A) In OSCall client interface, click "MENU" key to following Fig.1. Click "Connect OSCall" for "Bluetooth permission request" pop up, select "Yes" and following Fig.2 appears. "Click Scan for devices" to search Bluetooth devices within 10m.

B) From the searched device list, select the OSCall Bluetooth device connection, enter pairing code (as shown in the following figure), and enter the password of the Bluetooth (default Bluetooth password: 1234), and the connection is successfully completed.
Note: For safety, it is recommended to change the PIN and name of OSCall device. The battery compartment of each OSCall device is labeled with its Bluetooth address. Please refer to the Bluetooth address for searching if device can not be confirmed.