我有一个htc一个sprint，我最近更新到Android 5.0.2。更新后，我的呼叫现在在角落里说"尝试高清" 。我尝试了"尝试高清Android" ，"尝试高清HTC One" 和"尝试HD Sprint" 的谷歌曲，结果不佳。这是什么？如果我不想要它，我可以禁用它吗？
I have an HTC One with Sprint, and I recently updated to Android 5.0.2. After the update, my calls now say "Attempting HD" in the corner. I tried googling for "attempting hd android", "attempting hd htc one" and "attempting hd sprint" with poor results. What is this? Can I disable it if I don't want it?
This icon comes from Sprint's HD Voice feature. The "Attempting HD" icon appears in all calls, but the feature only activates on Sprint-to-Sprint calls where both devices are supported.