the cable modem, and acts as a DHCP server for the Linksys router. The VT1000v assigns itself an IP address of 192.168.102.1, which it provides to the Linksys router as the WAN gateway IP address. The Lynksys router is assigned IP address 192.168.102.100 (in my setup). The VT1000v provides an http server for configuration at 192.168.102.1. In a web browser, bring up the VT1000v's configuration page by connecting to http://192.168.102.1 (or the Lynksys WAN gateway IP address in your configuration, if this is different). Adding echolink requires that two UDP ports (5198 and 5199) be configured in the VT1000v advanced configuration page, under virtual servers, as follows:
IP ADDRESS Port Transport
192.168.102.100 5198 UDP
192.168.102.100 5199 UDP
That's it for the VT1000v; port forwarding of the same ports to the host running EchoLink should be configured on the Linksys as well (following the documentation on the EchoLink web site). The VT1000v uses ports 5061 and 10000-100011 for VoIP, which does not conflict with EchoLink. If you have additional ports you would like to be forwarded to the Lynksys, such as the default X-windows port 6000, or the identd server port 113, these should be configured here as well as on the lynksys router. Unfortunately, my VPN client uses port 10000, which DOES cause a conflict with the VT1000v; for now, I'm left without a VPN connection to my employer, ( the CUNY Graduate Center). I should bring this up at the next systems meeting...
My first contact on Echolink was on Saturday, May 15th, 2004 with KC2HWG on the W2NJR repeater link; I was also able to reach the 440.050 West Orange NJ repeater on RF from Lincoln Center. I found the EchoLink troubleshooting tool useful for optimizing my setup.
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