CN111314265B - Method and device for realizing supplementary service processing in VOLTE network - Google Patents

Method and device for realizing supplementary service processing in VOLTE network Download PDF

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CN111314265B
CN111314265B CN201811506939.XA CN201811506939A CN111314265B CN 111314265 B CN111314265 B CN 111314265B CN 201811506939 A CN201811506939 A CN 201811506939A CN 111314265 B CN111314265 B CN 111314265B
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service
supplementary
call signaling
signaling request
code
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CN111314265A (en
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曹进
陈尚干
张旭红
那晓骏
陈美�
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • 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
    • H04L65/10—Architectures or entities
    • H04L65/1063—Application servers providing network services

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Abstract

The invention provides a method and a device for realizing supplementary service processing in a VOLTE network, and relates to the field of mobile communication. The method comprises the following steps: SCSCF sends a call signaling request initiated by a terminal to an MMTEL AS, wherein the call signaling request carries a service supplementary code; and the MMTEL AS identifies the service supplementary code in the call signaling request and changes and/or sets the corresponding supplementary service according to the service supplementary code. The disaster recovery scheme can be provided when the BSF/AP server fails. In addition, the method can inherit the use habit that the original CDMA network user dials the service supplementary code through a dialing interface to realize the change and the setting of the supplementary service.

