Broadcasting and scanning BLE devices simultaneously

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As I understand it, Bluetooth in general (and hence BLE) uses a "client-server" model. A BT device is either broadcasting as a beacon or searching for them.

Is it possible to have a pair of BT devices operate as peers?

For example, make two devices (say smartphones) work both as scanning and receiving connections at the same time (preferably in background), for proximity-based app's purposes.

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Emil On

Yes since Bluetooth 4.1 devices may be in multiple states at the same time. Most newer smartphones support that.