OPEL Combo E hands-free – under all Sau

The hands-free device of my combo is probably the last thing Opel (or PSA) still got in China. I understand everything that my phone partner tells me. At the other end, however, I always get the announcement that I should report again when I have arrived. It can’t be. The vehicle is about 3/4 year old, and the communication does not work. The friendly OPEL dealer gave only to the information that this also happens with others – he abe Does anyone have any experience with this?