CN107135500B - Telephone calling method and device - Google Patents

Telephone calling method and device Download PDF

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Publication number
CN107135500B
CN107135500B CN201710312384.4A CN201710312384A CN107135500B CN 107135500 B CN107135500 B CN 107135500B CN 201710312384 A CN201710312384 A CN 201710312384A CN 107135500 B CN107135500 B CN 107135500B
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China
Prior art keywords
roaming
phone number
mobile phone
home server
imsi
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CN107135500A (en
Inventor
张伦泳
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/10—Mobility data transfer between location register and external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Abstract

The invention provides a telephone calling method and a device, which utilize a home server of a home location of a called user to judge whether the called user is out of the country, if the called user is out of the country, initiate inquiry to a special home server of the home location of the called user, if the identification of a roaming special home server corresponding to the called user and a mobile phone number of a roaming place are inquired, the called user is registered in the roaming place, initiate a calling request to the mobile phone number of the roaming place through the roaming special home server of the roaming place of the called user, thereby automatically establishing calling connection between the calling user and the called user. By the scheme of the invention, when the called user has international roaming and already uses the mobile phone number of the roaming place, the calling user can automatically switch to the mobile phone number of the roaming place of the called user when dialing the mobile phone number of the home place of the called user, thereby establishing the call connection between the calling user and the called user.

Description

Telephone calling method and device
Technical Field
The invention relates to the technical field of communication, in particular to a telephone calling method and a telephone calling device.
Background
If the international roaming authority is not opened in advance, the roaming of the user is not realized in the roaming place through the authorization of the home network. Even in the case of acquiring the number of the roaming cell phone, since the roaming outbound subscriber is still in a power-off (or out of service) state in the home network, other outbound phones cannot establish a call relationship therewith through their numbers in the home network. Unless the roaming outbound user actively informs relatives and friends of the roaming user at the roaming place, the relatives and friends of the roaming user directly dial the mobile phone number of the roaming place to realize the call, or the roaming outbound user only can call the foreign phone (i.e. other numbers of the country). Therefore, great inconvenience is brought to the roaming outbound user using the mobile phone number of the roaming place.
Therefore, a telephone calling scheme is needed to solve the above technical problems.
Disclosure of Invention
The present invention provides a telephone calling method and device for solving at least part of the problem that the overseas user can not call the overseas user using the telephone number of the roaming mobile phone.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a telephone calling method, which comprises the following steps:
receiving a roaming place registration query request sent by a home server, wherein the roaming place registration query request is sent when the home server receives a call request sent by a calling party and judges that a called party is out;
inquiring the corresponding relation among the IMSI, the roaming mobile phone number, the home location mobile phone number and the identifier of the roaming special home server according to the international mobile subscriber identity IMSI carried in the roaming location registration inquiry request;
if the roaming mobile phone number corresponding to the IMSI and the identifier of the roaming special home server are inquired, returning an inquiry result carrying the roaming mobile phone number and the identifier of the roaming special home server to the home server, so that the home server calls the roaming mobile phone number of the called user through the roaming special home server.
Preferably, the correspondence between the IMSI, the roaming mobile phone number, the home mobile phone number, and the identifier of the roaming dedicated home server is established by the following steps:
receiving a home mobile phone number query request sent by a roaming special home server, wherein the home mobile phone number query request is sent by the roaming special home server after a roaming mobile phone number is allocated to the called user, and the home mobile phone number query request carries an IMSI (international mobile subscriber identity), the roaming mobile phone number and an identifier of the roaming special home server;
and inquiring the corresponding home mobile phone number according to the IMSI, and recording the corresponding relation among the IMSI, the roaming mobile phone number, the home mobile phone number and the identifier of the roaming special home server.
The invention also provides a telephone calling method, which comprises the following steps:
after a roaming mobile phone number is distributed to an international roaming user without international roaming authority, a special home server is determined according to a country code and a mobile network code in the IMSI of the user;
and sending a home mobile phone number query request to the special home server so that the special home server queries the home mobile phone number corresponding to the IMSI, and records the corresponding relation among the IMSI, the roaming mobile phone number, the home mobile phone number and the identifier of the special roaming home server.
