Integrated information communication system

Abstract

A communication system, for functioning without the use of dedicated lines or the Internet so as to ensure communication speed, communication quality, and communication trouble countermeasures, including a communication network and domain name server. The domain name server includes a domain name tree with a country number of a telephone number as a level 2 domain name of the domain name tree, and the domain name server receives, from a terminal, a telephone number of a destination terminal. Furthermore, based on the telephone number of the destination terminal, the domain name server (i) seeks out, in the domain name tree, an Integrated Information Communication System (ICS) user address of the destination terminal, and (ii) sends the ICS user address to the terminal, such that the communication system receives, from the terminal, the ICS user address as a destination address, and sends the ICS user frame to the destination terminal.

1 . A communication system, wherein:
 said communication system includes a communication network,   said communication network includes a domain name server,   IP terminals T1 and T2 are connected to said communication network;   a telephone number of said IP terminal T2 is sent from said IP terminal T1;   said domain name server receives an ICS frame including said telephone number which is based on the international public telecommunication numbering plan for a public telephone system, for example, a PSTN (Public Switched Telephone Network), and said domain name server retrieves, based on all codes of said telephone number, an ICS user address corresponding to all of the codes of said telephone number, and replies said ICS user address; and   a communication between said IP terminals T1 and T2 is carried out by using said ICS user address via said communication network.   
     
     
         2 . The communication system according to  claim 1 , wherein said communication network is connected to the PSTN (Public Switched Telephone Network) or a mobile communication network, said IP terminal T1 communicates with a terminal T3 connected to said PSTN or said mobile communication network. 
     
     
         3 . The communication system according to  claim 1 , wherein said communication network is connected to another IP communication network or a Internet, and said IP terminal T1 communicates with a terminal T4 connected to said another IP communication network or said Internet. 
     
     
         4 . A communication system, wherein:
 said communication system includes a communication network, said communication network includes a domain name server, and IP terminals T1 and T2 are connected to said communication network;   a telephone number of said IP terminal T2 is sent from said IP terminal T1;   said domain name server receives an ICS frame including said telephone number which is used for a public telephone system, for example, a PSTN (Public Switched Telephone Network); and   said domain name server retrieves, based on all codes of said telephone number, an ICS user address corresponding to all of the codes of said telephone number, and replies said ICS user address; and   a communication between said IP terminals T1 and T2 is carried out by using said ICS user address via said communication network.   
     
     
         5 . The communication system according to  claim 4 , wherein said communication network is connected to the PSTN (Public Switched Telephone Network) or a mobile communication network, and said IP terminal T1 communicates with a terminal T3 connected to said PSTN or said mobile communication network. 
     
     
         6 . The communication system according to  claim 4 , wherein said communication network is connected to another IP communication network or a Internet, and said IP terminal T1 communicates with a terminal T4 connected to said another IP communication network or said Internet. 
     
     
         7 . A communication system with employment of an ICS communication network, wherein:
 said ICS communication network includes a domain name server, and IP terminals T1 and T2 are connected to said ICS communication network;   a telephone number of said IP terminal T2 is sent from said IP terminal T1;   said server receives an ICS frame including said telephone number which is used for a public telephone system, for example, a PSTN (Public Switched Telephone Network);   said domain name server retrieves, based on all codes of said telephone number, an ICS user address corresponding to all of the codes of said telephone number, and replies said ICS user address; and   a communication between said IP terminals T1 and T2 is carried out by using said ICS user address via said ICS communication network.   
     
     
         8 . The communication system with employment of the ICS communication network according to  claim 7 , wherein said ICS communication network is connected to the PSTN (Public Switched Telephone Network) or a mobile communication network, and said IP terminal T1 communicates with a terminal T3 connected to said PSTN or said mobile communication network. 
     
     
         9 . The communication system with employment of the ICS communication network according to  claim 7 , wherein said ICS communication network is connected to an IP communication network or a Internet, and said IP terminal T1 communicates with a terminal T4 connected to said IP communication network or said Internet. 
     
     
         10 . A communication system with employment of an ICS communication network, wherein:
 a telephone number of a destination IP terminal is sent from an origin IP terminal;   a domain name server receives said telephone number which is used for a public telephone system, for example, a PSTN (Public Switched Telephone Network), retrieves an ICS user address based on all codes of said telephone number, and replies said ICS user address; and   a communication between said origin IP terminal and said destination IP terminal is carried out by using said ICS user address via said ICS communication network.   
     
     
         11 . The communication system with employment of the ICS communication network according to  claim 10 , wherein said ICS communication network is connected to the PSTN (Public Switched Telephone Network) or a mobile communication network, and said IP terminal T1 communicates with a terminal T3 connected to said PSTN or said mobile communication network. 
     
     
         12 . The communication system with employment of the ICS communication network according to  claim 10 , wherein said ICS communication network is connected to another IP communication network or a Internet, and said IP terminal T1 communicates with a terminal T4 connected to said another IP communication network or said Internet.