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What is 'Calling Line Identifier' (CLI)?

Calling Line Identifier (CLI) is an option provided by most telecommunication service providers. This option allows your phone to display the number and/or name (caller ID) of the caller who calls you.

General information

In most cases, a small monthly fee is needed for CLI/Caller ID subscription. If the handset(s) and base station are of different models, CLI may not work correctly.

The information on this page applies to the following models: CD3601S/79 , CD3652S/79 , CD3651S/79 , CD3602S/79 , ID5551B/79 , ID5552B/79 , CD1501B/79 , CD1553B/79 , CD1552B/79 , CD1551B/79 , CD1503B/79 , CD1502B/79 , CD1451B/79 , CD6452B/79 , CD6451B/79 , CD6402B/79 , CD6401B/79 , CD4452S/79 , CD4451S/79 , CD4402S/79 , CD4401S/79 , CD2453S/79 , CD2452S/79 , CD2451S/79 , CD2402S/79 , CD2401S/79 , CD1452B/79 , CD2301B/79 , CD1301S/79 , CD1302S/79 , CD1303S/79 , CD1351S/79 , CD1352S/79 , CD1353S/79 , CD2301S/79 , CD2302S/79 , CD2303S/79 , CD2351S/79 , CD2352S/79 , CD2353S/79 , CD5301S/79 , CD5302S/79 , CD5351S/79 , CD5352S/79 . Click here to show more product numbers Click here to show less product numbers

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