Good news! Boldbeast Call Recorder can record calls perfectly in two directions on Motorola Nexus 6 Android 5.0 Lollipop and 6.0 Marshmallow. Root is needed.
Please install Boldbeast Recorder V7.3 or newer versions, use following settings to record calls:
- Record Mode: 1
- Tune Audio Route: No
- Change Audio Controls: Yes
- Change Audio Driver: No
- Start Input Stream: Yes
Now your Nexus 6 records calls perfectly.
Boldbeast Recorder V9.0 has been released, Nexus 6 Android 5.0, 6.0, 7.0 all work great.