Blue tooth and hearing aids
I've been having problems with Bluetooth connectivity to hearing aids. I've tried to different brand of hearing aids, including Widex and Oticon. Both have the same issue. Currently using most recent operating system but this spans previous operating systems as well. My current iOS version is 17.3. All firmware has been updated on hearing aids, so this is not the issue. What occurs in my case is that Bluetooth phone calls cut in and out during the conversation particularly when the conversation goes on for several minutes. As the length of the call increases the problem worsens. I've tried turning off all notifications, making certain that apps are not running while on a call, paired the hearing devices multiple times, resetting network settings, resetting all settings on the iPhone, turned Wi-Fi call assist of off and on with no results, rebooting the phone, turned on and off hearing aid compatablilty settings, made sure that blue tooth was only connected to the hearing devices with routing always to hearing devices, made sure that no other devices are bluetooth paired to the phone just to name some of the things tried. A hard reboot on the phone fixes the problem for a few hours, then it returns. Hearing aid companies are unable to solve the issue. Of note, I can stream music via Bluetooth directly to my hearing aids without interruption. Never a missed beat with music only with phone calls. The problem is not location specific and 4 bars on the cell service is noted, so not a cell tower problem. My suspicion is that this is either a setting on the iPhone or something inherently wrong with a bug in the iOS regarding bluetooth connectivity with hearing aids. This significantly impacts my work and would greatly appreciate Apple looking into the problem. Looking at forums, Internet, search, and every avenue I have not been able to find a solution, but I've seen similar problems across Internet posts.
iPhone XS, iOS 17