Method for transferring data into a data input during a telephone connection established over an interoffice trunk
AssigneeSiemens Aktiengesellschaft
InventorRobert Vanderbusse
Life of this patent
Estimating the term…
Abstract
A method of operating a switching arrangement for a telephone system is described which permits the seizure of data input equipment in an exchange during a telephone connection between two exchanges. Provision is made for dialing a code number after connection of the central control and repeater and controlling the initial and final instants of loop interruption to the other switching center. This initiates operation of the central control at the end of a time lag switching through the interoffice trunk for the transfer of data.
Claims1
In a telecommunication switching apparatus comprising a central control, a digit interpreter and an exchange repeater, said exchange repeater including means for initiating call-back connections between subscribers connected thereto and holding the connection to the central office subscriber in a waiting position, a method of operation comprising the steps of:
- initiating a call-back connection by dialing a special dial code,
- disconnecting a holding circuit of a waiting subscriber after initiating said call-back connection,
- starting a timing device responsive to said disconnecting step, said timing device determining the period of interruption of the holding circuit and
- through connecting, under the control of the timing device, a transmission path for data transmission between said telecommunication switching apparatus and a public exchange.
Dependencies are inferred from the claim text.