Communication System Using Heterogeneous Networks

• US 20150373059A1
• Filed: 02/05/2014
• Published: 12/24/2015
• Est. Priority Date: 02/07/2013
• Status: Active Grant

• Current Assignee: OpenVacs Co., Ltd., Young Min Jeoung
• Original Assignee: OpenVacs Co., Ltd.
• Inventors: JEOUNG, Young Min
• Granted Patent: US 9,838,438 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 65/1059 End-user terminal functionalities specially adapted for real-time communication
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1095 Inter-network session transfer or sharing
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04M 7/1205 where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

Disclosed is a communication system and, more particularly, a communication system using heterogeneous networks to support voice calls by combining private mobile networks, Mobile Network Operators (MNOs), and Public Switched Telephone Networks (PSTNs) even when an application for voice talk has not been installed on the mobile terminal.

Claims

1. A communication system using heterogeneous networks characterized by:

implementing a mobile Voice over Internet Protocol (mVoIP) environment with an IP network including one of a Mobile Network Operator (MNO) and a private mobile network, and a Public Switched Telephone Network (PSTN), and making network access with a sender terminal and a receiver terminal, on which an application for supporting voice calls is installed based on the mVoIP environment,

obtaining network state information about at least one of a network accessing the sender terminal, a condition of the network, and a voice call option through the application, if the application is installed on the sender terminal and the sender terminal sends a call access request to the receiver terminal, and

setting up one of a lowest cost route and a best quality route between the sender terminal and the receiver terminal as a communication route, based on the network state information,

wherein the communication route is formed in selective combination of the IP network and the PSTN network.

2. The communication system of claim 1, wherein the voice call option comprises one of lowest call cost, free calls, and best call quality options.

3. The communication system of claim 1, comprising:

a first media gateway for performing communication with the sender terminal through one of the IP network and the PSTN;

a second media gateway for performing communication with the receiver terminal through one of the IP network and the PSTN;

a VoIP server for handling one of user registration and login access to one of the sender terminal and the receiver terminal, if the sender terminal requests call access to the receiver terminal;

a message processing server for obtaining the network state information from the sender terminal; and

a route and call processing server for forming a communication route between the sender terminal and the receiver terminal by using the network state information obtained from the message processing server.

4. The communication system of claim 3, wherein the first media gateway comprises

a VOIP gateway accessed to the sender terminal over the IP network;

and

a PSTN gateway accessed to the sender terminal over the PSTN.

5. The communication system of claim 3, wherein the second media gateway comprises

a VOIP gateway accessed to the receiver terminal over the IP network;

and

a PSTN gateway accessed to the receiver terminal over the PSTN.

6. The communication system of claim 4, wherein the VOIP gateway performs voice communication with the sender terminal or the receiver terminal according to at least one protocol of H.323, Session Initiation Protocol(SIP), Media Gateway Control Protocol (MGCP), Inter-Asterisk eXchange (IAX), Web Real-Time Communication (WebRTC), Real-Time Transport Protocol (RTP), Secure Real-Time Transport Protocol (SRTP) and RTP Control Protocol (RTCP), and

wherein the PSTN gateway performs voice communication with the sender terminal or the receiver terminal according to at least one protocol of No. 7 (SS7), ISDN BRI, ISDN PRI, E1/T1 MFC-R2, E1/T1 CAS, T1 Robbed-Bit, Analog Loop Start, Analog Ground Start, Analog Kool Start, GSM, CDMA, WCDMA, LTE, and LTE Advanced.

7. The communication system of claim 1, wherein the receiver terminal comprises one of a feature phone, a smart phone, a wired phone, and an Internet phone.

11. The communication system of claim 5, wherein the VOIP gateway performs voice communication with the sender terminal or the receiver terminal according to at least one protocol of H.323, Session Initiation Protocol(SIP), Media Gateway Control Protocol (MGCP), Inter-Asterisk eXchange (IAX), Web Real-Time Communication (WebRTC), Real-Time Transport Protocol (RTP), Secure Real-Time Transport Protocol (SRTP) and RTP Control Protocol (RTCP), and

wherein the PSTN gateway performs voice communication with the sender terminal or the receiver terminal according to at least one protocol of No. 7 (SS7), ISDN BRI, ISDN PRI, E1/T1 MFC-R2, E1/T1 CAS, T1 Robbed-Bit, Analog Loop Start, Analog Ground Start, Analog Kool Start, GSM, CDMA, WCDMA, LTE, and LTE Advanced.

8. A communication system using heterogeneous networks comprising:

a first media gateway that gets network access to a sender terminal over one of an IP network and a PSTN;

a second media gateway that gets network access to a receiver terminal over one of an IP network and a PSTN;

a message processing server that obtains network state information through an application installed in one of the sender terminal and the receiver terminal, the network state information including information about a network accessed by one of the sender terminal and the receiver terminal, a condition of the network, and a voice call option; and

a route and call processing server that forms a communication route for one of communication cost and call quality by referring to the network state information,

wherein the communication route is formed in selective combination of the IP network and the PSTN.

9. The communication system of claim 8, wherein the network state information includes at least a piece of information about a communication network to which the sender terminal or the receiver terminal belongs, quality of the communication network, and a voice call option.

10. The communication system of claim 9, wherein the voice call option comprises one of the lowest call cost, free calls, and best call quality options.