Administering the MERLIN Identifier Database
Advantages of Using the
Wild-Card Character
Using one or more wild-card characters offers the following
advantages in storing telephone numbers in the database and
displaying Caller ID information:
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Each wild-card character used in a telephone number
replaces 10 individual digits (0 through 9)—thus a single
wild-card character has the potential to reduce the
database by 9 records, two wild-card characters have
the potential to reduce the database by 99 records, and
so on
Selected ranges of telephone numbers could be assigned
to a single record
All telephone numbers within a calling exchange could be
represented by just a single database record
All telephone numbers within an area code could be
represented by just a single database record
The following examples show how the wild-card character can be
used to address business needs.
Example 1:
A local delivery service in the 901 area code has
been monitoring its telephone calls and finds that a significant
number of calls involved telephone numbers 555-4100 to
555-4199. A further check reveals that a single company uses all
100 of those telephone numbers. To use a single database record
to represent all 100 of the company’s telephone numbers, a caller
record with telephone number
901-555-41??
and the
company’s name has been set up in the MERLIN Identifier
database. Now any time a telephone order is placed from
telephone numbers 555-4100 to 555-4199, the delivery service
knows to send the delivery person to the same company.
MERLIN Identifier Database Description
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