DE3329307A1 - Process in a telephone system for the connection of mobile subscriber terminals - Google Patents

Abstract

The invention relates to a process in a telephone system for the connection of mobile subscriber terminals which can be reached by radio-paging and in which a call-back requirement can be stored by means of a permanent subscriber station. The object of the invention is to make the call-back procedure particularly user-friendly. This is achieved by storing in the memory of the mobile subscriber terminal not only the requirement for call-back but also the address of the person requiring the call-back. At a permanent station, after dialling an identification code, the mobile subscriber can give through the stored address at voice frequency by holding his station against the receiver of the permanent station and consequently initiate direct dialling to establish a connection. The subscriber can also enter as a fixed input at the mobile station itself an address by which he can, for example, reach a "mailbox address". With the process according to the invention, a simple operating procedure is possible.

Description

Method in a telephone system for connecting

mobile subscriber terminals.

The invention relates to a method in a telephone system for Connection of mobile subscriber terminals, in particular connected via radio links mobile radio pagers, with a connection request from a subscriber to a fixed subscriber station to the owner of a radio pager the subscriber number the calling station is stored in a memory of the pager and wherein the owner of the pager after displaying a connection request the desired callback via e.g.

makes a phone booth.

In the case of the aforementioned telephone systems, it is known (The mobile paging service starts up in Sweden - TELE 30 1978/1, pp. 4 to 7) that in the communication system both a wired network and a radio network to the central fixed Storage device of the telephone system are connected that this storage device is used to handle both incoming and outgoing connections from the radio network to build in the wire network and vice versa and that with a mobile subscriber terminal a memory device is also provided, which stores the when an incoming Call from the fixed central facility with transmitted subscriber number of the calling subscriber, with several subscriber numbers in succession can be saved by calling subscribers.

The mobile subscriber can then select an identifier, for example to reach the fixed central point and dial the subscriber number displayed on him of a calling party to establish the connection.

In the present case it is the case with the mobile subscriber terminals to pure pager, which only the call of a fixed subscriber station and thus indicate a callback request, the callback then with the help of a stationary Subscriber station (phone booth) is made.

The object of the invention is the structure of such Make the callback connection much more user-friendly.

The solution to the problem is that, especially in the case of stationary Switching devices with multi-frequency dialing proceed according to choice when calling back a special identifier at the fixed subscriber station (telephone booth) and after pressing a button on the microphone of the stationary Subscriber station held pager stored in the pager's memory stored subscriber number of the subscriber requesting the callback automatically audio frequency from the memory via the microphone into the switching facility is entered for the purpose of establishing a connection.

The advantage is that only by e.g. choosing a constant Combination of digits at the fixed subscriber station and subsequent actuation the callback connection is established by pressing a button on the radio pager.

Another advantageous development of the method consists in that after the choice of the special identifier at the fixed Subscriber station and pressing another button on the pager automatically with an identifier permanently assigned to the radio pager, a permanently storable one Subscriber number is transmitted to the switching facility.

This has the advantage that the pager owner with e.g. a push of a button on the radio pager automatically always connection with a certain subscriber station receives, for example a sp-mentioned Represents "mailbox" for messages intended for him.

Another advantageous development of the method consists in that identifying several callback requests that have arrived in succession in the pager Subscriber numbers can be stored.

This has the advantage that the pager owner does not necessarily have to go to a fixed station for every callback request, or that further callback requests were added on the way to a phone booth can be and that the owner of the pager is the first to be called back Can select participants.

Another advantageous development of the method consists in that the radio pager is assigned a control device which has a built-in The microphone evaluates the audible tones supplied to it.

The advantage is that if there are several stored Subscriber numbers after an initial connection attempt by the pager owner and receipt of a busy tone from the Switching facility automatically by saving the next stored subscriber number a connection attempt leading there is made.

An advantageous further development of the method consists only in that for subscriber stations (telephone booths) with the possibility of billing or the exclusive use (data terminals) with user ID of the radio pager or a part of the same is designed so that it is in the slot for the user card can be inserted and that when inserting the radio pager one in the Radio pager permanently stored to him assigned by the charging facility the switching facility or the device to be operated evaluable identifier and if a connection is required, the stored subscriber number of the subscriber requesting a callback is given.

This has the advantage that the pager can be used at the same time as an ID for billing fees, as an authorization ID and as an aid to Connection is used.

The method according to the invention is explained in more detail below.

