The TSPS system utilized special analog trunks that originated at Class 5 End Office circuit switch systems and Class 4 Toll Access circuit switch systems that were connected to Class 3 Primary Toll circuit switch systems such as the 4A-ETS / PBC and 4ESS switch systems.

The TSPS system did not perform switching between the originating end office switch and the toll switch for the subscriber voice path.

The TSPS system included a feature known as " Remote Trunking Arrangement " or ( RTA ) that consolidated the trunk connection at the originating switch and provided a switched connection to a telephone operator only as required for a short duration at the beginning of a call to obtain billing information or at the end of a call in which the caller requested " time and charges ".

See the Bell System Technical Journal for several articles on the TSPS system and RTA enhancement.

The TSPS system provided a temporary switched connection to a Toll Operator who helped facilitate calls requiring human assistance such as Person-to-Person, Collect, Third-Party-Billed, and Hotel Billing.

The TSPS system supported up to seven " Chief Operator Groups " ( COGs ) with each COG supporting up to 31 operator consoles.

The TSPS system included the " Hotel Billing Information System " special feature to provide automated billing of long distance calls from hotel front desks so guests could be charged for calls made almost immediately prior to their departure.

* TSPS system history

In addition, Twistor was used in the Traffic Service Position System ( TSPS ), Bell's successor to cord telephone switchboards which controlled call handling and coin collection for local and international calls.

Traffic Service Position System ( TSPS ) was developed by Bell Labs in Columbus, Ohio to replace traditional cord switchboards.

The first TSPS was deployed in 1969 and used the Stored Program Control-1A CPU, " Piggyback " twistor memory ( a proprietary technology developed by Bell Labs similar to core memory ) and IGFET Insulated Gate Field Effect Transistor solid state memory devices similar to DRAM Dynamic Random Access Memory.

Debuted in Phoenix, Arizona in 1977 the Automated Coin Toll System or ACTS was an addition to TSPS which provided an automated way to perform charge advisory and toll collection of coin paid calls-reducing the need for operator involvement.

The Traffic Service Position System ( TSPS ) was an early method of providing such service.

Cord switchboards used for these purposes were replaced in the 1970s and 1980s by TSPS and similar systems, which greatly reduced operator involvement in calls.

), and then release the call to be automatically handled by the TSPS.

In the 1970s, toll centers were modified by adding TSPS.

During the era of TSPS systems, calls to mobile and marine radiotelephone customers were initially handled by operators at a Special Operator Service Treatment cord board.

The ACTS sub-system of TSPS handled the automated voice announcements (" Please deposit 5 cents for the next 3 minutes " ( all voiced by Pat Fleet )) and worked with TSPS for coin deposit ( start of call ) coin collection / coin return ( at end of call ).

* 1977 Bell System commercial ending with TSPS operator From YouTube.

TSPS allowed telephone companies to close smaller toll centers and consolidate operator services in regional centers which might be hundreds of miles from the subscriber.

For international dialing, TSPS provided the extra computer power.

TSPS handled the gateway codes and other complexities of toll connections to the gateway office.

As of October, 2008 some remaining TSPS and ESS installations continue to provide telephone service in rural areas of the United States, as well as Mexico and Colombia where many U. S. systems were sold and re-installed after being removed from service in the United States.

( That corpus of law was a reflection of the power system in existence during the eighteenth and nineteenth centuries.

Bluntly, there never was a Ptolemaic system of astronomy.

Thus, Margenau remarks: `` A large number of unrelated epicycles was needed to explain the observations, but otherwise the ( Ptolemaic ) system served well and with quantitative precision.

This system was dependent upon identical maps and Thomas supplied them from a mobile lithograph press.

He was the first of 2,800,000 called to the Army through the selective service system.

The Suez-Hungary crisis proves that this system was not invented by the new Administration, but only made more consistent and more active.

Behind were privies, for there was no sewage system.

Considering the high cost of the F-108 system -- over $4 billion for the force that had been planned -- and the time period in which it would become operational, it was decided to stop further work on the project.

Several efforts were made in this direction, and though not all of them survive to this day, the Brown & Sharpe wire gage system was eventually adopted as the American standard and is still in common use today.

As the Juniors entered the ring, Mr. Spring, the announcer, stated over the public-address system that this was the 28th year that Westminster has held the Finals of the Junior Competition.

) This is the same system as was used in the field-sequential color-TV system which preceded the present simultaneous system.

In working out the practical legal conclusions President Waters was not thinking only of this pilot project, for it is planned to duplicate this program or system in other builder developments nationally.

The magnetic resonance absorption was detected by employing a Varian model Af broad line spectrometer and the associated 12-inch electromagnet system.

-- Matheson highest purity tank chlorine was passed through a tube of resublimed Af into an evacuated Pyrex system where it was condensed with liquid air.

This chlorine-carbon tetrachloride solution was illuminated for a day following which the flask was resealed onto a vacuum system and the excess chlorine distilled off.

The numbering system used in Tables 1 and 2 and Figures 1 and 2 was continued for the 21 growth centers.

The whole system was again reviewed and reorganized in 1933.

The system was not well adapted to conditions of life in urban centers.

The system tended to break down during the war, but was reactivated ; ;

The same system, with minor modifications, was developed in Ruanda-Urundi under Belgian administration.

Final ratings were made on the basis of a point system which was developed after studying the distributions of actual behaviors recorded and assigning weight values to each type of behavior that was deviant from the discovered norms.