Voice Dialing with Plantronics Marque M155 Bluetooth Headset Is is possible to voice dial with Plantronics Marque M155 Bluetooth headset? Yes, you can voice dial with the Marque M155 headset if you are using any of the newer iPhone’s that support Siri. Once the headset is paired to your phone, long press the call control button on your M155 and you will hear … Continued