CN115242997A

CN115242997A - Method for realizing safe access of mobile phone of public network to company video conference system

Info

Publication number: CN115242997A
Application number: CN202210879999.6A
Authority: CN
Inventors: 张丹丹; 许东蛟; 梁畅; 赵景隆; 周月浩; 张毓琪; 常颖; 刘亚南
Original assignee: State Grid Corp of China SGCC; Information and Telecommunication Branch of State Grid Henan Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Information and Telecommunication Branch of State Grid Henan Electric Power Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-10-25

Abstract

The invention discloses a method for realizing the safe access of a public network mobile phone to a company video conference system, which effectively solves the problem that the safe access of the public network mobile phone to a national network company conference can not be realized in a remote home office scene. The private power network IMS core network is arranged between the public network mobile phone and the private power conference network to serve as a transfer station, namely, the mobile phone is firstly accessed into the private power network IMS core network through a 2M digital relay communicated between the private power network IMS core network and the public power network IMS core network through calling in a public network conference number, and then the establishment of a call channel from the public network mobile phone to a private power conference network MCU is finally completed through an I-SBC server and an SIP relay newly added between the private power network IMS core network and the private power conference network, so that the purpose of safely accessing the public network mobile phone to a national network company conference under a remote home office scene is realized.

Description

Method for realizing safe access of mobile phone of public network to company video conference system

Technical Field

The invention relates to the field of intelligent communication, in particular to a method for realizing the safe access of a public network mobile phone to a company video conference system.

Background

The national network company, namely a national grid company, two current commonly used consultation systems are a private power network IMS core network and a video conference system, wherein the private power network IMS core network is an IMS administrative exchange system, and the video conference system is a private power conference network, both the private power network IMS core network and the video conference system realize the full coverage of province-city-county and basic teams, so that the obvious effect on information interaction and communication is realized.

The present invention therefore provides a new solution to this problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a method for realizing the safe access of a public network mobile phone to a company video conference system, and effectively solves the problem that the safe access of the public network mobile phone to a national network company conference can not be realized in a remote home office scene.

The technical scheme for solving the problem is that the method for realizing the safe access of the mobile phone of the public network to the company video conference system comprises a public network IMS core network and a private power network IMS core network, and specifically comprises the following steps:

s1, a 2M digital private line is arranged between a server of an IMS core network of a connected public network and a server of an IMS core network of a power private network, and data configuration is carried out on logic layers of the two servers through an ISUP signaling protocol;

s2, the private power network IMS core network applies for a public network number section to the public communication network, the public network number section is used as a conference number of a private power conference network system, when a public network mobile phone calls the conference number by using a calling number, a relay server MGCF of the public communication network analyzes a called number, sends the analyzed called number to a voice relay of a 2M private digital line interconnected with the private power network IMS core network, and converts the called number into a voice signaling;

s3, a relay server MGCF of the electric power conference private network converts an ISUP signaling protocol and an SIP protocol, converts a TDM data packet converted by voice signaling into an SIP data packet, and sends the SIP data packet to an I-SBC server, wherein the electric power conference private network is an electric power conference private network system;

s4, configuring a number routing mapping table according to the I-SBC server, and routing the called number to an A-SBC server of the special power conference network aiming at the conference number of the special power conference network, wherein the A-SBC server is sent to an MCU of the special power conference network, and the MCU carries out legal authentication on the conference number and the password of the access conference of the calling number;

and S5, when the calling number is authenticated as a legal user, reserving bandwidth resources for the call by the MCU server, carrying out audio and video coding and decoding format negotiation, and finally completing establishment of an interconnection channel between the public network mobile phone and the MCU of the electric power conference private network.

Furthermore, the server of the IMS core network of the private power network comprises an A-SBC server and an I-SBC server, and the server of the private power conference network comprises an A-SBC server and an I-SBC server.

Further, the public network of the unicom in step S2 is a set of IMS core networks deployed in a public network system of the unicom.

Furthermore, in the step S4, the conference number and the password input by the user are compared with the password allocated to the conference in the MCU to check whether the conference number and the password are consistent, and if so, the conference number and the password are legal; disagreement is illegal.

The invention realizes the following beneficial effects:

the private power network IMS core network is arranged between the public network mobile phone and the private power conference network to serve as a transfer station, namely, the mobile phone is connected into the private power network IMS core network through a 2M digital relay which is used for communicating the private power network IMS core network and the private power network IMS core network through a public network conference number, then is connected into an A-SBC server and an MCU of the private power conference network through an I-SBC server and an SIP relay which are newly arranged between the private power network IMS core network and the private power conference network, and accordingly a call channel from the public network mobile phone to the private power conference network MCU is established, the private power conference network is safely connected into the public network mobile phone, the problem that the public network mobile phone cannot be safely connected into a national network company conference under a remote home office scene is solved, the private power network IMS core network and the private power conference network are intercommunicated, and safety isolation among different service systems in a national network company is guaranteed.

Drawings

Fig. 1 is a diagram of the effect of terminal interconnection among an IMS core network of a public network of connectivity, an IMS core network of a private power network, and a private power conference network of the present invention;

fig. 2 is a schematic diagram of the public network mobile phone secure access company video conference system of the present invention.

