How to Pair Your Plantronics W740 Bluetooth Office Headset System To Your Bluetooth Mobile Phone Following are instructions for pairing your mobile phone to the Savi W740 base. 1) Press down and hold Bluetooth Pairing Button (see picture) for 4 seconds on Savi base until Bluetooth Indicator LED (see picture) flashes red and blue. The base will remain in this mode for 10 minutes. If it goes off, you … Continued