WLAN Requirements for VoWiFi

WLAN Requirements for VoWiFi

RF signals are measured in units of “dBm”, with a signal of 0 dBm being the strongest, and signals of -100dBm and below being the weakest. As a general rule, VoWiFi should maintain:

  1. A minimum signal strength threshold of at least -67dBm.
  2. An SNR (Signal to Noise Ratio) of 25dB.
  3. Each access point creates a coverage cell. These coverage cells should overlap one another by 10 to 15% in areas where roaming may occur. In these overlapping areas a minimum of -65dBm should be received on the Data applications by at least 2 access points to provide smooth roaming.
  4. A MCS 7/15 64-QAM 5/6 should be maintained on the client devices