Milford chronicle. [volume] (Milford, Del.) 1878-1974, 1961-06-30
Direct Distance
Dialing Next Spring
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The central offices and their
three figure "ANC" designations
are as follows: Avenue will become
2S4, Deerfield-335, Edgewater-337,
Exter-39S, sieldstone-349. Garden
422, Myrtle-697, National-629, OIL
ive-653, Redfield-4 becomes 1874,
Redfleld-6 changes to 1876. and Tro-
jan becomes SIS, Collins said.
Hartly customers have had "ANC'
since last March.
In most cases these three fig
ures will prefix the last four fig
ures of present telephone num-
bers, the manager added. A few
telephone numbers will have to
be changed because of central Of
fice equipment arrangements.
1--WE will notify customers of
their new ANC number and the ex-
act date of the change-over as
soon as possible" Collins said.
THE new telephone directory,
which will be delivered prior to
the change-over, will list the new
ANC numbers.
The manager urged customers
scheduled for All Number Calling
to keep these changes in mind
should they plan to order new sta
tionery or business cards.
Current nationwide planning en-
visions the eventual changing of
all telephone exchanges to the new
seven-figure "ANC" system, he
added.
Customers and company will
benefit by the advantages of the
new "ANC' system which makes
possible faster and more accurate
dialing of calls.
1T has been demonstrated if ex-
tensive tests that customers can
locate numbers more quickly on
the telephone dial, mainly because
they do not have to change gears
mentally from letters TO figures
and can concentrate on dialing
quickly and accurately" the man
ager stated.
He also pointed out that use of
seven figures eliminates confus-
ion which sometimes arises be-
tween the letter 20" and the figure
20" and between the letter ~
and the figure Il"
In addition. he said. misunder-
standing and INSTRUMENTATION of
central office names will be avoid
ed.
This type of confusion and err
alsafa t.l An4ssa.-
tor time and needlessly tie up
equipment needed to handle the
ever increasing number of calls, "
the manager said. Time and
equipment will be saved in other
operations. as well. notably in the
processing of billing information
where ii will no longer be neces-
sary to translate letters to figures
and in the preparation of reading
of out-of-town call tickets made
up by operators"
The telephone manager said a
major reason for converting to the
"ANC" system is the need for more
central office code combinations
than is presently possible with
central office code names. The new
system makes possible use of 500
figure combinations compared with
a maximum of about $40 name"
combinations, Of which only about
$40 are disable as central Office
names.
After extensive study and test
ing by Bell Telephone Laborator-
les. the All Number Calling" sys-
tenn was placed in service at Wich-
tia Falls. Texas. three years ago,
the manager explained.
Customers acceptance of this
trial was highly favorable and stu
dies indicated that remembering
seven-figure numbers was no more
difficult than recalling name-iigure
combinations.
"Other advantages to the new
system include the simplification
and Standardization of directory
listings and simplification of tele-
phone dials and number plates on
which figures will be larger" the
manager said.
Complete information on all the
changes. All Number Calling and
Direct Distance Dialirfg. will be
published well in advance of the
change-over, he said