CN109640278B - Unconditional call transfer-based VoIP answering method suitable for multiple operators - Google Patents
Unconditional call transfer-based VoIP answering method suitable for multiple operators Download PDFInfo
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- CN109640278B CN109640278B CN201811510604.5A CN201811510604A CN109640278B CN 109640278 B CN109640278 B CN 109640278B CN 201811510604 A CN201811510604 A CN 201811510604A CN 109640278 B CN109640278 B CN 109640278B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1096—Supplementary features, e.g. call forwarding or call holding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
- H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
- H04M7/126—Interworking of session control protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
- H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
- H04M7/1285—Details of finding and selecting a gateway for a particular call
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
Abstract
The invention discloses a VoIP answering method based on unconditional call forwarding, which is suitable for multiple operators.A set of call forwarding setting gateway is arranged in a mobile core network of each mobile communication operator and is used for setting the unconditional call forwarding of a service user, and a set of central voice processing platform is further intensively arranged and is used for processing the voice call coming from the unconditional call forwarding and converting the voice call into a VoIP voice call and delivering the VoIP voice call to a final called user.
Description
Technical Field
The invention relates to a VoIP answering method based on unconditional call forwarding, which is suitable for multiple operators.
Background
Currently, when a mobile phone user is in international roaming, the user normally answers the phone and needs to pay expensive international roaming cost. How to enable international roaming users to answer calls and reduce communication cost as much as possible is a subject worthy of research. The industry has made some efforts in this respect and has commercially available solutions, but all suffer from different deficiencies, so the applicant has worked on and proposed a different solution.
Voip (Voice over Internet protocol) is to digitize an analog signal (Voice) and transmit the digitized signal in a Data Packet (Data Packet) form on an IP Network (IP Network) in real time. The greatest advantage of VoIP is that it can widely adopt the Internet and global IP interconnection environment, providing more and better services than the traditional services. VoIP allows inexpensive delivery of voice, fax, video, and data services such as unified messaging services, virtual telephony, virtual voice/fax mail, directory services, Internet call centers, Internet call management, telephone video conferencing, electronic commerce, fax store-and-forward, and store-and-forward of various information over IP networks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a VoIP answering method based on unconditional call transfer, which is suitable for multiple operators.
The technical scheme for realizing the purpose is as follows: a VoIP answering method based on unconditional call forwarding suitable for multiple operators comprises the following steps:
s1, a set of call forwarding set gateway is placed in the Mobile core network of each Mobile communication operator, the set of call forwarding set gateway and the Mobile core network of the corresponding Mobile communication operator communicate in a mode of a seven-signaling MAP (Mobile Application Part) for realizing the setting of unconditional call forwarding for the Mobile phone user;
s2, a set of central voice processing platform is set in a centralized way, and the call forwarding setting gateway sends the unconditional call forwarding voice call of the mobile phone user of the corresponding mobile communication operator to the central voice processing platform; the central voice processing platform is used for processing the voice call which is transferred in an unconditional call mode, converting the voice call into a VoIP voice call and delivering the VoIP voice call to a final called user;
s3, installing a VoIP application on the mobile phone of the mobile phone user for answering the incoming call in a VoIP mode;
s4, the mobile phone user starts the VoIP answering function through the VoIP application on the mobile phone;
s5, when the calling is coming, the calling is first transferred to the central voice processing platform by the call transfer setting gateway unconditionally; the central voice processing platform processes the voice call of the unconditional call transfer and converts the unconditional call transfer into a VoIP voice call, and the VoIP voice call is established between the central voice processing platform and the called mobile phone user in a pushing mode.
The above-mentioned VoIP answering method based on unconditional call forwarding for multiple operators, wherein in step S4, when the mobile phone user enables VoIP answering, the following steps are executed:
s41, the mobile phone user sends command to the service management server through the VoIP application on the mobile phone;
s42, the service management server sends corresponding command to the call transfer setting gateway;
s43, the call transfer setting gateway sends the corresponding seven signaling MAP message to HLR of the mobile phone user mobile phone number attribution, and completes the setting of unconditional call transfer.