Further, the method further comprises:
receiving a call request sent by a home server;
and initiating a call to the mobile phone number of the roaming place according to the mobile phone number of the roaming place carried in the call request.
The invention also provides a telephone calling method, which comprises the following steps:
receiving a call request, and judging whether a called user is out;
if the called user is out of the country, sending a roaming registration inquiry request carrying the IMSI of the called user to a special home server so that the special home server inquires whether the IMSI has a corresponding roaming mobile phone number and an identifier of the roaming special home server;
and receiving a query result returned by the special home server, and if the query result carries the roaming-place mobile phone number corresponding to the IMSI and the identifier of the roaming-place home server, initiating a call request to the roaming-place home server so that the roaming-place home server calls the roaming-place mobile phone number of the called user.
Preferably, the call request carries the IMSI of the called user;
the determining whether the called user has exited specifically includes:
judging whether the called user logs in a home network and whether a roaming registration failure event occurs or not according to the IMSI of the called user carried in the call request;
and if the called user is not logged in the home network and a roaming registration failure event occurs, determining that the called user is out of the home network.
The present invention also provides a dedicated home server, comprising: a first receiving module, a processing module and a first sending module,
the first receiving module is used for receiving a roaming place registration query request sent by a home server, wherein the roaming place registration query request is sent when the home server receives a call request sent by a calling party and judges that a called party is out;
the processing module is used for inquiring the corresponding relation among the IMSI, the roaming mobile phone number, the home mobile phone number and the identifier of the roaming special home server according to the International Mobile Subscriber Identity (IMSI) carried in the roaming place registration inquiry request; when the roaming mobile phone number corresponding to the IMSI and the identifier of the roaming special home server are inquired, the first sending module is indicated to return an inquiry result carrying the roaming mobile phone number and the identifier of the roaming special home server to the home server, so that the home server calls the roaming mobile phone number of the called user through the roaming special home server.
Further, the dedicated home server further includes a second receiving module, where the second receiving module is configured to receive a home cell phone number query request sent by a roaming-dedicated home server, where the home cell phone number query request is sent by the roaming-dedicated home server after a roaming cell phone number is allocated to the called user, and carries an IMSI, a roaming cell phone number, and an identifier of the roaming-dedicated home server;
the processing module is further used for inquiring the corresponding home location mobile phone number according to the IMSI and recording the corresponding relation among the IMSI, the roaming location mobile phone number, the home location mobile phone number and the identifier of the roaming special home server.
The present invention also provides a roaming-dedicated home server, comprising: a processing module and a first sending module,
the processing module is used for determining a special home server according to a country code and a mobile network code in the IMSI of the user after distributing a roaming mobile phone number to an international roaming user without international roaming authority; and instructing the first sending module to send a home mobile phone number query request to the special home server so that the special home server queries a home mobile phone number corresponding to the IMSI, and records a corresponding relationship among the IMSI, the roaming mobile phone number, the home mobile phone number and an identifier of the special roaming home server.
Furthermore, the roaming-dedicated home server further comprises a first receiving module and a second sending module;
the first receiving module is used for receiving a call request sent by a home server;
the processing module is further configured to instruct the second sending module to initiate a call to the mobile phone number of the roaming destination according to the mobile phone number of the roaming destination carried in the call request.
The present invention also provides a home server, comprising: the system comprises a first receiving module, a processing module, a second sending module, a second receiving module and a calling module;
the first receiving module is used for receiving a call request;
the second receiving module is used for receiving the query result returned by the special home server;
the processing module is used for judging whether a called user is outbound or not, and when the called user is outbound, the processing module instructs the second sending module to send a roaming registration inquiry request carrying the IMSI of the called user to a special home server so that the special home server inquires whether the IMSI has a corresponding roaming place mobile phone number and an identifier of the roaming special home server or not; and when the query result carries the identifier of the roaming-place mobile phone number corresponding to the IMSI and the identifier of the roaming-dedicated home server, indicating the calling module to initiate a calling request to the roaming-dedicated home server so that the roaming-dedicated home server calls the roaming-place mobile phone number of the called user.
