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The Bluetooth-enabled Panasonic phone you are asking about can connect to a Bluetooth-capable smartphone or similar device. The basics of a Bluetooth connection must be done, of course:
1. turn On Bluetooth, on both devices. Enable it, turn it On, that sort of thing. (Don't assume it is enabled... often it is disabled after a period of disuse in order to save battery power, or the like.)
2. enable pairing on your smartphone or other handheld device. It must be authorized.
3. locate the heavier of the two devices, from the more portable device (usually. If it pairing doesn't work in that direction, try the other direction if the other device allows it.) Then pair with it.
4. Then being paired, connect.
At which of these steps did you have difficulty?