Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1998-12-23
2000-08-01
Chan, Wing F.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379 9323, 379215, H04M 1100
Patent
active
060977957
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
When an analog telephone subscriber is in an Internet session via a modem connection, he cannot be reached by telephone since he does not have a second message channel. There is no possibility in traditional technology of informing the subscriber about an incoming call since no information to the subscriber can be transmitted into the existing modem connection.
As a result of this situation, connection attempts of third parties to said Internet subscriber are lost. The Internet subscriber continues to receive no information whatsoever about incoming call attempts of third parties during the time of his Internet session.
SUMMARY OF THE INVENTION
The invention is based on the problem of specifying a method with which said problems are overcome.
The invention enables a communication between the local telephone exchange of the Internet subscriber and the Internet subscriber over the Internet session. With the assistance of this communication, information (such as, for example, about incoming calls and telephone numbers of the callers) can be transmitted to a subscriber via his message channel over which he is simultaneously in an Internet session.
The invention is particularly advantageous for an analog subscriber since this subscriber has only a single message channel available, i.e. no second message channel and no D-channel, either.
According to one embodiment of the invention, it is possible for a subscriber to transmit the decision of whether he wishes to accept an incoming call to the local exchange so that it delivers this call as warranted.
BRIEF DESCRIPTION OF THE DRAWING
The features of the present invention which are believed to be novel, are set forth with particularity in the appended claims. The invention, together with further objects and advantages, may best be understood by reference to the following description taken in conjunction with the accompanying drawing, and in which:
The single FIGURE depicts the method of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The FIGURE shows the fundamental technique of the invention. What is referred to as an Internet interworking unit IWU is integrated in the local exchange, this realizing the point of presence POP into the Internet and concluding the modem protocols of the analog subscribers (modem pool is integrated in the IWU). The IWU is usually connected to the switching technology (such as a private branch exchange) via an ISDN primary multiplex connection (ISDN primary rate interface, ISDN-PRI). Messages between IWU and switching technology are exchanged via the D-channel.
In order to enable the communication, the IWU--after the subscriber logs on--sends the dynamic IP address to the switching technology, where it is stored for further action.
When a message is to be sent from the `switching technology` to an Internet subscriber (for example, for information about incoming calls), then this information is forwarded from the `switching technology` to the Internet IWU (D-channel message). The message contains the dynamic IP address of the affected subscriber. In the IWU, the message is converted into an IP-packet and sent to the subscriber (TCP/IP/PPP or UDP/IP/PPP). In reverse direction, the subscriber sends an IP-packet with a specific application number to the IWU. The specific application converts the IP-packet into a message that, for example, is forwarded via the D-channel to the switching technology.
When the IWU is not in the local exchange of the Internet subscriber but in some other switching center, then the messages between the switching centers are exchanged via the protocols SCCP and/or TCAP. The path selection is made on the basis of the E.164 number of the subscriber and the E.164 number of the IWU.
Subscriber performance features such as, for example, `call waiting at Internet subscribers` can be realized with this communication possibility.
Given an incoming call, the subscriber connected to the Internet point of presence can be provided with information about this call. The su
REFERENCES:
patent: 4995074 (1991-02-01), Goldman et al.
patent: 5805587 (1998-09-01), Norris et al.
patent: 5809128 (1998-09-01), McMullin
patent: 5982774 (1999-11-01), Foladare et al.
Krob Silvia
Kurzawa Hendrik
Lange Thomas
Lindenthal Andreas
Schmidt Christian
Chan Wing F.
Siemens Aktiengesellschaft
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