Preferably, the call request carries the IMSI of the called user;
the processing module is specifically configured to determine, according to the IMSI of the called user carried in the call request, whether the called user logs in a home network and whether a roaming registration failure event occurs; and when the called user is not logged in the home network and a roaming registration failure event occurs, determining that the called user is out of the home network.
The invention judges whether the called user is out by using the home server of the home location of the called user, if the called user is out, the invention initiates inquiry to the special home server of the home location of the called user, if the identification of the roaming special home server corresponding to the called user and the mobile phone number of the roaming place are inquired, the called user is registered in the roaming place, the calling request is initiated to the mobile phone number of the roaming place by the roaming special home server of the roaming place of the called user, thereby automatically establishing the calling connection between the calling user and the called user. By the scheme of the invention, when the called party has international roaming and uses the mobile phone number of the roaming place, when the calling party dials the mobile phone number of the home place of the called party, the call connection between the calling party and the called party can be automatically switched, and the international roaming user does not need to actively inform the mobile phone number of the home place of the international roaming user to the mobile phone number of the roaming place, thereby providing great convenience for the international roaming user and the mobile phone user of the home place of the calling international roaming user.
Drawings
Fig. 1 is a schematic diagram of a network topology provided in an embodiment of the present invention;
fig. 2 is a signaling flow diagram of a telephone call method according to an embodiment of the present invention;
fig. 3 is a flowchart of establishing a correspondence relationship between an IMSI, a roaming mobile phone number, a home mobile phone number, and an identifier of a dedicated roaming home server according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a dedicated home server according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a dedicated roaming home server according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a home server according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a telephone calling scheme aiming at the problem that a home calling user of a user who has international roaming and uses a roaming mobile phone number can not directly call the roaming user in the prior art, so that the home mobile phone user of the roaming user can conveniently call the roaming user.
The invention provides a telephone calling method, the network topology structure applied by the method is shown in figure 1, the network comprises the home operator network of the called user (also the home operator network of the calling user) and the roaming operator network of the called user, the home operator network equipment of the called user comprises: the system comprises a special Home Server 1 and a Home Server 2, wherein the special Home Server 1 is used for storing a Home Location mobile phone number of a mobile phone user, roaming special Home Server information of a roaming Location and mobile phone number information of the roaming Location, and can be an HLR (Home Location Register) or an HSS (Home Subscriber Server). The home server 2 is used to record login information, roaming registration status information, and the like of the home subscriber, and may be an HLR or an HSS. The network device of the operator at the roaming place of the called user comprises a roaming special home server 3, the roaming special home server 3 is used for identifying the special home server of the operator at the roaming place according to the IMSI (International Mobile subscriber identity Number), and completing data interaction with the special home server of the operator at the roaming place to inform the registration state of the user at the roaming place of the related home place, and the roaming special home server 3 can be an HLR or an HSS.
It should be noted that, in the embodiment of the present invention, the calling subscriber and the called subscriber are both mobile phone subscribers with the same home location, and the home locations of the calling subscriber and the called subscriber and the roaming location of the called subscriber are different countries.
The phone call flow of the present invention is described in detail below in conjunction with fig. 2. As shown in fig. 2, the telephone call flow includes the following steps:
step 201, the home server receives a call request initiated by a calling user.
Specifically, a mobile phone user (i.e., a calling user) in the same home location as the called user calls a mobile phone number of the called user in the home location network, that is, the calling user initiates a call request to the home server, where the call request carries the IMSI of the called user.
In step 202, the home server determines whether the called user is outbound.
Specifically, the home server determines whether the called user logs in the home network and a roaming registration failure event occurs according to the IMSI of the called user carried in the call request, and determines that the called user is out of the home network if the called user does not log in the home network and the roaming registration failure event occurs.
It should be noted that if the called user is not registered in the home network, the called user may be powered off, or the called user may be out. If the user has a roaming registration failure event, it indicates that the user has international roaming and does not open the international roaming authority. Therefore, if the called user is not registered in the home network and the roaming registration failure event occurs, it indicates that the called user is outbound (i.e. international roaming has occurred and the user does not open the international roaming right), in this case, it needs to further determine whether the called user is successfully registered in roaming (i.e. step 203 and 205 are executed).
