'Do Not Disturb' feature grayed out.
Hi, am having problem with the Do Not Disturb feature on Bluetooth.. It is permanently grayed out and I cannot turn it on or off. The result being that all calls are sent directly to voicemail. Have tried 3 different i phones , with the same result. I can make calls ok and stream music . Anybody else have this problem , or have a solution ? Thanks in advance.
2017 MKC Black Label.