The following Cisco Unity Express configuration defines two triggers that point to the same application.
The application has a "nightModeCalledNumber" parameter which informs the script which trigger should be used as the entry point for night service mode.
! Day mode trigger
!
ccn trigger sip phonenumber 2001
application "autoattendant"
!
! Night mode trigger
!
ccn trigger sip phonenumber 2002
application "autoattendant"
!
! AA application
!
ccn application autoattendant aa
script "cmenight.aef"
parameter "nightModeCalledNumber" "2002"
!
Here's a link to a
PDF from Cisco.