Then GATT Client Configuration Descriptor.
The maximum number of bytes per packet.
Service UUID used to identify a device as TomTom Digital Cockpit compatible.
The characteristic used to send data from the client to the server.
The characteristic used to send data from the server to the client.
The characteristic used for the session ID. Session IDs are used to detect reinitialization of a service on the server side.
The characteristic used for the version handshake.