Evening journal., 1910-11-22
HOW TELMUSICI
SERVICE WORKS
Music Over the Wire Proves
Pleasing Diversion for
City Phone Users

Probably not one of the many who
make daily use of the automatic tele-
phone, but picks up the receiver with
certain sense OF mystery as to how
It works. During the past two months
80 many additional telephones have
been put In by the Wilmington and
Philadelphia Traction Company, that
the company feel that new as we'll
as old subscribers would like to know
what the automatic service is and
also its adjunct, the Telmusici SER
vice, which is literally music forward
ed over telephone wires. The com
pany wishes to show how they make
| good their claim for absolute Sc
crecy on the automatic telephone
- vice. IN fact an operator could
-. butt IN" II there were such
person. For all these reasons, the
company will give free demonstra-
/ tions, beginning to-day. between the
hours of p. m. and p. M. every
day except Sunday, at No S3S Mar
ket street. Besides pictures of the
dXchange and of the music loom,
all OF the various pieces of appa-
ratus are exhibited. There is a min
dathre exchange on which the
demonstrator will show everything
that happens when a person calls up
a number on the automatic, and there
is a Telmusici receiver and horn,
which will give concerts.
Supposing a person calls up MOI
2345. He puts his finger in the dial
opposite, the 2, brings it down to the
catch, repeating the operation for the
3. and 5, then takes the receiver Off
the hook, and presses the button at
the base Of the instrument
When the subscriber goes through
all this, at the exchange, the three
switches necessary to complete one
call, get busy. Switch, or selector No.
1, takes care of the figures i'm the
thousands. As It is 2 in this case,
two electric impulses move a rod up
to the second story of the switch,
where II revolves sideways over
trunk-line connections until its metal
finger can find one that is open, that
is, not In use by some other sub
scriber. Then Selector No. 2 takes
care OF the hundreds figure, i'm this
case 3, In practically the same way
The third switch, called the connec.
tor. takes care OF both the tens and
units, in this case and 5, and
opens the connection with phone
2345.
With this connection open. wher
the subscriber presses the button al
the base of his instrument, a ground
circuit makes the bell OF 2345 ring I'm.
stantly. Should 2345 be busy, tn,
connector finger cannot stick at tn,
8, but the rod will drop back to nor,
NAL and buzzing sound will come
through the receiver to the ears o
the person calling. Service is instan
taneous, the buzzing indicating actua
use unless 2345 has carelessly left hi
receiver off the hook.
a In the Telmusici service, which /
e used In no other city In the worl
l. than Wilmington, Victor graphic
phone records are used The con
n pany has the first choice OF new Viz
d tor records each month, and is col
n tinually adding new ones. Sewers
= records Of each number in the cats
e log are kept, so that a record
y thrown out when a defect become
d evident.
Equipment is installed free TO sui
n scribers to the automatic service. an
J. they pay "by the piece" On thei
J. telephone they call up the TelmusiC
a operators, who are not automatic
y ragtime, vocal or instrumental. b
8 the number in the catalog. The
II they throw their switch from thei
telephone to their Telmusici receivel
y from whose horn, the music at ono
q proceeds.
/. The operator has placed the recor
asked for on a disk resembling
: graphophone disk. but when the nee
,. die circles around, no music is hear
), at the exchange. The vibrations ar
q transmitted over the telephone wire
u to needle in the receiver at the sui
8 scribers home, and the music come
! through the horn connected with ths
= receiver. Push-buttOns regulate th
a loudness, and the tone is less meta
/ lie than through an ordinary phone
/ graph, besides doing away with th
L expense of records and phonograp
and the work of operating them.
= The Telmusici service has bee
D. in practical use for two years in WI
3 mington though it has been matte
i Of experiment for the last thirt
e years, and is becoming popular.
q has not yet been offered to any othe
! city.