In step 203, the home server sends a roaming registration query to the dedicated home server.
Specifically, when the home server determines that the called user is outbound, a roaming registration inquiry request is sent to the dedicated home server to determine whether the called user is registered in a roaming place, wherein the roaming registration inquiry request carries the IMSI of the called user.
Step 204, the special home server inquires whether the IMSI has a corresponding roaming mobile phone number and an identifier of the roaming special home server.
Specifically, the dedicated home server stores a corresponding relationship between the IMSI, the roaming mobile phone number, the home mobile phone number, and the identifier of the dedicated roaming home server, and the process of establishing the corresponding relationship will be described in detail with reference to fig. 3.
And the special home server locally inquires the corresponding relation among the IMSI, the roaming mobile phone number, the home mobile phone number and the identifier of the special roaming home server according to the IMSI carried in the roaming place registration inquiry request.
If the roaming mobile phone number corresponding to the IMSI and the identifier of the roaming-specific home server are inquired, it is indicated that the called user has successfully registered in the roaming place, that is, the roaming-specific home server in the roaming place has allocated the mobile phone number of the roaming place to the called user in the roaming place, and the called user has used the mobile phone number of the roaming place in the roaming place. In this case, the call connection can be established by calling the mobile phone number of the roaming place of the called subscriber.
If the mobile phone number of the roaming place corresponding to the IMSI and the identifier of the roaming-dedicated home server are not queried, it is indicated that the called user is not successfully registered in the roaming place, that is, the called user does not use the mobile phone number of the roaming place in the roaming place. That is, the called party does not have the international roaming authority, cannot use the mobile phone number of the home location of the called party in the roaming place, and cannot establish call connection with the called party in the case of not using the mobile phone number of the roaming place.
In step 205, the dedicated home server returns the query result to the home server.
Specifically, if the dedicated home server queries the roaming-location mobile phone number and the identifier of the roaming-dedicated home server corresponding to the IMSI, the roaming-location mobile phone number and the identifier of the roaming-dedicated home server are carried in the query result, and the query result is returned to the home server.
Step 206-.
Specifically, the home server sends a call request to the roaming-dedicated home server, where the call request carries a mobile phone number of a roaming location of the called subscriber. And the roaming special home server initiates a call to the mobile phone number of the roaming place according to the mobile phone number of the roaming place of the called user carried in the call request.
Therefore, the calling mobile phone and the called mobile phone roaming to the roaming place internationally complete the call connection through the home mobile phone number of the called user.
It can be seen from the above step 201 and step 207 that, the home server of the home location of the called user is utilized to determine whether the called user has gone out, if the called user has gone out, an inquiry is initiated to the dedicated home server of the home location of the called user, and if the identifier of the roaming dedicated home server and the mobile phone number of the roaming location corresponding to the called user are inquired, which indicates that the called user has been registered in the roaming location, a call request is initiated to the mobile phone number of the roaming location through the roaming dedicated home server of the roaming location of the called user, so as to automatically establish a call connection between the calling user and the called user. By the scheme of the invention, when the called party has international roaming and uses the mobile phone number of the roaming place, when the calling party dials the mobile phone number of the home place of the called party, the call connection between the calling party and the called party can be automatically switched, and the international roaming user does not need to actively inform the mobile phone number of the home place of the international roaming user to the mobile phone number of the roaming place, thereby providing great convenience for the international roaming user and the mobile phone user of the home place of the calling international roaming user.
The following describes in detail the procedure of establishing the correspondence between the IMSI, the roaming mobile phone number, the home mobile phone number, and the identifier of the roaming-dedicated home server with reference to fig. 3. As shown in fig. 3, the process includes the following steps:
step 301, after allocating a roaming mobile phone number to an international roaming user without international roaming authority, the dedicated roaming home server determines the dedicated home server according to a country code and a mobile network code in the IMSI of the user.
