There is no “typical” battery life for a mobile phone due to the wide variety of models. They are all different and usage varies greatly. An older flip-style phone could last days while an iPhone with Wi-Fi and location services may only last hours.

Common best practices for optimizing battery life on smartphones are:

  • Reduce screen brightness.
  • Reduce time to sleep (shortening the time the phone screen stays lit before blacking out).
  • Choose ring/chime over vibrate (a vibrate motor consumes more energy than a chime).
  • Choose alerts wisely (every chime, notification display and LED blink consumes energy).
  • Reduce the frequency of automatic app updates.
  • Turn off Bluetooth when not in use.
  • Research a battery booster that automatically manages battery optimization based on usage.

ShoreTel Mobility takes this one step further, with built-in battery-optimizing features allowing users to enjoy the advanced capabilities of smartphones without draining their power. So how can ShoreTel Mobility administrators and users extend the battery life on their smartphones?

Enable U-APSD on the WLAN.

Many WLAN vendors now support the WMM Power Save certification that includes power-save mode targeted at applications such as VoIP. This mode called Unscheduled Automatic Power Save Delivery (U-APSD) allows 802.11 devices to operate in a low power mode anytime voice packets are not being transmitted while maintaining an overall low latency. Our tests show some devices yield about double the talk time as a result of enabling U-APSD.

Select the right Power Save Mode for your usage on the RoamAnywhere Client.

In addition to regular power save options on the device, Advance Settings on the RoamAnywhere Client offer advanced Power Save Mode options that users can select. Options are typically Always On, Enterprise Only and Calls only. (Note: This feature is not available on all devices.)

  • Always On: Allows the smartphone to always search for one of the preferred access points and maintains a connection if within the range of the enterprise Wi-Fi network. Selecting this option might reduce battery life.
  • Enterprise Only: If the smartphone is in the range of the enterprise, a Wi-Fi connection is maintained. If the device is not in range of the enterprise, no attempts are made to connect to a preferred access point.
  • Calls Only: If the smartphone is within range of the preferred access point, a connection to the access point is made only when calls are placed or received.


Digital transformation has become a top initiative for business and IT leaders. In today’s business world, sustainable market leadership is no longer based solely on which company has the best products or even the best people. Instead, organizations that are agile and can quickly adapt to rapidly evolving market trends will become market leaders.

Wayne Toigo

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