|VCS Wi-Fi Configuration Best Practices / WLAN Settings|
The current generation of Apple and Android smartphones contain Wi-Fi radios that support both the 2.4 and 5 GHz frequency bands.
The 2.4 GHz band is typically overutilized because there are fewer channels and it is used by more devices. It also has more common interference sources, such as microwave ovens, wireless security cameras, and Bluetooth devices.
It is highly recommended that VCS enabled smartphones be deployed on a voice quality 5GHz infrastructure only.