Specifically, an overseas mobile phone user roaming to the local area but not opening international roaming in advance (i.e. a roaming unauthorized mobile phone user) may register to a roaming-dedicated home server specifically set for the roaming unauthorized mobile phone user after the mobile phone fails to start to log in to the roaming-location network, and the roaming-dedicated home server allocates a local mobile phone number (i.e. a roaming-location mobile phone number) to the roaming-unauthorized mobile phone user for the roaming-location use.
In the scheme of the invention, the international roaming user without the international roaming authority (i.e. the roaming-in unauthorized mobile phone user) is the called user.
It should be noted that the IMSI is a 15-digit decimal number, and the structure thereof includes: MCC (Mobile Country Code) + MNC (Mobile Network Code) + MSIN (Mobile subscriber identification Number).
The MCC resources are uniformly distributed and managed by the International Telecommunications Union (ITU) worldwide, uniquely identifying the country to which the mobile subscriber belongs, 3 digits in total, and 460 in china. The MNC is used to identify the mobile communication network to which the mobile user belongs, 2-3 bits, generally, one operator of a certain country corresponds to one PLMN, the chinese mobile system uses 00, 02, 04, 07, the chinese unicom GSM system uses 01, 06, 09, the chinese telecommunications CDMA system uses 03, 05, the telecommunications 4G uses 11, and the chinese iron system uses 20. MSIN is used to identify mobile subscribers in a mobile communications network and has a total of 10 digits.
The roaming private home server may determine the private home server of the home operator of the subscriber based on the MCC and MNC in the IMSI.
Step 302, the roaming-specific home server sends a home cell phone number query request to the specific home server.
Specifically, the home mobile phone number query request carries the IMSI of the called user, the roaming mobile phone number, and the identifier of the roaming home server.
Step 303-.
It can be seen from step 301 and step 304 that, once the international roaming user successfully registers in the roaming area, the dedicated roaming home server notifies the registration information (including the IMSI, the roaming mobile phone number, and the identifier of the roaming home server) of the user to the dedicated home server of the home location of the user through the home location mobile phone number query request, the dedicated home server determines the home location mobile phone number of the user, and establishes the binding relationship between the home location mobile phone number of the user and the roaming mobile phone number, and when the home location user calls the home location mobile phone number of the user, the call connection with the roaming mobile phone number can be automatically established according to the binding relationship.
Based on the same technical concept, an embodiment of the present invention further provides a dedicated home server, as shown in fig. 4, where the dedicated home server includes: a first receiving module 41, a processing module 42 and a first transmitting module 43.
The first receiving module 41 is configured to receive a roaming location registration query request sent by a home server, where the roaming location registration query request is sent by the home server when the home server receives a call request sent by a calling party and determines that a called party is outbound.
The processing module 42 is configured to query, according to the international mobile subscriber identity IMSI carried in the roaming-location registration query request, a correspondence between the IMSI, the roaming-location mobile phone number, the home-location mobile phone number, and the identifier of the roaming-dedicated home server; when the roaming mobile phone number corresponding to the IMSI and the identifier of the roaming-specific home server are queried, the first sending module 43 is instructed to return a query result carrying the roaming mobile phone number and the identifier of the roaming-specific home server to the home server, so that the home server calls the roaming mobile phone number of the called subscriber through the roaming-specific home server.
Further, the dedicated home server further includes a second receiving module 44, where the second receiving module 44 is configured to receive a home cell phone number query request sent by a roaming-dedicated home server, where the home cell phone number query request is sent by the roaming-dedicated home server after allocating a roaming cell phone number to the called user, where the home cell phone number query request carries an IMSI, a roaming cell phone number, and an identifier of the roaming-dedicated home server.
The processing module 42 is further configured to query a corresponding home cell phone number according to the IMSI, and record a corresponding relationship between the IMSI, the roaming cell phone number, the home cell phone number, and an identifier of the roaming-dedicated home server.
Based on the same technical concept, an embodiment of the present invention further provides a dedicated roaming home server, as shown in fig. 5, where the dedicated roaming home server includes: a processing module 51 and a first transmitting module 52.
