You will only be able to pair a Bluetooth device w/ 1 phone at a time. Yes you can use it w/ different phones but not simultaneously.
I am trying to help a friend. She has to carry 2 cell phones at all times. They are the same type of phone, late model Nokia phones, identical. She would like to use one earpiece for both phones. Ia am aware that one earpiece can pair up with multiple phones but, at the same time?. She does not expect to talk on both at the same time time, she just want to carry one "smart earpiece" earpiece. Does anyone know if such Bluetooth piece excists? Thank you.