300-360 · Question #115
You must upgrade a data-based wireless network to support Voice over Wireless. Which RSSI measurement do you use to redesign the wireless network?
The correct answer is D. -67 dBm. The Cisco-recommended minimum RSSI for VoWLAN (Voice over WLAN) is -67 dBm. Voice traffic requires a stronger, more reliable signal than data traffic because it is latency-sensitive and cannot tolerate packet loss or retransmissions. A standard data-only network might be…
Question
You must upgrade a data-based wireless network to support Voice over Wireless. Which RSSI measurement do you use to redesign the wireless network?
Options
- A-65 dBm
- B-72 dBm
- C-75 dBm
- D-67 dBm
How the community answered
(27 responses)- A4% (1)
- B4% (1)
- D93% (25)
Explanation
The Cisco-recommended minimum RSSI for VoWLAN (Voice over WLAN) is -67 dBm. Voice traffic requires a stronger, more reliable signal than data traffic because it is latency-sensitive and cannot tolerate packet loss or retransmissions. A standard data-only network might be designed to -72 dBm (B) or -75 dBm (C), but those thresholds are insufficient for voice quality. -65 dBm (A) is more stringent than necessary and would over-engineer the deployment. -67 dBm (D) is the industry-standard minimum for reliable voice call quality on a wireless network.
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