The processing module 51 is configured to, after allocating a roaming mobile phone number to an international roaming user without international roaming authority, determine a dedicated home server according to a country code and a mobile network code in the IMSI of the user; and, instruct the first sending module 52 to send a home cell phone number query request to the dedicated home server, so that the dedicated home server queries the home cell phone number corresponding to the IMSI, and records the correspondence between the IMSI, the roaming cell phone number, the home cell phone number, and the identifier of the roaming dedicated home server.
Further, the roaming-dedicated home server further includes a first receiving module 53 and a second sending module 54.
The first receiving module 53 is configured to receive a call request sent by a home server.
The processing module 51 is further configured to instruct the second sending module 54 to initiate a call to the roaming-destination mobile phone number according to the roaming-destination mobile phone number carried in the call request.
Based on the same technical concept, an embodiment of the present invention further provides a home server, as shown in fig. 6, where the home server includes: a first receiving module 61, a processing module 62, a second sending module 63, a second receiving module 64, and a calling module 65.
The first receiving module 61 is configured to receive a call request.
The second receiving module 64 is configured to receive a query result returned by the dedicated home server.
The processing module 62 is configured to determine whether a called user is outbound, and when the called user is outbound, instruct the second sending module 63 to send a roaming registration query request carrying the IMSI of the called user to a dedicated home server, so that the dedicated home server queries whether the IMSI has a corresponding roaming-location mobile phone number and an identifier of the roaming-dedicated home server; and, when the query result carries the identifier of the roaming-destination mobile phone number and the identifier of the roaming-dedicated home server corresponding to the IMSI, instructing the calling module 65 to initiate a call request to the roaming-dedicated home server, so that the roaming-dedicated home server calls the roaming-destination mobile phone number of the called subscriber.
Specifically, the call request carries the IMSI of the called user.
The processing module 62 is specifically configured to determine, according to the IMSI of the called user carried in the call request, whether the called user logs in the home network and a roaming registration failure event occurs, and when the called user does not log in the home network and a roaming registration failure event occurs, determine that the called user is out of home.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (6)

1. A method of telephone calling, the method comprising:
receiving a roaming place registration inquiry request sent by a home server, wherein the roaming place registration inquiry request is sent when the home server receives a call request which is sent by a calling party and carries an International Mobile Subscriber Identity (IMSI) of a called party, and judges that the called party is not logged in a home network and a roaming registration failure event occurs according to the IMSI of the called party;
inquiring the corresponding relation among the IMSI, the roaming place mobile phone number, the home location mobile phone number and the identifier of the roaming special home server according to the IMSI carried in the roaming place registration inquiry request;
if the roaming mobile phone number corresponding to the IMSI and the identifier of the roaming special home server are inquired, returning an inquiry result carrying the roaming mobile phone number and the identifier of the roaming special home server to the home server so that the home server calls the roaming mobile phone number of the called user through the roaming special home server;
wherein, the corresponding relation among the IMSI, the mobile phone number of the roaming place, the mobile phone number of the home place and the mark of the special home server for roaming is established by the following steps:
receiving a home mobile phone number query request sent by a roaming special home server, wherein the home mobile phone number query request is sent by the roaming special home server after a roaming mobile phone number is allocated to the called user, and the home mobile phone number query request carries an IMSI (international mobile subscriber identity), the roaming mobile phone number and an identifier of the roaming special home server;
and inquiring the corresponding home mobile phone number according to the IMSI, and recording the corresponding relation among the IMSI, the roaming mobile phone number, the home mobile phone number and the identifier of the roaming special home server.
2. A method of telephone calling, the method comprising:
after a roaming mobile phone number is distributed to an international roaming user without international roaming authority, a special home server is determined according to a country code and a mobile network code in the IMSI of the user;
sending a home mobile phone number query request to the special home server so that the special home server queries a home mobile phone number corresponding to the IMSI, and records a corresponding relation between the IMSI, a roaming mobile phone number, the home mobile phone number and an identifier of the special roaming home server;
receiving a call request sent by a home server;
and initiating a call to the mobile phone number of the roaming place according to the mobile phone number of the roaming place carried in the call request.
