Stack | Bluetooth

“Once paired, the phone asks: ‘What can you do?’ Our earbud replies via SDP: ‘A2DP for high-quality audio, HFP for calls.’ But the HCI mangles the response packet length.”

Her junior engineer, Kai, looked up. “The stack? Like a pile of code?” bluetooth stack

Lena ran a Bluetooth sniffer. “First, our earbud sends an inquiry — ‘Anyone out there?’ The phone replies. That’s layer one working.” “Once paired, the phone asks: ‘What can you do