In the above VoIP answering method based on unconditional call forwarding suitable for multiple operators, in step S43, the call forwarding setup gateway communicates with the HLR to which the mobile phone number of the mobile phone user belongs through a corresponding MAP message;
in a Global System for Mobile Communication (GSM) and subsequent evolution networks, the call forwarding setup gateway communicates with an HLR to which a Mobile phone number of a Mobile phone user belongs through a seven-signaling MAP message register ss (a specific message name of a seven-signaling MAP System of a GSM System);
in CDMA (code division multiple access) and subsequent evolution networks, the call forwarding setup gateway communicates with an HLR (Home Location Register) to which the mobile phone number of a mobile phone user belongs through a signaling MAP message featteq (specific message name of a signaling MAP system of CDMA system) and a Home Location Register (HLR).
The above-mentioned VoIP answering method based on unconditional call forwarding suitable for multiple operators, wherein in GSM and subsequent evolution networks, the working flow of the call forwarding setup gateway includes the following steps:
s61, when the mobile phone user starts the VoIP answering function, the function starting request is sent to the service management server through the VoIP application on the mobile phone;
s62, the service management server distinguishes the mobile communication operator to which the mobile phone number of the mobile phone user belongs, and sends an unconditional call forwarding setting request to a call forwarding setting gateway deployed in a mobile core network of the corresponding mobile communication operator;
s63, the call transfer setting gateway receives the unconditional call transfer setting request, generates a MAP layer register SS seven signaling message, and sends the MAP layer register SS seven signaling message to the HLR to which the mobile phone number of the mobile phone user belongs;
s64, after HLR receives MAP layer register SS seven signaling message, unconditional call transfer setting is carried out to mobile phone number of mobile phone user, and setting result is returned to the call transfer setting gateway;
s65, the call forwarding setting gateway returns the result to the service management server;
s66, the service management server feeds back the result to the VoIP application on the mobile phone user handset.
The above-mentioned VoIP answering method based on unconditional call forwarding for multiple operators, wherein in CDMA and subsequent evolution networks, the working flow of the call forwarding setup gateway is similar to that of the call forwarding setup gateway in GSM and subsequent evolution networks, except that the MAP layer register ss seven signaling message in steps S63 and S64 is changed to MAP layer featteq seven signaling message.
The above-mentioned VoIP answering method based on unconditional call forwarding for multiple operators, wherein in step S5, when a call comes, the working process of the central voice processing platform includes the following steps:
s51, the calling mobile phone user dials the mobile phone number of the called mobile phone user;
s52, because the mobile phone number of the called mobile phone user sets unconditional call forwarding, the mobile core network of the mobile communication operator triggers the unconditional call forwarding of the call forwarding setting gateway in the mobile core network, and the call is forwarded to the central voice processing platform;
and S53, the central voice processing platform pushes the incoming call message to the VoIP application on the mobile phone of the called mobile phone user to inform the VoIP application of the mobile phone of the called mobile phone user that the incoming call exists.
S54, after receiving the push incoming message from the central voice processing platform, the VoIP application of the mobile phone user of the called mobile phone sends out ringing to the user of the called mobile phone, and the user of the called mobile phone presses keys to answer;
s55, the VoIP application of the mobile phone of the called mobile phone user requests the center voice processing platform to establish a VoIP voice channel;
and S56, the central voice processing platform establishes a VoIP voice channel.
The above-mentioned VoIP answering method based on unconditional call forwarding for multiple operators, wherein a traditional voice channel is provided between the mobile phone of the calling mobile phone user, the mobile core network of the mobile communication operator and the central voice processing platform, a VoIP voice channel is provided between the central voice processing platform and the VoIP application of the mobile phone of the called mobile phone user, and the central voice processing platform completes the voice conversion between the traditional voice channel and the VoIP voice channel.
