Quality of Service (QoS) settings for UMA-enabled BlackBerry smartphones

Article ID: KB29906

Type: Support Content

Last Modified: 04-11-2012

 

Product(s) Affected:

  • BlackBerry Curve 9330
  • BlackBerry Curve 9300
  • BlackBerry Curve 8900
  • BlackBerry Curve 8500 Series
  • BlackBerry Pearl 8200 Series
  • BlackBerry Pearl 8100 Series
Jump to: Environment | Overview
CollapseEnvironment
  • BlackBerry® smartphones
CollapseOverview

UMA (Unlicensed Mobile Access) is provided by some carriers as a secure method to connect to their wireless network to make phone calls over Wi-Fi®. However, the Quality of Service (QoS) that is normally managed and ensured by the wireless carrier over their network cannot be guaranteed over every Wi-Fi network even though BlackBerry® smartphones support guaranteed QoS values.

The quality of a call placed through a UMA connection is only as good as the weakest segment of the transport path between the smartphone and the carrier. A BlackBerry smartphone uses the "best effort" setting to allow it to attempt a call over a Wi-Fi network even though that network may not have support for QoS. Therefore, to ensure best results any UMA-capable smartphone will always defer to the capabilities of the network infrastructure it is connected to.

There is no access to the QoS settings on the BlackBerry smartphone and a BlackBerry Enterprise Server has no control over or awareness of the native UMA functions of connected BlackBerry smartphones. Access to QoS settings is provided by the BlackBerry MVS system through the BlackBerry MVS client.

See KB24907 for more details on QoS for VoIP (Voice over IP) and Voice over Internet applications.

See KB25405 for more details on QoS settings for non-voice applications.

Disclaimer

By downloading, accessing or otherwise using the Knowledge Base documents you agree:

   (a) that the terms of use for the documents found at www.blackberry.com/legal/knowledgebase apply to your use or reference to these documents; and

   (b) not to copy, distribute, disclose or reproduce, in full or in part any of the documents without the express written consent of RIM.


Visit the BlackBerry Technical Solution Center at www.blackberry.com/btsc.