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PBX Calling ID
Calling IDCalling ID represents the digits passed from the carrier (or PABX) to the end user device (or between PABXs) that identify who the caller is.
Otherwise known as:
- ANI (Automatic Number Identification). Note that ANI is usually non-blockable and for some calls such as calls placed on the PSTN to 9-1-1 or toll-free numbers, will be given to the caller even if a calling-id block code is used.
- CID (Calling ID)
- CLI (Calling line identification)
Typically a user can turn off CID sending from their own phone by dialing a feature code. Most corporations block CID or send one common CID for all the phones in their network.
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