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What does CID stand for?

CID stands for Circuit ID (Identification; computing)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Information technology (IT) and computers

See other definitions of CID

Other Resources:
We have 320 other meanings of CID in our Acronym Attic

Samples in periodicals archive:

Since it is possible that a caller may never use the same circuit twice, there is no reliable way to identify the caller by PBX circuit IDs.