Patent ID: 9479949
Filing Date: 2016-10-25
CPC Classification: H04M,H04W

Claim Text:
1. In a wireless communication device (WCD) operating in a wireless communication system that supports a multiplicity of modes of voice communication quality levels including a particular mode of high quality voice communication, a method comprising: during an existing voice call between the WCD and a different WCD operating in the wireless communication system, transitioning to the particular mode of high quality voice communication in response to a change in operating conditions experienced during the existing call by at least one of the WCD or the different WCD; receiving from a first base station of the wireless communication system a first message that includes a first specific indication confirming that the particular mode of high quality voice communication has become active on an end-to-end basis for the existing voice call between the WCD and the different WCD; and responsive to determining that the first message includes the first specific indication, displaying in a display of the WCD a particular icon signifying that the particular mode of high quality voice communication has become active.