Can't add via pinouts.ru/add_e.html form, gives me an "Document not found or access denied" error.
So get from raamat.polva.ee/ww/Sonim/handsfree.png . May work with older Sonim XP1 too (don't have any). Sonim handsfree uses 2.5mm 4 pin jack, same as SonyEricsson P800/P900/P910i headset connector, only wired differently.
Handfree detected via ~1k resistance between pins 1 and 3 (mic and shield).
Btw, please remove this message after adding information to databas. Thank you.
