Comment 21 for bug 1546310

I have a similar problem on Meizu Pro 5 Ubuntu edition (Factory installed).
OS - Ubuntu 15.04 (OTA-10.2)
I have a "Ford B-MAX" (built in 2013) with factory built-in "SYNC" hands-free.
Phone properly paired, properly synchronize phonebook. I can dial a phone number and I can answer on call using the car's control panel buttons. But it is impossible to talk using the built-in car hands-free system, because of the terrible hissing and speaker's voice can not be understood when the car is in motion or absolutely silent when the car is stopped.

Addition problem - Ubuntu phone does not support SMS writing-reading and SMS text to speech playing in my car. This functionality is fully supported when I use phone by Android version 4 and higher.