Bluetooth Voice Becomes REALLY Slow

At least once a day on conference calls via bluetooth headsets (several types - all equal) the voice I hear is slowed down (sounds very deep and is mostly unintelligible).

To fix, I switch to iPhone or Speaker and back or the call simply drops.

The person I am speaking to can hear that my voice has slowed down. (Sounds like when the voice of an informant is masked on tv.)

Other times I will lose all sound coming out of the call, however the call continues. Redialing into the call does not restore the sound. Only way to fix seems to be a hard reboot of the phone.

I have an iPhone 7+ iOS 11.3

Posted on Apr 3, 2018 10:59 AM

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69 replies

Jul 7, 2018 10:38 AM in response to fliebynight

I’ve got the issue with my 6S. Plantronics Voyager Legend headset. One item I haven’t seen mentioned in this thread—it happens when I’m listening to Amazon Music as well. Music slows to a crawl; noticeably catches up, pauses for about 2 seconds, and resumes normally.


I’m giving serious thought to trying the v12 Beta to see if it helps. It’s super annoying with music, but is making calls very unprofessional.

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Bluetooth Voice Becomes REALLY Slow

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