Definition

Dialed Number Identification Service (DNIS)

Contributor(s): Doug Foote

DNIS (Dialed Number Identification Service) is a telephone service that identifies for the receiver of a call the number that the caller dialed. It's a common feature of 800 and 900 lines. If you have multiple 800 or 900 numbers to the same destination, DNIS tells which number was called. DNIS works by passing the touch tone digits (dual tone multi frequency or MF digits) to the destination where a special facility can read and display them or make them available for call center programming.

This was last updated in September 2005

Continue Reading About Dialed Number Identification Service (DNIS)

Dig Deeper on Telecommunication networking

Learning Path: Telephony and Wide Area Networks TELEPHONY AND WIDE AREA NETWORKS...circuit - PSTN - Plain Old Telephone Service (POTS) - telephone jacks - dial-up - acoustic coupler - modem - 56flex - 56 Kbps (x2) - handshaking - V.xx standards - local loop - central office - LIDB - dedicated line - BOC - RBOC - Intelligent Network (IN) - Advanced Intelligent Network (AIN) - Signaling System 7 (SS7) - EWSD - erlang (measure of line usage) - frame - frame relay - frame relay access device (FRAD) - ATM - 2600 - ISDN - B-channel - D-channel - terminal adapter - BISDN - HDLC - IDSL - PABX - Direct Inward Dialing (DID) - Automatic Number Identification (ANI) - Dialed Number Identification Service (DNIS) - permanent virtual circuit (PVC) - switched virtual circuit - DSLAM - Voice over IP - VoxML - CAPI - TAPI - splitter - splitterless (DSL) - ATU-R - digital loop carrier View other topics for self-study by visiting our Guide to the Learning Paths.

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

DNIS (Dialed Number Identification Service) is a telephone service that identifies for the receiver of a call the number that the caller dialed. It's a common feature of 800 and 900 lines. If you have multiple 800 or 900 numbers to the same destination, DNIS tells which number was called. DNIS works by passing the touch tone digits (dual tone multi frequency or MF digits) to the destination where a special facility can read and display them or make them available for call center programming.
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchUnifiedCommunications

SearchMobileComputing

SearchDataCenter

SearchITChannel

Close