Translation of "Rufenden teilnehmer" in English

A corresponding busy signal is emitted to the calling subscriber in a known manner.

The connection set-up messages spread out in every direction from the calling subscriber to the called subscriber.

In the event of an automatic breaking off of the establishing of a connection, the calling A-subscriber can be sent a corresponding indication.

The called subscriber then has the possibility of setting up a connection to the calling subscriber.

In the following, the transmission of the arriving message characters from a calling subscriber over the incoming line Le1 to five called subscribers will be described.

After-work tariffs and night tariffs and holiday tariffs cause the telephone subscribers to make their telephone calls not only during typical main traffic times, but also at times of day, and on calendar dates, at which lower charge metering pulse frequencies apply for the same call distances, which results in the advantage of a saving of costs for the calling subscriber.

Further, via the switch 2u, the monostable switching device St is briefly actuated in the special connection set means S-VS and thus via switch means st positive potential is applied for example at one of the conductors of the exchange line to the calling subscriber, so that in the station Stat, the switching-over device Um (FIG. 1) responds and with the simultaneous switching over to a latching circuit, the data terminal FS located there, via the modem MOD of the data transmission device DUE, switches onto the subscriber exchange line L and starts.

This audible signal, or corresponding message, can be emitted via the metering pulse generator across which a trunk telephone connection has been established, directly following the arrival of the answer characteristic and before the final switch through of the connection to the calling subscriber.

Subsequently, the connections of the calling subscriber to the called subscribers are produced via the respectively identified free time slots.

A switching matrix of mirrors that can be electromechanically switched in position and, therefore, switched on and off, so to speak, is also known for the exchange-oriented structuring of LWG connections between LWG subscriber lines (see VDI Nachrichten, No. 36/7. September 1984, p. 17), whereby control signals output by the calling subscriber via his LWG subscriber line proceed from the switching matrix via small glass strips in the beam path to a selection evaluation device that initiates a control system to actuate a mirror in the path of the appertaining subscriber.

Dependent on the operating mode, he either receives information regarding who wishes to reach him or he is directly connected to the calling subscriber only on the basis of this report.

The central controller CC through-connects the connection between the calling subscriber and the called subscriber via the switching matrix network SN in that it connects the exchange set AS to the subscriber set TLN at which the sought subscriber has answered.

When the called party, having a secret subscriber equipment wishes the display of his subscriber equipment data at the calling subscriber, then he achieves the same by activating the identification function proceeding from his subscriber equipment.

After selecting the identifier information at an arbitrary telephone set, the connection is through-connected between the waiting, calling subscriber and the answering subscriber.

Given non-acceptance of the information processing requests, it is effected in the subscriber-associated or call-associated switch device, for example in a subscriber line circuit, selection reception set, local call switching circuit or line termination circuit of a trunk line occupied incoming or outgoing, that, on the one hand, a corresponding audible signal, for example a busy signal, is transmitted to the calling subscriber and that, on the other hand, an acceptance of further switch identifiers or, respectively, their forwarding to the central and/or sub-central information processing sequential logic system is suppressed.

The establishment of the connection between a calling subscriber in one of the networks N2, N3 and a called subscriber in the first network N1 will be discussed later.

The selection numbers chosen after this by the calling subscriber are accepted in the usual manner by the line monitor device L-Ue of the special connecting set means S-VS, and via the control line w are given over at the switching device I of the special facility ZSE.

The other digits dialed by the calling subscriber following the traffic distinguishing digit represent the local code number which consists in known fashion of three or four digits.

This special code number can be dialed by a calling subscriber and, in fact, following the traffic distinguishing digit zero, and prior to the local code number.

In communication system in which a change of the call destination, for example, by call rerouting, call forwarding, is possible without initiation by the calling subscriber, the communication system controller that executes the change of call destination reactivates the inhibit information by overwriting or erasing the identification information.

Accordingly, in the exchange to whose exchange area the interworking unit belongs, this is regarded as a member of a closed user group to which access is possible only by the calling subscriber dialing an access code, this access code being converted, after an authorization check, into the destination number of the network access point.

The invention relates to a method and a device for establishing a connection from a calling A-subscriber to a called B-subscriber in a telecommunication (TC) network that offers IN (=Intelligent Network) services, in particular in a multi-operator environment with IN-supported telephone number portability.