Telephonic communications – With usage measurement – Call traffic recording or monitoring
Reexamination Certificate
1999-08-13
2002-07-09
Tieu, Binh (Department: 2643)
Telephonic communications
With usage measurement
Call traffic recording or monitoring
C379S035000
Reexamination Certificate
active
06418208
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
National (for example G10 Law, telecommunications monitoring regulations, and telecommunications law) and international laws require operators of a public (in future probably also of a private) network to make technical preparation to permit relevant authorities (i.e. law enforcement and secret service) to monitor the telecommunication traffic of suspicious persons in accordance with statutory regulations. The monitoring must be performed in conventional fixed networks just as in, for example, mobile networks and intelligent networks. In the case of the classical telephone services in the fixed network, the appropriate subscriber data record is marked for this purpose in the local exchange of the subscriber to be monitored, and a type of conference service is set up to the relevant authority.
One or more items of the following data are to be transmitted to the relevant authorities depending on the national legislation (the following list lays no claim to completeness):
a content of the communication;
a call number of the calling party;
an intelligent network number of the calling party;
a location of the calling party (for example in the case of mobile radio);
a calling number of the called party;
an intelligent network number of the called party;
a location of the called party (for example in the case of mobile radio);
the time of the start of the communication;
the time of the end of the communication;
a duration of the communication; and
the services used.
For reasons of data protection, but also because of performance, no more data should be transmitted to the relevant authority than necessary. The selection of the data which is necessary and/or can be authorized can vary, depending on the reasons for the monitoring, on the gravity of suspicion against the monitored party, or on the type of relevant authority. For example, a two-stage procedure is prescribed in the USA, firstly only the call data is communicated, and the transmitted content of the communication are not communicated until after a further decision by the official party. Furthermore, there are different national provisions according to which, for example, the relevant authority is informed only in the event of a successful call set-up or else, for example, if the line is engaged or when the handset is not picked up. It is also possible that only specific type of services, for example only data services, are to be monitored.
The solutions to date are static, that is to say it is not possible to make a case-specific selection from the data transmitted to the relevant authority. The invention aims at a different solution, which permits a case-specific selection from the data to be transmitted to the relevant authority.
SUMMARY OF THE INVENTION
It is accordingly an object of the invention to provide a method for controlling the statutory monitoring of telecommunication traffic that overcomes the above-mentioned disadvantages of the prior art methods of this general type. With the foregoing and other objects in view there is provided, in accordance with the invention, a method for controlling a statutory monitoring of telecommunication traffic, which includes providing in a network component a data base storing information determining which communication-relevant data are to be transmitted to relevant monitoring authorities for subscribers to be monitored.
In accordance with a concomitant feature of the invention there are the steps of defining monitoring profiles stipulating in each case which of the communication-relevant data are to be transmitted to which relevant monitoring authority of the relevant monitoring authorities; and storing for a subscriber to be monitored one monitoring profile valid for different relevant monitoring authorities.
In the alternative one can store for the subscriber to be monitored a plurality of the monitoring profiles valid for the different relevant monitoring authorities.
Other features which are considered as characteristic for the invention are set forth in the appended claims.
Although the invention is described herein as embodied in a method for controlling the statutory monitoring of telecommunication traffic, it is nevertheless not intended to be limited to the details discussed, since various modifications and structural changes may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.
The construction and method of operation of the invention, however, together with additional objects and advantages thereof will be best understood from the following description of specific embodiments.
REFERENCES:
patent: 5799061 (1998-08-01), Melcher et al.
patent: 5825769 (1998-10-01), O'Reilly et al.
patent: 196 17353.1 (1995-05-01), None
patent: 196 38 970.4 (1995-05-01), None
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Gundlach Michael
Morgenroth Andreas
Barnie Rexford
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Stemer Werner H.
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