Bose 700's are good headsets and although there remember eight connections, only two devices can be actively connected at one time... Typically, I have multiple devices active at the same time - at a minimum three different devices (Macbook, Work iPhone, personal iPhone) on which I get frequent inbound calls. Frequently, I have a fourth device I like to keep active - e.g. personal laptop for listening.
Given that Bose 700s can remember eight connections, it would greatly improve usability if I could just pickup a call on a device, and if no other device is streaming to my headphones - the new call is streamed.
Basically - now Bose 700's support two active devices, make it support four active devices.