Name: Cisco 7925G Series
Brand: Cisco
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Cisco Unified Wireless IP Phone 7925G Series Deployment Guide 59

EDCA Parameters

Set the EDCA profile for “Voice Optimized” and disable “Low Latency MAC” for either 5 or 2.4 GHz depending on which

band is to be utilized.

Low Latency MAC (LLM) reduces the number of retransmissions to 2-3 per packet depending on the access point platform, so

it can cause issues if multiple data rates are enabled.

LLM is not supported on the Cisco 802.11n access points.

DFS (802.11h)

In the DFS (802.11h) configuration, channel announcement and quite mode should be enabled.

Power constraint should be left un-configured or set to 0 dBm as DTPC will be used by the Cisco Unified Wireless IP Phone

7925G Series to control the transmission power.

In later versions of the Cisco Unified Wireless LAN Controller it does not allow both TPC (Power Constraint) and DTPC

(Dynamic Transmit Power Control) to be enabled simultaneously.

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Cisco 7925G Series Specifications

General