Cisco 7925G - Cisco Unified Wireless IP Phone 7925 G Desktop Charger; Charger Overview and Features

Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Deployment Guide
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Queue statistics can also be displayed by navigating to Settings > Status > Network Statistics.
If on a phone call, should see the DataRcvVO counter increasing assuming QoS has been deployed correctly.
This reflects that voice packets are being properly marked as UP6 (VO) downstream to the Cisco Unified Wireless IP Phone
7925G, 7925G-EX, and 7926G.