Linksys SPA921 Cisco Small Business IP Phone SPA9XX User Guide - Page 24
Install the Firmware, STEP 1 - firmware upgrade
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Installing Your Phone Upgrading Your Phone's Firmware 2 Install the Firmware STEP 1 Extract the firmware onto your PC. NOTE: If you are in a VPN connection, you may need to disconnect before proceeding so that your PC can communicate directly with your phone for the upgrade. STEP 2 Run the executable file for the firmware upgrade (for example, double click upgspa942-5-2-8.exe). STEP 3 Click Continue after reading the message regarding upgrading and your service provider. STEP 4 Enter the IP address of your phone. STEP 5 Click OK. The system displays information about your phone's current software and hardware. STEP 6 Click Upgrade to begin the upgrade. NOTE: Do not disconnect your phone's power until the upgrade is complete (the lights on your phone are no longer blinking). STEP 7 Click OK to dismiss the status message of the upgrade. Cisco Small Business IP Phone SPA9XX User Guide 23