title: iOS as BLE Peripheral and Central Mode issues
body: <p>I'm creating new app in iOS using BLE (I'm new to BLE Concept) which need to act as both peripheral and central. I have read lot's of question regarding BLE but I could not find solution for my issues. So, how can I overcome with this issues listed below.</p>
  
  <p>(1). iOS as central &amp; android as peripheral - in this case how to identify the device and which is the unique id for that device, even if I found the list of peripherals around my central it does not have a service data which consists of UUID, Major, Minor value in advertisement packets </p>
  
  <p>(2). iOS as peripheral &amp; iOS as central  - in this case how to send service data with UUID, Major, Minor values in advertisement packets and it should be accessible by iOS central</p>
  
  <p>Help me with whats on your mind, even it might be a small hint/note/suggestion it's highly valuable for me. Thanks in advance.</p>
  
  <p>I expect the outcome in both scenario 
  (1).iOS central &amp; android peripheral
  (2).iOS central &amp; iOS peripheral 
  is to read its service data (UUID, Major , Minor), but the actual outcome is empty service data.</p>