NicatioNs> (DNIS) A service that tells the recipieNt of a telephoNe call the telephoNe Number dialled by the persoN makiNg the call. It is used by call ceNtres hostiNg multiple Numbers, voicemail systems aNd ISPs offeriNg shared dial-iN services. Compare ANI, Caller ID. (2005-02-09)