The invention relates to a VoIP answering method based on unconditional call forwarding, which is suitable for multiple operators.A set of call forwarding setting gateway is arranged in a mobile core network of each mobile communication operator and is used for setting the unconditional call forwarding of a service user, and a set of central voice processing platform is further intensively arranged and is used for processing the voice call coming from the unconditional call forwarding and converting the voice call into a VoIP voice call, and the VoIP voice call is delivered to a final called user. This provides service to all mobile phone users, rather than a single operator user, while also saving expensive international roaming charges for mobile phone users that roam internationally.
Drawings
FIG. 1 is a flow chart of an unconditional call forwarding based VoIP answering method for multiple operators according to the present invention;
FIG. 2 is a flowchart of call forwarding gateway setup in GSM and subsequent evolution networks;
fig. 3 is a working flow of the central voice processing platform when a calling party is coming.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides a method for receiving VoIP calls based on unconditional call forwarding for multiple operators, which includes the following steps:
s1, a set of call forwarding gateway 1 is placed in the mobile core network of each mobile communication operator, and the call forwarding gateway 1 communicates with the mobile core network 2 of the corresponding mobile communication operator in the form of signaling MAP seven for setting unconditional call forwarding for the mobile phone user 4. For this purpose, a mobile communication operator is required to allocate a seventh signaling point code and a GT code for a corresponding call forwarding setting gateway 1;
s2, a set of central voice processing platform 3 is set up in a centralized way, and the call forwarding gateway 1 sends the unconditional call forwarding voice call of the mobile phone user of the corresponding mobile communication operator to the central voice processing platform 3; the central voice processing platform 3 is used for processing the voice call of the unconditional call forwarding, converting the voice call into a VoIP voice call and delivering the VoIP voice call to the final called user. The central voice processing platform 3 needs to configure an access number and connect with the operator network, and needs to configure a service management server 5 for managing the related functions.
S3, a VoIP application is installed on the mobile phone of the mobile phone user 4 for answering an incoming call in a VoIP manner. This VoIP Application (APP) is installed by the mobile phone user on his own handset.
S4, the mobile phone user 4 starts the VoIP answering function through the VoIP application on the mobile phone; when the mobile phone user enables VoIP answering, the following steps are executed:
s41, the mobile phone user sends the command to the service management server 5 through the VoIP application on the mobile phone;
s42, the service management server 5 sends corresponding command to the call forwarding setting gateway 1;
s43, the call transfer setting gateway 1 sends the corresponding seven signaling MAP message to HLR of the mobile phone user mobile phone number attribution, and completes the setting of the unconditional call transfer.
The call forwarding setting gateway sets unconditional call forwarding in an HLR and completes the unconditional call forwarding through related seven-signaling MAP messages, for example, in a GSM (Global System for Mobile Communication) and a subsequent evolution network, and the call forwarding setting gateway communicates with the HLR to which the Mobile phone number of a Mobile phone user belongs through seven-signaling MAP message register SS (specific message name of the seven-signaling MAP System of the GSM System); in CDMA (code division multiple access) and subsequent evolution networks, the call forwarding setup gateway communicates with the HLR to which the mobile phone number of the mobile phone user belongs through a number seven signaling MAP message featteq (specific message name of a number seven signaling MAP system of CDMA system).
S5, when the calling is coming, the calling is firstly transferred to the central voice processing platform 3 by the call transfer setting gateway 1 unconditionally; the central voice processing platform 3 processes the voice call of the unconditional call transfer and converts the unconditional call transfer into a VoIP voice call, and the VoIP voice call is established between the called mobile phone user and the called mobile phone user in a push mode. The central voice processing platform 3 informs the VoIP application installed on the mobile phone of the called mobile phone user in a push mode, and the VoIP application rings to remind the called user to answer the call.
