Phone.com Setup and Troubleshooting Guide
Cisco SPA303 IP Phone
Revised: May 28, 2014 Page 3 of 11
Connecting It To Your Network
Figure 1: Phone diagram and network setup
Use the Ethernet cable that came with your Cisco SPA303 IP Phone
to connect an available LAN port on your router to the SW port of
your phone (see the solid blue line in Figure 1).
If you only have one Ethernet connection nearby and need a
computer to share that connection, use another Ethernet cable to
connect the network port on your computer to the PC port of your
phone (see the dashed blue line in Figure 1).
The first time you plug in your SPA303, it will take a
few minutes and will reboot twice. Your phone is
ready for use once you see both of the following:
• A text logo on the screen that says
“Phone.com”
• Your phone’s extension number next to a
green line key
Don’t power-cycle your
phone if the screen
shows the firmware
updating. You might
corrupt the firmware
and cause the phone to
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