Dialed Number Identification Service

Dialed Number Identification Service (DNIS) is a service sold by telecommunications companies to corporate clients that lets them determine which telephone number was dialed by a customer. This is useful in determining how to answer an inbound call. The Telecommunications company sends a DNIS number to the client phone system during the call setup. The DNIS number is typically 4 to 10 digits in length.^[1]

For example, a company may have a different toll free number for each product line it sells. If a call center is handling calls for multiple product lines, the switch that receives the call can examine the DNIS, then play the appropriate recorded greeting. Another example of multiple toll free numbers might be used for multi-lingual identification. A dedicated toll free number might be set up for Spanish speaking customers.

With IVR (Interactive voice response) systems, DNIS is used as routing information for dispatching purposes, to determine which script or service should be played based on the number that was dialed to reach the IVR platform. e.g. 0906 123 4567 and 0906 123 4568 may well both connect to the same IVR system but one number may be required to provide a competition service and the other might be an information line. The DNIS is what distinguishes these lines from each other and hence the IVR will know which service to provide to the caller.

See also

• Direct Inward Dialing
• Automatic Number Identification.

1. ^ Waite, Andrew. A Practical Guide to Call Center Technology. p315.

This article related to telecommunications is a stub. You can help Wikipedia by expanding it.v · Categories: Authentication methods Telephone numbers Telecommunications stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем сделать НИР Sandwich Bay Lana Jurčević Look at other dictionaries: dialed number identification service —    (DNIS)    Equipment that recognizes the telephone number of the outbound call being made …   IT glossary of terms, acronyms and abbreviations Automatic number identification — (ANI) is a feature of telephony intelligent network services that permits subscribers to display or capture the telephone numbers of calling parties. In the United States it is part of Inward Wide Area Telephone Service (WATS). The ANI service… …   Wikipedia Telephone number — A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network. When telephone numbers were invented, they were short as few as one, two or three digits and were… …   Wikipedia Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …   Wikipedia Toll-free telephone number — A toll free, Freecall, Freephone, or 800 number is a special telephone number, in that the called party is charged the cost of the calls by the telephone carrier, instead of the calling party. The cost of the call to the called party is usually… …   Wikipedia Vertical service code — A vertical service code or VSC is a special code dialed prior to (or instead of) a telephone number that engages some type of special telephone service. Typically preceded with an asterisk, or * (star), key on the touch tone keypad and… …   Wikipedia DNIS — Dialed Number Identification Service (Computing » Telecom) * Directory Number Identification Service (Computing » Telecom) …   Abbreviations dictionary DNIS — Dialed Number Identification Service Telefonie …   Acronyms DNIS — Dialed Number Identification Service {Telefonie} …   Acronyms von A bis Z Direct inward dialing — (DID), also called direct dial in (DDI) in Europe and Oceania, is a feature offered by telephone companies for use with their customers private branch exchange (PBX) systems. In DID service the telephone company provides one or more trunk lines… …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”