You do not need to do anything to reconnect your TomTom BRIDGE to your phone.
Your TomTom BRIDGE will remember your phone and will find it automatically when you have Bluetooth tethering switched on and you are in range of your device. If you have a valid TomTom services subscription, the service starts automatically.
On the TomTom BRIDGE Status bar, check that the TomTom BRIDGE is connected to the internet.
If you want to connect using another phone, you must connect using Bluetooth for that phone.
Tip: If reconnecting automatically to your smartphone using Bluetooth doesn't work, you can manually reconnect as described in Connect using Bluetooth.