CID ⇝

Caller ID

(communications)   (CID) A short piece of text transmitted by some telephone systems describing the origin of a call, e.g. the name of the caller. Some telephone handsets can display this. A computer telephony integration system might use it to trigger actions on the callee's computer such as looking up the caller in a database and displaying their details on screen.

There may also be a separate "caller id number" giving the telephone number of the originator of the call.

Last updated: 2008-04-30


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