# Receiving user-to-user information

User-to-user information (UUI) can be presented to the application at any time during a call. When user-to-user information is received, an NCCEVN_EXT_CALL_STATUS_UPDATE event is generated. The value field contains CALL_STATUS_UUI.

The UUI information is available in the NCC_ISDN_EXT_CALL_STATUS structure. It can be retrieved using nccGetExtendedCallStatus.

The application receives the entire information element, including the:

- UUI IE identifier

- UUI IE length

- UUI IE protocol discriminator

- User-defined data