title: iOS Blue tooth low energy signal sending in background
body: <p>Is it possible to have an iphone (iphone 1) send out BLE signals in the background with information such as an id number and time sent?  This signal will be read by another iphone (iphone 2) running the BLE app in the foreground.  iphone 2 does not need to communicate with iphone 1.  It just needs to recieve the signal which i know it can, but i'm just not sure if iphone 1 will be able to send out this signal in the background. </p>