Constant Tone Extension GATT Service (Silabs proprietary)#
Constant Tone Extension GATT Service reference implementation for extended advertising. This Silabs proprietary solution uses the same characteristics as the standard Bluetooth SIG solution. Limitations:
- The Bluetooth SIG specifies to maintain a list about the characteristic values for each client and take the largest/smallest value. Instead of this, the latest valid value will take effect. 
- The Advertising Constant Tone Extension Transmit Duration characteristic is not implemented. 
- The AoD mode parameters are configured globally in the Constant Tone Extension GATT Service (Connection) component.