Detailed Description

The foregoing and other technical and functional aspects of the present invention will be apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying figures 1-2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

A method for realizing the safe access of a public network mobile phone to a company video conference system comprises a public network IMS core network and a power private network IMS core network, and specifically comprises the following steps:

s1, a 2M digital private line is arranged between a server of an IMS core network of a communicated public network and a server of an IMS core network of a private power network, and data configuration is carried out on logic layers of the two servers through an ISUP signaling protocol;

s4, the private electric conference network configures a number routing mapping table according to the I-SBC server, a called number is a conference number of the private electric conference network, the called number is routed to an A-SBC server of the private electric conference network, the A-SBC server is sent to an MCU of the private electric conference network, and the MCU performs legal authentication on a conference number and a password of a calling number access conference;

In the step S4, the conference number and the password input by the user are compared with the password distributed to the conference in the MCU, whether the conference number and the password are consistent or not is checked, and if the conference number and the password are consistent, the conference number and the password are legal; disagreement is illegal.

The IMS core network is a set of IMS core network deployed in a public network system of a communication company, and is two parallel and independent networks with an IMS core network of a private power network, and mutual access between public network users and private network users in the two networks can be realized only through a special physical private line channel and a special intercommunication protocol.

The server of the private power network IMS core network comprises an A-SBC server and an I-SBC server, and the server of the private power conference network comprises the A-SBC server and the I-SBC server, namely the A-SBC server and the I-SBC server are both arranged in the server of the private power network IMS core network private power conference network.

When the invention is used specifically, the registered conference number can be made as follows: 932151047, and the conference number has been registered on the MCU server and the a-SBC server of the private network for electric conference, the network management system of the private network for electric conference sets the conference number and password of the conference at the same time, the public network mobile phone can access the conference after being authenticated, and the public network number allocated by the unicom company corresponding to the conference number is: 0371-67901047, the SIP number of the access conference terminal of the private network of the power conference: 932141048, the registered IMS in the private power network IMS core network has SIP number: 932125376, public network mobile phone number: 18039212565, pre-configuring number conversion mapping table and number routing analysis table on MGCF and I-SBC server of IMS core network of private power network;

1. when a public network mobile phone calls a public network conference number 0371-67901047, and a user name and a password of the conference are input, the conference is accessed to an operator nearby through a public network base station, wherein the operator is a Unicom company, and the public network base station is a Unicom base station;

2. an operator analyzes a called number 0371-67901047 and finally sends the called number to an MGCF server of an IMS core network of the Unicom public network;

3. a relay server MGCF of an IMS core network of the public network of the UNICOM inquires a local number analysis and relay mapping table by analyzing a called number 0371-67901047, packages the voice call signaling flow according to an ISUP protocol format and sends the voice call signaling flow to a 2M relay of a private network of the power IMS;

4. a relay server MGCF of an IMS core network of the private power network decapsulates a received ISUP signaling call flow, extracts a called number 67901047, inquires a local number mapping table, converts the called number into a main number and a called number, normalizes the calling format into 018039212565, converts the called number into 932151047, inquires a local relay mapping table, encapsulates the call signaling flow into an SIP data packet and sends the SIP data packet to an I-SBC server of the IMS core network of the private power network;

5. the I-SBC server of the IMS core network of the private power network decapsulates the received SIP data packet, extracts the called number as 932151047, queries a local number routing mapping table, encapsulates the call signaling stream into the SIP data packet again, and sends the SIP data packet to the A-SBC server of the private power conference network;

6. after receiving the SIP data packet, the A-SBC server of the private network for the power conference carries out calling and called analysis, the called number is 932151047, and the calling stream is sent to the MCU of the private network for the power conference for processing by inquiring the registration IP and the next hop information configured on the A-SBC server of the private network for the power conference;

7. after receiving the SIP call stream, the MCU of the private network for the electric conference unpacks the SIP call stream, extracts a called number 932151047 and a calling number 018039212565, queries a local database, knows that the called number is a registered conference number, extracts a conference number and a password carried in the SIP call stream, performs validity check, and if the check is consistent, the MCU packages resource negotiation information such as bandwidth, supported audio and video coding and decoding formats and the like into an SIP response 183 message and returns the SIP response 183 message to an A-SBC server of the private network for the electric conference, wherein the 183 message refers to a standard response message of an SIP protocol;

8. the A-SBC server of the private network of the power conference receives the SIP response signaling flow, and sends the SIP response signaling flow to a relay server MGCF of an IMS core network of the private network of the power conference according to the routing information recorded by the head of the SIP signaling, the relay server MGCF converts the SIP signaling flow into an ISUP signaling format, sends the ISUP signaling format to the IMS core network of the public network, and finally reaches the mobile phone terminal, so that the signaling channel between the mobile phone of the public network and the MCU of the private network of the power conference is established, the media format negotiation is successful, and the call is successfully established.

