My sound is clear but caller on other end hears a echo of his own voice. HELP?
Its like calling into a radio station going on the air, and having your radio turned up while on the air you will always get an echo. Or at least a delay that other people will hear on their radio. it's the same way, with using a Car Bluetooth because they are hearing their voice coming through the speakers and going back into the microphone and then they hear that and there is your Echo. Unfortunately there is really nothing you can do except for ask them to deal with it :-(