It is assumed that a wired telephone network with a localized central point (switching facility), which Has access to a radio network with mobile radio pagers as subscriber stations. Call connections are made to the individual from subscriber stations in the telephone network Pagers possible while the pager owners make the return connections fixed subscriber stations to be called by fixed wired partial subscriber stations build up. If a subscriber from a fixed station wants a pager reach, then he dials the subscriber number for the fixed switching device of the pager. The fixed subscriber station is there in a known manner identified and to the desired pager there is both a visual and / or acoustically displayed call as well as the subscriber number of the calling station transfer. The subscriber number is stored in a memory provided for this purpose.

If the pager owner has recognized the call, then will For example, he would go to the nearest phone booth. After inserting money and removing it of the handset and choice of a choice to be made by a pager characterizing He presses a digit sequence on his radio pager. Through the sequence of digits - which is always the same and therefore easy to remember - is in the switching facility or at the subscriber station, for example, a receiver for a multi-frequency push-button dialing method connected to the microphone of the handset and the one held over the microphone The radio pager gives the subscriber number over a small loudspeaker, for example of the subscriber originally calling and wanting a callback via the microphone to the switching facility.

The pager's memory may be designed so that it also the subscriber numbers of several stationary stations calling one after the other can save. In such a case, the number of stored subscriber numbers optically displayed and, for example, by pressing a button on the radio pager, one after the other the individual participant numbers can be made visible on a display. The at Letting go of the button Participant number remaining in cash is then the first number that is used in the previously described operating method for establishing a back connection issued by the pager. In this way, the owner of the Pager the order in which the pending callback requests are dealt with determine.

A control device can also be built into the radio pager be able to evaluate certain ringing tones via a small microphone. There are several Subscriber numbers for the purpose of recall in the pager memory and comes a busy signal when a connection is requested, this is evaluated in such a way that automatically attempts to connect to the next participant number.

This is especially interesting when making the choice, for example done with the help of a credit card.

If the pager owner has a specific subscriber number, which he often calls without a callback request, for example because under this Subscriber number in a kind of mailbox procedure. Notes for him on a tape can be recorded, then there are special memory locations in the pager provided, in the one permanently assigned to the recipient identifier and the aforementioned Subscriber number are stored. The pager owner then has just like before the device to the microphone of the stationary subscriber station hold (after switching on the DTMF receiver in the exchange or the station) to establish the connection when a corresponding switch is pressed.

Another variation of the method according to the invention consists in that the radio pager is already very small for example one side is so flat that it fits into the slot for credit cards can be pushed into modern telephone booths. In this case he takes over after taking off of the handset at the fixed subscriber station both the billing of the Fees as well as a receiver present in the slot, the delivery of the ID and the desired subscriber number. At the same time he can act as an identifier intended for use by others only for the owners of such pagers Data devices apply.

From the above it can be seen that with the help of the invention Procedure made the operation of a mobile radio pager much easier can be.

5 claims

Claims (5)

Claims method in a telephone system for connection from mobile subscriber terminals, in particular connected via radio links mobile radio pagers, with a connection request from a subscriber to a fixed subscriber station to the owner of a mobile radio pager the subscriber number of the calling station in a memory of the pager is stored and the owner of the pager after the display of a connection request on his pager, the desired callback via e.g. a phone booth, d u r c h e -k e n n n z e i c h n e t that especially in the case of fixed switching equipment with multi-frequency dialing procedure when calling back after selecting a special indicator on the stationary Subscriber station (telephone booth) and after pressing a button on the radio pager held up to the microphone of the stationary subscriber station, the subscriber number of the den stored in the memory of the pager Callback of the subscriber who wants to call back automatically from the memory in terms of tone frequency the microphone entered into the switching device for the purpose of establishing a connection will. 2. The method according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that after choosing the special identifier at the fixed subscriber station and pressing another key on the pager automatically with a the pager permanently assigned identifier a permanently storable subscriber number is transmitted to the switching facility. 3. The method according to claim 1, d a d u r c h g e -k e n n z e i c h e t that there are several in the pager arrived one after the other Callback requests identifying subscriber numbers can be stored. 4. The method according to claim 1 and claim 3, d a d u r c h g e k e n n n n e i n e t that the radio pager has a control device is assigned, which evaluates audible tones supplied to it via a built-in microphone. 5. The method according to claims 1 to 4, d a -d u r c h g e no indication that for subscriber stations (telephone booths) with the possibility billing or exclusive use (data terminals) User ID of the radio pager or part of it is designed in such a way that that it can be inserted into the slot for the user card and that at Insertion of the pager is a permanently stored in the pager im assigned by the charging facility of the switching facility or the device to be operated evaluable identifier and in the case of a desired connection establishment the stored subscriber number of the subscriber requesting a callback is given will.