9. When a user accesses a conference system through a private network of the power conference, a conference number 932151047 is called through a conference terminal 932141048, a conference is requested to be added by sending an INVITE message in an SIP protocol, wherein the conference terminal can be a soft terminal and a hard terminal, the hard terminal is a traditional video terminal, the soft terminal is a soft terminal on a PC or a PAD, and the access can be realized by configuring a headset and a camera on a small program, which is similar to an app of a Tencent conference on a mobile phone;

10. after receiving the request message, the A-SBC server of the private network of the power conference sends the SIP message to the MCU of the private network of the power conference for processing by inquiring a local database and analyzing a route;

11. the MCU of the private network for the power conference performs user name and password validity authentication on the calling side 932141048, and after the authentication is passed, the MCU sends a media negotiation response message of an SIP protocol 183 and returns the response message to the A-SBC server of the private network for the power conference, and finally the conference terminal 932141048 is reached, so that the negotiation of a signaling channel, a media coding and decoding format and the like between the conference terminal and the MCU of the private network for the power conference is completed, and the call is successfully established.

12. A user of an IMS core network of the private power network accesses a private power network conference system, the user 932125376 of the IMS core network of the private power network calls a private power network conference number 932151047, the calling stream is sent to an A-SBC server access server of the private power network IMS, and the called number 932151047 is analyzed and sent to an I-SBC server of the IMS core network of the private power network;

13. an I-SBC server of an IMS core network of the private power network analyzes a called number in the SIP call signaling stream, queries a local number routing mapping table and sends the signaling stream to an A-SBC server of the private power conference network;

14. the power conference private network A-SBC server analyzes the called number and routes the called number to the conference private network MCU;

15. the private conference network MCU authenticates the validity of the user name and the password of the calling number, and after the authentication is passed, the private conference network MCU sends an SIP protocol 183 message, returns the message to the private electric conference network A-SBC server and finally reaches the calling terminal 932125376, so that the negotiation of a signaling channel, a media coding and decoding format and the like between the private electric IMS network user and the private conference network MCU is completed, and the call is successfully established.

16. And the public network mobile phone, the power IMS private network user and the conference terminal are all successfully accessed into the company conference system, the mobile phone is accessed in an audio mode, and the power IMS private network user and the conference terminal are accessed in an audio and video self-adaptive mode. When a user at a mobile phone end speaks, the media data packet finally reaches the MCU of the private power conference network through the relay server MGCF of the public communication network, the MGCF of the private power network IMS core network, the I-SBC server of the private power network IMS core network and the A-SBC server of the private power conference network, the MCU of the private power conference network is responsible for decoding, recoding is carried out by utilizing an audio/video conversion matrix according to an audio/video format negotiated with each access terminal, and the recoded audio/video format is forwarded to the corresponding private power network IMS core network user, the video terminal and the like.

17. When a conference terminal speaks, media data streams are accessed through an A-SBC server of the private power conference network and forwarded to a private conference network MCU for decoding, the private conference network MCU recodes the audio and video format supported by the mobile phone end, and finally reach a public network mobile phone through the A-SBC server of the private power conference network, an I-SBC server of an IMS (IP multimedia subsystem) core network of the private power network, the MGCF and a middle-level server MGCF of a public network, so that the public network mobile phone is accessed into a conference system of the private power conference network in real time.

The invention realizes the following beneficial effects:

the private power network IMS core network is arranged between the public network mobile phone and the private power conference network to serve as a transfer station, namely, the mobile phone is firstly connected into the private power network IMS core network through a 2M digital relay which is communicated between the private power network IMS core network and the private power network IMS core network through a public network conference calling number, then is connected into an A-SBC server and an MCU of the private power conference network through an I-SBC server and an SIP relay which are newly added between the private power network IMS core network and the private power conference network, and therefore the call channel between the public network mobile phone and the private power conference network MCU is established, the private power conference network is safely connected into the public power network, the problem that the public network mobile phone cannot be safely connected into a national network company conference under a remote home office scene is solved, the private power network IMS core network and the private power conference network are intercommunicated, and the safety isolation among different service systems in a national network company is guaranteed.

Claims

1. A method for realizing the safe access of a public network mobile phone to a company video conference system comprises a public network IMS core network and a power private network IMS core network, and is characterized by comprising the following steps:

s4, configuring a number routing mapping table according to the I-SBC server, and routing the conference number, which is the called number, of the private power conference network to an A-SBC server of the private power conference network, wherein the A-SBC server is sent to an MCU of the private power conference network, and the MCU legally authenticates the conference number and the password of the calling number accessed to the conference;

2. The method of claim 1, wherein the servers of the IMS core network of the private power network include an a-SBC server and an I-SBC server, and the servers of the private power conference network include an a-SBC server and an I-SBC server.

3. The method as claimed in claim 1, wherein the public network in step S2 is an IMS core network deployed by the public network system of the unicom.

4. The method for realizing the secure access of the mobile phone in the public network to the company video conference system according to claim 1, wherein in the step S4, the conference number and the password input by the user are compared with the password allocated to the conference in the MCU to check whether the conference number and the password are consistent with each other, and if the conference number and the password are consistent with each other, the conference is legal; disagreement is illegal.