Proxima, Libra firmware ver. 2.12.xx
rev. 2.12.01
CLIR (Calling Line Identification Restriction) is a service that blocks the
presentation of the caller's number. Thanks to this functionality, the number of the
user initiating the call will not be shown even if the other party has the CLIP
function on.
Prefix (or prefix) is a string of digits following the 10XX or 10XXX pattern
(where X stands for any digit), identifying a given telecommunications operator.
Telecommunications operators and the calls made by their customers are identified
within the telecommunications networks by means of assigned prefixes. Prefix is
officially referred to as the network access number. In a sense, prefixes enable
communication between customers and telecommunications networks (owned by
telecommunications operators). By choosing a given prefix, a customer chooses the
operator through the network of which a call is to be carried out.
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