Description

Method and device for realizing supplementary service processing in VOLTE network
Technical Field
The present disclosure relates to the field of mobile communications, and in particular, to a method and an apparatus for implementing supplementary service processing in a Voice over Long-Term Evolution (VOLTE) network.
Background
In a CDMA (Code Division Multiple Access) network, a supplementary service associated with a service supplementary Code, such as 72, may be set in an HLR (Home Location Register), a supplementary service Code, such as 72xxxxxxxxxxx, may be dialed on a terminal dialing interface to activate the supplementary service, and a supplementary service Code, such as 720, may be dialed to deactivate the service.
However, to implement the service supplementary code associated supplementary service in the VOLTE network, a BSF (Bootstrapping Server Function)/AP (Wireless Access Point) Server needs to be centrally set, and supplementary service change is set through a Ut interface. For example, a supplementary service change is set by clicking in a setting menu, a BSF/AP Server address is acquired through a public Domain Name System (DNS) address, and after authentication, the supplementary service is changed and set to an MMTEL-AS (Multi Media telephone service Application Server) through a Ut interface. Under the condition that the BSF/AP server fails, the supplementary service cannot be processed.
Disclosure of Invention
The technical problem to be solved by the present disclosure is to provide a method and an apparatus for implementing supplementary service processing in a VOLTE network, which can still implement the processing of supplementary services when a BSF/AP server fails.
According to one aspect of the present disclosure, a method for implementing supplementary service processing in a VOLTE network is provided, including: a service call session control function SCSCF sends a call signaling request initiated by a terminal to a multimedia telephone service application server MMTEL AS, wherein the call signaling request carries a service supplementary code; and the MMTEL AS identifies the service supplementary code in the call signaling request, and changes and/or sets the corresponding supplementary service according to the service supplementary code.
In one embodiment, the MMTEL AS identifies a service supplementary code in the call signaling request, and changing and/or setting the corresponding supplementary service according to the service supplementary code includes: the MMTEL AS identifies the bit length of the service supplementary code by using a modified local number first set MOD LDNSET command, and if the bit length of the service supplementary code exceeds a threshold value, the service supplementary code is not subjected to truncation processing; and adding a supplementary service operation group by using an ADD NSOPERATE command for adding new service operation configuration, and matching the service supplementary code with the corresponding supplementary service by using an ADD called number analysis ADD CNACLD command to realize the change and/or the setting of the corresponding supplementary service.
In one embodiment, the SCSCF sending the call signaling request initiated by the terminal to the MMTEL AS includes: after receiving a call signaling request initiated by a terminal, the SCSCF triggers an initial filtering rule iFC, judges whether the call signaling request is carried by a service supplementary code, if so, directly sends the call signaling request to an MMTEL AS, otherwise, sends the call signaling request to a service control point application server SCP AS, so that the SCP AS forwards the call signaling request to the MMTEL AS.
In one embodiment, the SCSCF modifies the iFC by using a command of modifying the shared iFC data MOD SIFCINF to directly send the call signaling request carrying the service supplementary code to the MMTEL AS.
In one embodiment, a modify shared ifcc data MOD HSIFCINF command is used in a home subscriber server HSS to modify ifcs to directly send a call signaling request carrying a service supplementary code to an MMTEL AS.
In another embodiment of the present disclosure, an apparatus for implementing supplementary service processing in a VOLTE network is further provided, including: a service call session control function SCSCF, which is used for sending a call signaling request initiated by a terminal to a multimedia telephone service application server MMTEL AS, wherein the call signaling request carries a service supplementary code; and the MMTEL AS is used for identifying the service supplementary code in the call signaling request and changing and/or setting the corresponding supplementary service according to the service supplementary code.
In one embodiment, the MMTEL AS is used for identifying the bit length of the service supplementary code by using a command of modifying a local number first set MOD LDNSET, and if the bit length of the service supplementary code exceeds a threshold, the service supplementary code is not intercepted; and adding a supplementary service operation group by adding a new service operation configuration ADD NSOPERATE command, and matching the service supplementary code with the corresponding supplementary service by adding a called number analysis ADD CNACLD command to realize the change and/or the setting of the corresponding supplementary service.
In one embodiment, the SCSCF is configured to trigger an initial filtering rule iFC after receiving a call signaling request initiated by a terminal, determine whether the call signaling request carries a service supplementary code, directly send the call signaling request to the MMTEL AS if the call signaling request carries the service supplementary code, and send the call signaling request to the service control point application server SCP AS if the call signaling request carries the service supplementary code, so that the SCP AS forwards the call signaling request to the MMTEL AS.
In one embodiment, the SCSCF is configured to modify the iFC by using a command for modifying the shared iFC data MOD SIFCINF, so AS to directly send the call signaling request carrying the service supplementary code to the MMTEL AS.
In one embodiment, the call signaling request carrying the service supplementary code is directly sent to the MMTEL AS by modifying the iFC using the modify shared iFC data MOD HSIFCINF command in the home subscriber server HSS.
In another embodiment of the present disclosure, an apparatus for implementing supplementary service processing in a VOLTE network is further provided, including: a memory; and a processor coupled to the memory, the processor configured to execute a method of implementing supplementary service processing under a VOLTE network as described above based on the instructions stored in the memory.
In another embodiment of the present disclosure, a computer-readable storage medium is further proposed, on which computer program instructions are stored, which when executed by a processor, implement the steps of the above-mentioned method for implementing supplementary service processing in a VOLTE network.
