Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1995-05-17
1997-01-14
Kuntz, Curtis
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 59, 455 331, H04Q 722, H04Q 724, H04Q 726
Patent
active
055947778
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to mobile communication devices, and more particularly to wireless public branch exchange systems for use with mobile communication devices.
2. Description of the Related Art
The linking of different mobile phones to a wire network dependent exchange can be realized in different ways. The EP-A-462727 presents a mobile communication telephone network linked to a PABX-network. The calls of the mobile telephone subscribers linked to the PABX-network are routed via an intelligent base station controller of the mobile telephone network. The mobile phone can be used as the PABX-extension regarding the numbering, when the mobile phone subscriber is within the coverage area of a base station controlled by a certain base station controller. The physical location of the mobile phone subscriber determines whether he can use the above-mentioned extension numbering. If the subscriber is outside a defined area, he cannot use the extension numbering.
SUMMARY OF THE INVENTION
The aim of the invention is to increase the accessibility of the PABX-group subscribers and facilitate the internal calls within the group. The extension numbering functions in mobile calls between the subscribers of the group within the whole coverage area of the network, thus combining the mobility of the mobile phone subscriber and the easiness of the extension numbering. Moreover, the internal calls within the group can be charged differently from normal calls (e.g. lower charge).
A special application of the invention is the use of wireless connections in a corporation or at a plant area, when most of the calls of the group are made within the coverage area of a certain base station or certain base stations. It would then be beneficial to the user if the call charges in this area are lower than when calling elsewhere. The subscriber's possibility to use the extension numbers in the whole coverage area of the network should still be maintained. The aim of the invention is to resolve also this problem of wireless connections to improve the accessibility of the subscribers.
The system according to the invention provides a decisive improvement of the above-mentioned disadvantages. The intention of applicant's invention is to enable predetermined mobile phone subscribers to belong to the extension numbering scheme of a PABX and to enable a charging procedure different from the normal for internal calls within the group and for calls from the corporate PABX extensions. The linking of the mobile phone subscribers to a numbering scheme of a certain PABX-group enables the internal calls between the mobile phones associated with the PABX-group and especially internal calls with the permanent extensions of the PABX. A certain group of mobile phone subscribers can be defined to utilize the services of the network in the whole coverage area of the PABX-group. The use of the internal numbering scheme is made possible within the whole network area.
The mobile phone subscriber associated with the PABX-group is connected with the PABX-extensions by dialing the extension number only. A mobile phone associated with the group can be reached at the extension number from the PABX. From the same mobile phone, contact can be taken to the public network and to the PABX can be charged separately and based on different tariffs. Calls between the mobile phone subscribers associated with the same PABX-group can be connected either by dialing the normal mobile phone number or the extension number. The charging of the mobile calls can be changed, as the calls are connected as internal PABX-group calls. The charging of the internal PABX-calls can be different from the public network calls as the internal numbering of the PABX is used.
In one embodiment of the invention, the existing mobile phone network can be utilized in a predetermined specific area. The calls within the area can be charged differently from the normal mobile phone traffic "as internal area calls". The internal c
REFERENCES:
patent: 5121391 (1992-06-01), Paneth et al.
Lehto Markku
Makkonen Matti
Pokka Tapani
Kuntz Curtis
Maung Nay Aung
Telecom Finland Oy
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