Switching system

A switching system to accommodate a plurality of user terminals and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• communication service providing means for registering user terminal registration information of those user terminals which can receive a communication service of a desired form into said call control memories and linking said call control memories with each other so that a communication service of the desired form can be provided is formed;
• and
• link changing control means for changing the mutually linked condition of the pertinent ones of said call control memories in response to changing command information to a communication service of a different form,
• wherein said link changing control means includes registration information condition discrimination means for verifying said call control memories and the user terminal registration information based on the changing command information to discriminate whether or not changing of the mutually linked condition of the pertinent ones of said call control memories is possible.

A switching system to accommodate a plurality of user terminals and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• communication service providing means for registering user terminal registration information of those user terminals which can receive a communication service of a desired form into said call control memories and linking said call control memories with each other so that a communication service of the desired form can be provided is formed;
• and
• link changing control means for changing the mutually linked condition of the pertinent ones of said call control memories in response to changing command information to a communication service of a different form,
• wherein said link changing control means includes service condition discrimination means for discriminating whether or not changing of the mutually linked condition of the pertinent ones of said call control memories is possible in a condition wherein a communication service in operation is continued or in another condition wherein the communication service in operation is temporarily stopped.

A switching system to accommodate a plurality of user terminals and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• communication service providing means for registering user terminal registration information of those user terminals which can receive a communication service of a desired form into said call control memories and linking said call control memories with each other so that a communication service of the desired form can be provided is formed;
• and
• link changing control means, provided for the individual terminal groups, for changing the mutually linked condition of the pertinent ones of said call control memories in response to changing command information to a communication service of a different form,
• wherein said plurality of user terminals are divided into a plurality of user terminal groups, said call control memories and said communication service providing means provide for the individual user terminal groups, and wherein said link changing control means is constructed so as to change, when simultaneous changing command information for changing a communication service in operation in each of said user terminal groups simultaneously to a communication service of a different form is inputted as the changing command information, the mutually linked condition of the pertinent ones of said call control memories of each of said user terminal groups simultaneously for each of said user terminal groups.

A switching system to accommodate a plurality of user terminals and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• protocol control memories individually provided for said user terminals, each for storing information to control communication protocol for the user terminal;
• user terminal registration means for registering user terminal registration information of those of said user terminals which can receive a communication service of a desired form into said call control memories is provided;
• and
• communication service providing means for linking, when a trigger signal is inputted through any of said user terminals, said call control memories and said protocol control memories with each other so that a communication service of a desired form can be provided is formed.

A switching system to accommodate a plurality of user terminals via private lines or public lines and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• protocol control memories individually provided for said user terminals, each for storing information to control communication protocol of the user terminal;
• private line communication service providing means for registering user terminal registration information of those of said user terminals which can receive a communication service of a desired form regarding said private lines into said call control memories and linking said call control memories with each other so that a communication service of a desired form regarding said private lines can be provided is provided;
• user terminal registration means for registering user terminal registration information of those of said user terminals which can receive a communication service of a desired form regarding said public lines into said call control memories;
• and
• public line communication service providing means for linking, when a trigger signal is inputted through any of said user terminals, said call control memories and said protocol control memories with each other so that a communication service of a desire form regarding said public lines can be provided are provided.

A switching system to accommodate a plurality of user terminals and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• protocol control memories individually provided for said user terminals, each for storing information to control communication protocol for the user terminal;
• user terminal registration means for registering user terminal registration information of those of said user terminals which can receive a communication service of a desired form into said call control memories is provided;
• and
• communication service providing means for linking said call control memories and said protocol control memories with each other so that a communication service of a desired form can be provided is formed.

A switching system to accommodate a plurality of user terminals via private lines or public lines and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• protocol control memories individually provided for said user terminals, each for storing information to control communication protocol for the user terminal;
• private line communication service providing means for registering user terminal registration information of those of said user terminals which can receive a communication service of a desired form regarding said private lines into said call control memories and linking said call control memories with each other so that a communication service of a desired form regarding said private lines can be provided is provided;
• user terminal registration means for registering user terminal registration information of those of said user terminals which can receive a communication service of a desired form regarding said public lines into said call control memories;
• public line communication service providing means for linking said call control memories and said protocol control memories with each other so that a communication service of a desired form regarding said public lines can be provided;
• and
• user terminal inputting type line changing control means for changing, when a trigger signal including line changing message information regarding a communication service of an arbitrary form is inputted through any of said user terminals, the mutually linked condition of those of said call control memories and said protocol control memories in which the pertinent user terminal registration information is registered in response to an aimed line kind of changing.

A switching system to accommodate a plurality of user terminals and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• communication service providing means for registering user terminal registration information of those user terminals which can receive a communication service of a desired form into said call control memories and linking said call control memories with each other so that a communication service of the desired form can be provided is formed;
• and
• link changing control means, provided for the individual terminal groups, for changing the mutually linked condition of the pertinent ones of said call control memories in response to changing command information to a communication service of a different form,
• wherein said plurality of user terminals are divided into a plurality of user terminal groups, said call control memories and said communication service providing means provide for the individual user terminal groups, and wherein said link changing control means includes registration information condition discrimination means for verifying said call control memories and the user terminal registration information based on the changing command information to discriminate whether or not changing of the mutually linked condition of the pertinent ones of said call control memories is possible.

A switching system to accommodate a plurality of user terminals and control a condition of a communication service to be provided to said user terminals, comprising:

• call control memories individually provided for paths between said user terminals, each for storing call control information to control a call for the path;
• communication service providing means for registering user terminal registration information of those user terminals which can receive a communication service of a desired form into said call control memories and linking said call control memories with each other so that a communication service of the desired form can be provided is formed;
• and
• link changing control means, provided for the individual terminal groups, for changing the mutually linked condition of the pertinent ones of said call control memories in response to changing command information to a communication service of a different form,
• wherein said plurality of user terminals are divided into a plurality of user terminal groups, said call control memories and said communication service providing means provide for the individual user terminal groups, and wherein said link changing control means includes service condition discrimination means for discriminating whether or not changing of the mutually linked condition of the pertinent ones of said call control memories is possible in a condition wherein a communication service in operation is continued or in another condition wherein the communication service in operation is temporarily stopped.