The user-to-user information (UUI) on SIP devices consists of the Adjunct Switch Application Interface (ASAI) information. This must not be confused with the Integrated Services Digital Network (ISDN) user-to-user information.
The ASAI UUI data includes one or more of the following details:
UCID: a unique 20-digit call identifier
The number of seconds the call waited in the queue, which consists of 4 digits
Information provided by the caller similar to the ISDN UUI
VDN name, which is also provided in the core SIP messaging
Collected digits, which are also provided in the core SIP messaging
The administrator can program the feature system parameters to create a UCID including the UCID network node ID, or any other part of UUI details for the agent.
