Uniden BTSC1500 English Owners Manual - Page 11

Using the Travel Kit With Two Phones This feature may not be compatible with certain mobile phones. You can connect your travel kit to two Bluetooth devices and use them simultaneously. Set the travel kit into pairing mode and set the phones to search for the BTSC1500 or a handsfree device according to the procedures on page 5. Pair the phones to the travel kit as each phone recognizes it. The display shows RSSI1 and RSSI2 to indicate each paired phone. After the phones are paired, turn the travel kit off and then back on. Using Both Phones  The travel kit stays connected to both phones until a call comes in. If you answer the call, the travel kit disconnects from the other phone for the duration of the call. When you hang up, the travel kit automatically reconnects to the other phone.  Only one phone at a time can be on an active call.  The travel kit plays a different ring tone for each phone so you know which one is ringing. To answer the incoming call, press Multi-function as usual.  All the button functions remain the same for the first phone (the one you paired first). 11