Telephonic communications – Special services – Service trigger
Reexamination Certificate
1998-09-01
2001-10-09
Smith, Creighton (Department: 2642)
Telephonic communications
Special services
Service trigger
C379S229000
Reexamination Certificate
active
06301348
ABSTRACT:
The invention relates to telecommunication networks. The invention relates particularly to a method and system for changing a direction of establishing a telecommunication connection in a telecommunication network in telecommunications between different countries.
The callback or recall service of known systems operates as follows. The A-subscriber calls to the call number of the recall service (service provider) and closes his phone without getting the answer for the call from the service system. Thereafter the service system checks the calling party's right of use for his database and calls back to the A-subscriber, to request the number of the foreign target. The service system then activates the connection to the called target or “C-subscriber” number and after receiving the answering signal, connects the calling A- and called C-subscribers to each other. If either party closes, the call is ended and the service system breaks both connections. The calling A-subscriber is charged for the connection times according to the service provider's own prices and not by the rates of the foreign operator in the calling A-subscriber's location country.
The recall service is effected nowadays generally as follows. The A-subscriber calls to the call number of the recall service and closes his phone without getting the answer for the call from the service system. Thereafter the service system checks the calling party's right of use for his data base and calls back to the A-subscriber who made the call. The service system asks the subscriber, to which foreign C-number he wants to call. After this the service system activates the connection to the called C-subscriber number and after receiving the answering signal connects the calling A-and called C-subscribers to each other. Is either party closes, the call is ended and the service system breaks both connections. The called A-subscriber is charged for the connection times according to the service operator's own prices and not by the rates of the foreign operator in the calling A-subscriber's location country.
Concerning the service operator, a connection is formed in this realization mode, when the service system establish a connection to the calling subscriber in order to ask the C-subscriber number. This is undesirable because the service operator must pay account fees for the connection time beginning from this moment to the foreign operator of the A-subscriber. If the calling attempt is not finally successful, e.g. the C-subscriber number is busy, this connection with the A-subscriber has caused expenditures for the service operator without any profits.
Another alternative comprises that the service offerer can minimize the duration of the supplementary accountable connection by breaking the connection needed for the inquiry of the C-subscriber number immediately after receiving the necessary data for the C-subscriber. Then the service offerer calls again to the calling A-subscriber after the called Csubscriber has answered. A weakness in this solution is that by the coupling of the final connection a delay is caused, which depending on the case may last from seconds to a few dozen of them. Also here extra costs are caused for the service offerer, because the accountable connection to the third party has been established before the connection the customer wants is ready.
The object of the invention is to eliminate the drawbacks mentioned above. The particular object of the invention is to set forth a method and system when offering the recall service in countries, where calling abroad is substantially more expensive than calling from the service offerer's own country to the target country, so that by this method and system the service offerer is able to eliminate the formation of the extra connection time that only causes expenditures.
For the characteristic features of the invention reference is made to the claims.
The basic idea of the invention is that an accountable connection is established only after the called C-subscriber has answered the call, whereat the whole connection time can be utilized and the service operator can charge it from the calling A-subscriber. This is carried out according to the invention so that the desired call establishing direction and connections are formed from the public telenetwork by a separate telecommunication connection and after the connections have been established they will be coupled to the public telenetwork.
Thus by the method according to the invention no costs develop for the service operator offering the recall service in any stage of the call formation, which costs could not be charged from the call subscriber.
In the method according to the invention for changing a direction of establishing a telecommunication connection in a telecommunication network, in which telecommunication connections are made between subscribers in different countries, the A-subscriber introduces the telecommunication connection or makes a call to the service point or number of the service offerer to establish a telecommunication or call to a C-subscriber in another country and in which the establishing direction of the telecommunication connection is changed so that the telecommunication connection is formed first from the service offerer to the A-subscriber and further to the C-subscriber. According to the invention another telecommunication connection is established between the A-subscriber's home country and the country defined by the service offerer to establish connections in the desired direction between the A-subscriber, C-subscriber and the service offerer. This other telecommunication connection is preferably formed between the collection node and the service node operated by the service offerer. The service node is generally located where the service offerer operates or in a country that has advantageously priced foreign calls.
In one preferable embodiment the telecommunication connection introduced by the A-subscriber is connected to the collection node, and the C-subscriber's identification from the A-subscriber is received in the collection node. The identification of the A-subscriber and the C-subscriber is transmitted to the service node using another telecommunication connection between the nodes. A third telecommunication connection is established from the service node to the A-subscriber and a fourth telecommunication connection to the C-subscriber, and when the service node receives the answering signal from the C-subscriber, this is informed to the collection node and a connection is established between the A-subscriber and the C-subscriber. In the collection node the A-subscriber's data for the right of use is advantageously checked.
In one embodiment of the present invention the connection from the service node to the A-subscriber is kept in a standby or call-waiting state, until the fourth telecommunication connection between the service node and the C-subscriber has been established. The other telecommunication connection will also be broken, if the connection establishment from the service node to the C-subscriber fails.
The system according to the invention for changing a direction of establishing a telecommunication connection in a telecommunication network, in which telecommunication connections are established between the subscribers in different countries, includes a first terminal device for introducing the first telecommunications connection to the service providers service node in order to establish a telecommunication connection to the other terminal device in another country and in which system the establishing direction of the first telecommunication connection has been arranged as changeable so that the telecommunication connection is established first from the service provider to the first terminal device and further to the other terminal device. According to the invention the system includes the collection node in the location country of the the first terminal device, which is connected to the public switched telephone ne
Ikonen Jouni
Romo Jorma
Cohen & Pontani, Lieberman & Pavane
Smith Creighton
Sonera OY
LandOfFree
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