3. A method of telephone calling, the method comprising:
receiving a call request, wherein the call request carries the IMSI of a called user;
if the called user is judged not to be logged in the home network and a roaming registration failure event occurs according to the IMSI of the called user, sending a roaming registration inquiry request carrying the IMSI of the called user to a special home server so that the special home server inquires whether the IMSI has a corresponding roaming-place mobile phone number and an identifier of the roaming-special home server;
and receiving a query result returned by the special home server, and if the query result carries the roaming-place mobile phone number corresponding to the IMSI and the identifier of the roaming-place home server, initiating a call request to the roaming-place home server so that the roaming-place home server calls the roaming-place mobile phone number of the called user.
4. A dedicated home server, comprising: a first receiving module, a second receiving module, a processing module and a first sending module,
the first receiving module is used for receiving a roaming place registration inquiry request sent by an attribution server, wherein the roaming place registration inquiry request is sent when the attribution server receives a call request which is sent by a calling subscriber and carries an International Mobile Subscriber Identity (IMSI) of a called subscriber, and the call request is sent when the called subscriber is judged to be not logged in a attribution network and a roaming registration failure event occurs according to the IMSI of the called subscriber;
the processing module is used for inquiring the corresponding relation among the IMSI, the roaming mobile phone number, the home mobile phone number and the identifier of the roaming special home server according to the International Mobile Subscriber Identity (IMSI) carried in the roaming place registration inquiry request; when the roaming mobile phone number corresponding to the IMSI and the identifier of the roaming special home server are inquired, the first sending module is indicated to return an inquiry result carrying the roaming mobile phone number and the identifier of the roaming special home server to the home server, so that the home server calls the roaming mobile phone number of the called user through the roaming special home server;
the second receiving module is configured to receive a home cell phone number query request sent by a roaming-dedicated home server, where the home cell phone number query request is sent by the roaming-dedicated home server after allocating a roaming-dedicated cell phone number to the called subscriber, and carries an IMSI, a roaming-dedicated cell phone number, and an identifier of the roaming-dedicated home server;
the processing module is further used for inquiring the corresponding home location mobile phone number according to the IMSI and recording the corresponding relation among the IMSI, the roaming location mobile phone number, the home location mobile phone number and the identifier of the roaming special home server.
5. A roaming-specific home server, comprising: a processing module, a first sending module, a first receiving module and a second sending module,
the processing module is used for determining a special home server according to a country code and a mobile network code in the IMSI of the user after distributing a roaming mobile phone number to an international roaming user without international roaming authority; the first sending module is instructed to send a home mobile phone number inquiry request to the special home server so that the special home server inquires a home mobile phone number corresponding to the IMSI, and records the corresponding relation among the IMSI, the roaming mobile phone number, the home mobile phone number and the identifier of the special roaming home server;
the first receiving module is used for receiving a call request sent by a home server;
the processing module is further configured to instruct the second sending module to initiate a call to the mobile phone number of the roaming destination according to the mobile phone number of the roaming destination carried in the call request.
6. A home server, comprising: the system comprises a first receiving module, a processing module, a second sending module, a second receiving module and a calling module;
the first receiving module is used for receiving a call request, wherein the call request carries the IMSI of a called user;
the second receiving module is used for receiving the query result returned by the special home server;
the processing module is used for indicating the second sending module to send a roaming registration inquiry request carrying the IMSI of the called user to a special home server when the called user is judged not to be logged in a home network and a roaming registration failure event occurs according to the IMSI of the called user, so that the special home server inquires whether the IMSI has a corresponding roaming mobile phone number and an identifier of a roaming special home server; and when the query result carries the identifier of the roaming-place mobile phone number corresponding to the IMSI and the identifier of the roaming-dedicated home server, indicating the calling module to initiate a calling request to the roaming-dedicated home server so that the roaming-dedicated home server calls the roaming-place mobile phone number of the called user.
CN201710312384.4A 2017-05-05 2017-05-05 Telephone calling method and device Active CN107135500B (en)

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CN101098558A (en) * 2007-06-14 2008-01-02 中兴通讯股份有限公司 International roaming proxy calling service method
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