The Command Code is one of the parameters contained in a Diameter message. Command Codes can be used in Peer Routing Rules and Application Routing Rules.
An Extended Command Code (ECC) is a predefined/preloaded command code extension that comprises the following attributes:
- CC value
- AVP Code value
- AVP Data value
This broadens the definition of Diameter Command Codes to include an additional application-specific single Diameter or 3GPP AVP content per Command Code. A format example might be 272.416.1 = CCR/CCA-I.
Note: A parent CC or Base CC is a Command Code without AVP code and Data extensions. All ECCs are extensions of any of the configured base command codes.