The link between headset and smartphone happens easily via the Bluetooth interface and work with my Samsung Galaxy S3 Mini immediate problems over several meters distance.
The sound quality is extremely good and excellent speech intelligibility.
If you call, this is signaled not only by ringing of the phone, but also the headset.
All in all you get with the Jabra Headset an inexpensive but very elegant and high quality product that offers excellent handling and excellent voice transmission.