Routing control communication system between circuit switched network and internet

• US 6,456,617 B1
• Filed: 08/11/1998
• Issued: 09/24/2002
• Est. Priority Date: 08/12/1997
• Status: Expired due to Fees

• Current Assignee: KDDI Corporation
• Original Assignee: Kokusai Denshi Denwa Company Limited (KDDI Corporation)
• Inventors: Oda, Toshikane, Masaki, Hiroto, Yagi, Hikaru, Yamada, Hideaki
• Primary Examiner(s): Jung, Min
• Application Number:
  US09/132,262
• Time in Patent Office: 1,505 Days
• Field of Search: 370/352, 370/355, 370/356, 370/400, 370/401, 370/410, 709/218, 709/249
• US Class Current: 370/352
• CPC Class Codes: H04M 2207/12 intelligent networks
• CPC Class Codes: H04M 3/545 with loop avoiding arrangements
• CPC Class Codes: H04M 7/1225 Details of core network interconnection arrangements
• CPC Class Codes: H04M 7/125 Details of gateway equipment
• CPC Class Codes: H04M 7/128 Details of addressing, directories or routing tables
• CPC Class Codes: H04Q 3/0045 involving hybrid, i.e. a mixture of public and private, or multi-vendor systems

Abstract

A routing control communication system includes a circuit switched network provided with a service control information database having a telephone numbers table, an interconnection network provided with a network communication protocol and an information terminal, and a network interworking equipment provided with one terminal connected with the circuit switched network and the other terminal connected with the interconnection network. The information database is connected with the interconnection network, and the information terminal of the interconnection network is constituted so as to obtain a transferred terminal number corresponding to a called telephone number from the service control information database.

Claims

1. A routing control communication system comprising:

a circuit switched network including a plurality of telephone terminals and a service control information database provided with a telephone number table for storing telephone numbers of the respective telephone terminals and for corresponding between the telephone numbers of the telephone terminals and their call-transfer telephone numbers or addresses indicating other telephone numbers or addresses of the respective telephone terminals, to which incoming calls are to be transferred;

an internet protocol network including a plurality of data terminals and a gatekeeper provided with an address table for storing addresses of the respective data terminals;

a plurality of gateways connecting between said circuit switched network and said internet protocol network, said address table in said gatekeeper further storing addresses of the respective gateways and correspondence between telephone numbers of the telephone terminals and the addresses of the gateways to be used to connect the data terminals with the telephone terminals; and

an interworking equipment connecting between said service control information database in said circuit switched network and said gatekeeper in said internet protocol network so that said gatekeeper obtains a call-transfer telephone number or address corresponding to a telephone number called from the data terminal, using said telephone number table in said service control information database.

2. The system as claimed in claim 1, wherein the call-transfer telephone number or address obtained by said gatekeeper is a telephone number of a telephone terminal in said circuit switched network.

3. The system as claimed in claim 1, wherein the call-transfer telephone number or address obtained by said gatekeeper is an address of a data terminal in said internet protocol network.

4. The system as claimed in claim 1, wherein said interworking equipment performs mutual signal exchange for inquiry/response signals.

5. The system as claimed in claim 4, wherein said interworking equipment includes a memory means for storing information relating to the mutual signal exchange for inquiry/response signals.

6. The system as claimed in claim 1, wherein said circuit switched network includes an Intelligent Network.

7. A routing control communication system comprising:

a circuit switched network including a plurality of telephone terminals and a service control information database provided with a telephone number table for storing telephone numbers of the respective telephone terminals and for corresponding between the telephone numbers of the telephone terminals and their call-transfer telephone numbers or addresses indicating other telephone numbers or addresses of the respective telephone terminals, to which incoming calls are to be transferred;

an internet protocol network including a plurality of data terminals and a gatekeeper provided with an address table for storing addresses of the respective data terminals;

a plurality of gateways connecting between said circuit switched network and said internet protocol network, said address table in said gatekeeper further storing identification numbers of the respective gateways and correspondence between addresses of the data terminals and the identification numbers of the gateways to be used to connect the telephone terminals with the data terminals; and

an interworking equipment connecting between said service control information database in said circuit switched network and said gatekeeper in said internet protocol network so that said service control information database obtains at least one identification number of at least one gateway to be used to connect the telephone terminal with the data terminal, using said address table in said gatekeeper.

8. The system as claimed in claim 7, wherein said interworking equipment performs mutual signal exchange for inquiry/response signals.

9. The system as claimed in claim 8, wherein said interworking equipment includes a memory means for storing information relating to the mutual signal exchange for inquiry/response signals.

10. The system as claimed in claim 7, wherein said circuit switched network includes an Intelligent Network.