This has been a problem from day #1. Incoming calls work fine, but when making outgoing calls the other party cannot hear me. I’ve done a complete clearing out of everything and reinstalling and it has not corrected the problem. This is a very problematic issue as I cannot make calls myself when using Carsifi.
I’ve found out that additional bluetooth devices capable of calls interfere. For me, I’ve disabled calls on my smart watch and I disconnect Bluetooth headsets before connecting to Carsifi. Give this a try to see if it helps you too.
This is most likely because your phone is connected to both the carsifi and the bluetooth on the stereo - and whichever channel it’s chose for the mic/speakers isn’t the one your stereo is set to. Try disabling call audio on the car bluetooth connection, or removing the car bluetooth entirely if it’s not needed.