1. DSR TIF User's Guide
  2. TIF Features
  3. TIF Simple Number Substitution Feature

2.3 TIF Simple Number Substitution Feature

The TIF Simple Number Substitution (TIF SNS) feature allows the Calling Party number in the ISUP IAM message to be substituted with a single Calling Party number that is provisioned in a TIF configuration option. The Number Portability is not used in this case.

The TIF SNS feature uses services provided by the Triggerless ISUP Framework (TIF), and provides the following functions:
  • Feature-specific pre-NPP processing
  • Service Action specification (including Service Action names and precedence)
  • Service Action Handlers
  • Feature-specific post-NPP processing