Taking the signaling MAP system of GSM system as an example to describe the service processing flow of the call forwarding setup gateway 1 in detail, referring to fig. 2, in the GSM and subsequent evolution networks, the working flow of the call forwarding setup gateway 1 includes the following steps:
s61, when the mobile phone user starts the VoIP answering function, the function starting request is sent to the service management server 5 through the VoIP application on the mobile phone;
s62, the service management server 5 distinguishing the mobile communication operator to which the mobile phone number of the mobile phone user belongs, and sending an unconditional call forwarding setting request to the call forwarding setting gateway deployed in the mobile core network 2 of the corresponding mobile communication operator;
s63, after receiving the unconditional call transfer setting request, the call transfer setting gateway 1 generates a MAP layer register SS seven signaling message and sends the MAP layer register SS seven signaling message to the HLR 6 to which the mobile phone number of the mobile phone user belongs;
s64, after HLR 6 receives MAP layer register SS seven signaling message, unconditional call forwarding setting is carried out to mobile phone number of mobile phone user, and setting result is returned to the call forwarding setting gateway 1;
s65, the call forwarding gateway 1 returns the result to the service management server 5;
s66, the service management server 5 feeds back the result to the VoIP application on the mobile phone user' S handset.
In the CDMA and subsequent evolution networks, the work flow of the call forwarding setup gateway is similar to that in the GSM and subsequent evolution networks, except that the MAP layer register ss seven signaling message in steps S63 and S64 is changed to the MAP layer feattreq seven signaling message.
Referring to fig. 3, in step S5, when a caller is coming, the work flow of the central voice processing platform 3 includes the following steps:
s51, the calling mobile phone user 71 dials the mobile phone number of the called mobile phone user;
s52, because the mobile phone number of the called mobile phone user sets unconditional call forwarding, the mobile core network 2 of the mobile communication operator triggers the unconditional call forwarding of the call forwarding setting gateway 1 in the mobile core network, and the call is forwarded to the central voice processing platform 3;
s53, the central voice processing platform 3 pushes an incoming call message to the VoIP application 72 on the handset of the called mobile phone user, informing the VoIP application of the handset of the called mobile phone user that there is an incoming call.
S54, after receiving the incoming call message pushed by the central voice processing platform 3, the VoIP application of the mobile phone user of the called mobile phone sends out ringing to the user of the called mobile phone, and the user of the called mobile phone presses keys to answer;
s55, the VoIP application of the mobile phone of the called mobile phone user requests the center voice processing platform 3 to establish a VoIP voice channel;
s56, the central voice processing platform 3 establishes a VoIP voice channel.
A traditional voice channel is formed between the mobile phone of the calling mobile phone user 71, the mobile core network 2 of the mobile communication operator and the central voice processing platform 3, a VoIP voice channel is formed between the central voice processing platform 3 and the VoIP application 72 of the mobile phone of the called mobile phone user, and the central voice processing platform 3 completes voice conversion between the traditional voice channel and the VoIP voice channel.
In summary, the method for receiving VoIP based on unconditional call forwarding of the present invention is to arrange a set of call forwarding setup gateway in the mobile core network of each mobile communication operator for setting up unconditional call forwarding of the service user, and then to collectively arrange a set of central voice processing platform for processing the voice call coming from the unconditional call forwarding and converting it into VoIP voice call, and delivering the VoIP voice call to the final called user. This provides service to all mobile phone users, rather than a single operator user, while also saving expensive international roaming charges for mobile phone users that roam internationally.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (6)
1. A VoIP answering method based on unconditional call forwarding suitable for multiple operators is characterized by comprising the following steps:
s1, a set of call forwarding set gateway is placed in the mobile core network of each mobile communication operator, the set of call forwarding set gateway and the mobile core network of the corresponding mobile communication operator communicate in a seven signaling MAP mode to realize the setting of unconditional call forwarding for the mobile phone user;
s2, a set of central voice processing platform is set in a centralized way, and the call forwarding setting gateway sends the unconditional call forwarding voice call of the mobile phone user of the corresponding mobile communication operator to the central voice processing platform; the central voice processing platform is used for processing the voice call which is transferred in an unconditional call mode, converting the voice call into a VoIP voice call and delivering the VoIP voice call to a final called user;
s3, installing a VoIP application on the mobile phone of the mobile phone user for answering the incoming call in a VoIP mode;
s4, the mobile phone user starts the VoIP answering function through the VoIP application on the mobile phone, and the following steps are executed:
s41, the mobile phone user sends command to the service management server through the VoIP application on the mobile phone;
s42, the service management server sends corresponding command to the call transfer setting gateway;
s43, the call transfer setting gateway sends the corresponding seven signaling MAP message to the HLR to which the mobile phone number of the mobile phone user belongs, and the setting of unconditional call transfer is completed;
s5, when the calling is coming, the calling is first transferred to the central voice processing platform by the call transfer setting gateway unconditionally; the central voice processing platform processes the voice call of the unconditional call transfer and converts the unconditional call transfer into a VoIP voice call, and the VoIP voice call is established between the central voice processing platform and the called mobile phone user in a pushing mode.
