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Linksys SPA 303 IP telephone. This manual explain how to configure a Linksys SPA 303 IP telephone for 3 lines with Netelip service. Step 1 First, obtain your telephone IP address. To get it, just press the “Set up” key as we show in the next photo.
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Then click the telephone extension you wish to configure. Linksys SPA 303 has up Step 6 to 3 lines. You can also name the extension to be showed in your telephone screen. Access to “Phone” section and you will see next to each extension a short name to define.