HD是指运营商推出的开启4G+时可以使用VOLTE进行通话的语音通话方案。如果手机上出现HD的标志就说明手机支持“VoLTE”高清语音/通话功能,并且在移动网络中启用了volte增强通话质量选项。如果不需要可以参考下面方法关闭;以华为手机操作为例:
1、首先打开手机,可以发现wifi旁边出现了HD。如图。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/96dda144ad345982032d7ded1cf431adcbef842e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、然后点击手机“设置”。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0d338744ebf81a4cde9574b6c72a6059252da62e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、然后点“更多”。如图。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/7aec54e736d12f2e7ca1361f5fc2d5628535682d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、然后点击“移动网络”。如图。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b17eca8065380cd73dba3a92b144ad345982812d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、然后点击图中红框中的位置。如图。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/730e0cf3d7ca7bcb8fdf5f50ae096b63f624a82d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、然后点击关闭。如图。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/8718367adab44aed7cea269ba31c8701a18bfb2d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
7、最后返回桌面,这时候就会发现HD标志没有了。就代表关闭成功了。如图。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/78310a55b319ebc488dceee69226cffc1e17162c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
本回答被网友采纳