2. The method as claimed in claim 1, wherein in step S43, the call forwarding setup gateway communicates with HLR to which the mobile phone subscriber' S phone number belongs through a corresponding MAP message with seven signaling;
in GSM and subsequent evolution network, the call transfer setting gateway communicates with HLR to which the mobile phone number of the mobile phone user belongs through a seventh signaling MAP message register SS;
in CDMA and subsequent evolution networks, the call forwarding setup gateway communicates with HLR to which the mobile phone number of the mobile phone user belongs through a seventh signaling MAP message FEATREQ.
3. The method as claimed in claim 2, wherein the call forwarding setup gateway is configured to perform the following steps in GSM and subsequent evolution networks:
s61, when the mobile phone user starts the VoIP answering function, the function starting request is sent to the service management server through the VoIP application on the mobile phone;
s62, the service management server distinguishes the mobile communication operator to which the mobile phone number of the mobile phone user belongs, and sends an unconditional call forwarding setting request to a call forwarding setting gateway deployed in a mobile core network of the corresponding mobile communication operator;
s63, the call transfer setting gateway receives the unconditional call transfer setting request, generates a MAP layer register SS seven signaling message, and sends the MAP layer register SS seven signaling message to the HLR to which the mobile phone number of the mobile phone user belongs;
s64, after HLR receives MAP layer register SS seven signaling message, unconditional call transfer setting is carried out to mobile phone number of mobile phone user, and setting result is returned to the call transfer setting gateway;
s65, the call forwarding setting gateway returns the result to the service management server;
s66, the service management server feeds back the result to the VoIP application on the mobile phone user handset.
4. The method as claimed in claim 3, wherein the call setup gateway has a similar operation procedure to the call setup gateway in the GSM and the subsequent evolution networks, except that the MAP layer RegisterSS seven signaling message in steps S63 and S64 is changed to the MAP layer FEATREQ seven signaling message.
5. The method as claimed in claim 1, wherein in step S5, the working process of the central voice processing platform when a caller is coming includes the following steps:
s51, the calling mobile phone user dials the mobile phone number of the called mobile phone user;
s52, because the mobile phone number of the called mobile phone user sets unconditional call forwarding, the mobile core network of the mobile communication operator triggers the unconditional call forwarding of the call forwarding setting gateway in the mobile core network, and the call is forwarded to the central voice processing platform;
s53, the central voice processing platform pushes the incoming call message to the VoIP application on the mobile phone of the called mobile phone user, and informs the VoIP application of the mobile phone of the called mobile phone user that there is an incoming call;
s54, after receiving the push incoming message from the central voice processing platform, the VoIP application of the mobile phone user of the called mobile phone sends out ringing to the user of the called mobile phone, and the user of the called mobile phone presses keys to answer;
s55, the VoIP application of the mobile phone of the called mobile phone user requests the center voice processing platform to establish a VoIP voice channel;
and S56, the central voice processing platform establishes a VoIP voice channel.
6. The method as claimed in claim 5, wherein a conventional voice channel is provided between the mobile phone of the calling mobile phone user, the mobile core network of the mobile communication operator and the central voice processing platform, a VoIP voice channel is provided between the central voice processing platform and the VoIP application of the mobile phone of the called mobile phone user, and the central voice processing platform performs voice conversion between the conventional voice channel and the VoIP voice channel.
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