CSR's reference design for the VoWiFi core implements advanced power-saving mechanisms for extended battery life.
Support for Wi-Fi Multimedia Power Save (SMM-PS) mode, in conjunction with a compatible access point, will provide advanced power-saving performance for extended battery life; a standard 1500 mAHr battery will deliver a typical operating life of up to 20 hours talk time, and 400 hours standby for example, when used with WMM-PS compatible access points.