Watch take over main option for making calls

[Android Central Question]

After reseting my phone (galaxy note 5) on every call which I'm trying to make, the default voice output is bluethoth.
Before cleaning the phone it was better, the gear watch was connected to the phone and allowing me to chose if I want to change the voice output but by default it was the phone (if I answered incoming call trough the phone automatically the voice output was the phone).

Any clue?

Regards,
Lior.