Gateway apparatus

• US 6,771,637 B1
• Filed: 11/12/1999
• Issued: 08/03/2004
• Est. Priority Date: 02/16/1999
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Suzuki, Hiroko, Ohtsu, Kazuyuki
• Primary Examiner(s): Nguyen, Steven H. D
• Application Number:
  US09/438,653
• Time in Patent Office: 1,726 Days
• Field of Search: 370/230, 370/235, 370/229, 370/352, 370/353, 370/354, 370/355, 370/356, 370/401, 370/465, 370/410, 370/904, 370/522, 370/402, 370/351, 370/259-262, 379/900, 379/88.17, 709/223-230
• US Class Current: 370/352
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 65/103 in the network
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1043 Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 7/125 Details of gateway equipment
• CPC Class Codes: Y10S 379/90 Internet, e.g. Internet phone, webphone, internet-based telephony

Abstract

This invention is a gateway apparatus arranged between a circuit switched network and the Internet. The gateway apparatus comprises a prior connection section setting a channel on the Internet according to the call setting request received from the circuit switched network before the call setting request is received from the circuit switched network, and a call setting section setting a connection corresponding to the call setting request on the Internet by using the channel set by the prior connection section when the call setting request is received from the circuit switched network.

Claims

1. A gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol and a connection procedure of a sound channel in order to set a connection on the Internet comprising:

a prior connection section executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

a call setting section setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set by the prior connection section when the call setting request is received from the circuit switched network;

a traffic monitor section monitoring traffic volume in the gateway apparatus; and

a channel count change section changing the number of control channels based on the Q.931 protocol connected by the prior connection section according to a monitored result of the traffic monitor section.

2. A gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol and a connection procedure of a sound channel in order to set a connection on the Internet comprising:

a prior connection section executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

a call setting section setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set by the prior connection section when the call setting request is received from the circuit switched network;

a traffic monitor section monitoring traffic volume in the gateway apparatus; and

a channel count change section respectively changing the number of control channels based on the Q.931 protocol and the number of control channels based on the H.245 protocol connected by the prior connection section according to a monitored result of the traffic monitor section, wherein

the connection procedure of the control channel based on the H.245 protocol is executed by the prior connection section before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the call setting section sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol and the control channel based on the H.245 protocol set by the prior connection section.

3. A gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol and a connection procedure of a sound channel in order to set a connection on the Internet comprising:

a prior connection section executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

a call setting section setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set by the prior connection section when the call setting request is received from the circuit switched network;

a traffic monitor section monitoring traffic volume in the gateway apparatus; and

a channel count change section respectively changing the number of control channels based on the Q.931 protocol, the number of control channels based on the H.245 protocol and the number of sound channels connected by the prior connection section according to a monitored result of the traffic monitor section, wherein

the connection procedure of the control channel based on the H.245 protocol is executed by the prior connection section before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the call setting section sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol and the control channel based on the H.245 protocol set by the prior connection section, and wherein

the prior connection section executes a connection procedure of the sound channel before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the call setting section sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol, the control channel based on the H.245 protocol and the sound channel set by the prior connection section.

4. A gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol and a connection procedure of a sound channel in order to set a connection on the Internet comprising:

a prior connection section executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

a call setting section setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set by the prior connection section when the call setting request is received from the circuit switched network; and

a channel count change section changing the number of control channels based on the Q.931 protocol connected by the prior connection section according to an input channel count change request.

5. A gateway apparatus according to claim 4, further comprising an input device for inputting the channel count change request.

6. A gateway apparatus according to claim 4, wherein the channel count change request is input from the circuit switched network.

7. A gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol and a connection procedure of a sound channel in order to set a connection on the Internet comprising:

a prior connection section executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

a call setting section setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set by the prior connection section when the call setting request is received from the circuit switched network; and

a channel count change section respectively changing the number of control channels based on the Q.931 protocol and the number of control channels based on the H.245 protocol connected by the prior connection section according to an input channel count change request, wherein

the connection procedure of the control channel based on the H.245 protocol is executed by the prior connection section before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the call setting section sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol and the control channel based on the H.245 protocol set by the prior connection section.

8. A gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol and a connection procedure of a sound channel in order to set a connection on the Internet comprising:

a prior connection section executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

a call setting section setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set by the prior connection section when the call setting request is received from the circuit switched network; and

a channel count change section respectively changing the number of control channels based on the Q.931 protocol, the number of control channels based on the H.245 protocol, and the number of sound channels connected by the prior connection section according to an input channel count change request, wherein

the connection procedure of the control channel based on the H.245 protocol is executed by the prior connection section before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the call setting section sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol and the control channel based on the H.245 protocol set by the prior connection section, and wherein

the prior connection section executes a connection procedure of the sound channel before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the call setting section sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol, the control channel based on the H.245 protocol and the sound channel set by the prior connection section.

9. A call setting method of a gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol, and a connection procedure of a sound channel in order to set a connection on the Internet, comprising the steps of:

executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set in the executing step when the call setting request is received from the circuit switched network;

monitoring traffic volume in the gateway apparatus; and

changing the number of control channels based on the Q.931 protocol connected by the executing step according to a monitored result of the monitoring step.

10. A call setting method of a gateway apparatus according to claim 9, wherein the executing step executes the connection procedure of the control channel based on the H.245 protocol before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the setting step sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol and the control channel based on the H.245 protocol set in the executing step.

11. A call setting method of a gateway apparatus according to claim 10, wherein the executing step executes a connection procedure of the sound channel before the call setting request is received from the circuit switched network, and when the call setting request is received from the circuit switched network, the setting step sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol, the control channel based on the H.245 protocol and the sound channel set by the executing step.

12. A call setting method of a gateway apparatus, arranged between a circuit switched network and the Internet, executing a connection procedure of a control channel based on a Q.931 protocol, a connection procedure of a control channel based on an H.245 protocol and a connection procedure of a sound channel in order to set a connection on the Internet comprising the steps of:

executing the connection procedure of the control channel based on the Q.931 protocol before a call setting request is received from the circuit switched network;

setting the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol set by the executing step when the call setting request is received from the circuit switched network; and

changing the number of control channels based on the Q.931 protocol connected by the executing step according to an input channel count change request.

13. A call setting method of claim 12, wherein

the changing step includes changing the number of control channels based on the Q.931 protocol and the number of control channels based on the H.245 protocol connected by the executing step according to an input channel count change request, and wherein

the connection procedure of the control channel based on the H.245 protocol is executed by the executing step before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the setting step sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol and the control channel based on the H.245 protocol set by the executing step.

14. A call setting method of claim 12, wherein

the changing step includes changing the number of control channels based on the Q.931 protocol, the number of control channels based on the H.245 protocol, and the number of sound channels connected by the executing step according to an input channel count change request, and wherein

the connection procedure of the control channel based on the H.245 protocol is executed by the executing step before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the setting step sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol and the control channel based on the H.245 protocol set by the executing step, and wherein

the executing step executes a connection procedure of the sound channel before the call setting request is received from the circuit switched network, and

when the call setting request is received from the circuit switched network, the setting step sets the connection corresponding to the call setting request on the Internet by using the control channel based on the Q.931 protocol, the control channel based on the H.245 protocol and the sound channel set by the executing step.