2.2.1.1.1.2.3 Device ID
The device ID is specified by the device-id-spec
ABNF
rule portion of the plain text query value. The value, represented by the device-id
ABNF rule, is a string that specifies the
device. Each device MUST have a unique device ID string. The device ID string
MUST NOT contain commas or special characters. Each request from the device
MUST include the same device ID string.