Compared with the related art, in the VOLTE network in the embodiment of the present disclosure, the SCSCF sends a call signaling request initiated by the terminal to the MMTEL AS, where the call signaling request carries a service supplementary code, and the MMTEL AS identifies the service supplementary code in the call signaling request, and changes and sets a corresponding supplementary service according to the service supplementary code. In addition, the method can inherit the use habit that the original CDMA network user dials the service supplementary code through a dialing interface to realize the change and the setting of the supplementary service.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
fig. 1 is a flowchart illustrating an embodiment of a method for implementing supplementary service processing in a VOLTE network according to the present disclosure.
Fig. 2 is a flowchart illustrating another embodiment of the method for implementing supplementary service processing in a VOLTE network according to the present disclosure.
Fig. 3 is a flowchart illustrating a method for implementing supplementary service processing in a VOLTE network according to still another embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of an apparatus for implementing supplementary service processing in a VOLTE network according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of an apparatus for implementing supplementary service processing in a VOLTE network according to still another embodiment of the present disclosure.
Fig. 6 is a schematic structural diagram of an apparatus for implementing supplementary service processing in a VOLTE network according to yet another embodiment of the present disclosure.
Fig. 7 is a schematic structural diagram of an apparatus for implementing supplementary service processing in a VOLTE network according to another embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be described in further detail below with reference to specific embodiments and the accompanying drawings.
Fig. 1 is a flowchart illustrating an embodiment of a method for implementing supplementary service processing in a VOLTE network according to the present disclosure.
In step 110, the scscf (Serving Call Session Control Function) sends a Call signaling request initiated by the terminal to the MMTEL AS, where the Call signaling request carries a service supplementary code. For example, a service supplementary code is dialed on a terminal dialing interface, and the service supplementary code is sent to the MMTEL AS by means of an SIP (Session Initiation Protocol) terminal call signaling. The service supplementary code is, for example, an opcode such as 72, 90, 92, 68, 720, 900, 920, 680, etc.
In step 120, the mmtel AS identifies the service supplementary code in the call signaling request and changes and sets the corresponding supplementary service according to the service supplementary code. For example, the supplementary service code is matched with the corresponding supplementary service, so as to implement the processing of the supplementary service.
In the embodiment, in the VOLTE network, the SCSCF sends a call signaling request initiated by the terminal to the MMTEL AS, the call signaling request carries a service supplement code, the MMTEL AS identifies the service supplement code in the call signaling request and changes and sets the corresponding supplement service according to the service supplement code, and the change and the setting of the supplement service do not depend on the BSF/AP server, so that a disaster tolerance scheme can be provided when the BSF/AP server fails. In addition, the method can inherit the use habit that the original CDMA network user dials the service supplementary code through a dial interface to change and set the supplementary service.
Fig. 2 is a flowchart illustrating another embodiment of the method for implementing supplementary service processing in a VOLTE network according to the present disclosure.
In step 210, after the scscf receives the call signaling request initiated by the terminal, it triggers iFC (initial Filter criterion). For example, the terminal dials the service supplementary code such as 72xxxxxxxxx, 720 and the like through the dial interface, and the SCSCF triggers the iFC after receiving the call signaling request.
In step 220, it is determined whether the service supplementary code carried in the call signaling request is carried, if so, step 230 is executed, otherwise, step 260 is executed.
In step 230, the call signaling request is sent directly to the MMTEL AS.
Currently, when canceling the service cue empty number using the 720, the SCSCF finds the first request message and triggers the request message to the IVPN platform, which considers the 720 to be a short number, and therefore, the empty number tone is released since the 720 does not need to be processed. Therefore, there is also a need to solve how traffic supplemental codes such as 720, 900, 920, 680, etc. bypass the IVPN platform.
The SCSCF may modify the iFC by using a MOD SIFCINF (modify shared ifcf data) command to directly send the call signaling request carrying the service supplementary code to the MMTEL AS. For example, when characters 720, 900, 920, 680, etc. are encountered in the Request-URI in the SIP header, the message bypasses the IVPN platform when the iFC is triggered.
In one embodiment, the iFC may be modified in the HSS-IMS by using a MOD HSIFCINF (modify shared iFC data) command to directly send the call signaling request carrying the service supplementary code to the MMTEL AS.
In step 240, the mmtel AS identifies the bit length of the service supplementary code by using a MOD LDNSET (modify local number first set) command, and if the bit length of the service supplementary code exceeds a threshold, the service supplementary code is not intercepted. The MOD LDNSET command mainly functions to open a "prefix analysis flag according to the number length" and a "number over-length release flag" therein, in order to control the bit length, and when dialing numbers such as 7202587791024, does not cut 7202587791024 into 720.
In step 250, the mmtel AS ADDs a supplementary service operation group by using an ADD nsoperote (ADD new service operation configuration) command, and matches the service supplementary code with the corresponding supplementary service by using an ADD CNACLD (ADD called number analysis) command, thereby realizing the change or setting of the corresponding supplementary service.
The ADD nsaperote command mainly realizes the addition of a new service operation group, for example, regcfrc/cancel unreachable forwarding is unreachable forwarding/cancel unreachable forwarding, regcfr/cancel unresponsive forwarding is unresponsive forwarding/cancel unresponsive forwarding, REGCFB/cancel forwarding is busy forwarding/cancel busy forwarding, REGCFU/cancel forwarding is unconditional forwarding/cancel unconditional forwarding. The ADD nsaperote command may make corresponding xml service data according to the added new service operation group for interaction between the AS and the HSS.
The ADD CNACLD command may analyze the supplementary service codes such as 72, 90, 92, 68, 720, 900, 920, 680, etc., to determine the home initial set, and select a new service operation according to the service attribute.
In step 260, the call signaling request is sent to a Service Control Point (SCP) AS, so that the SCP AS forwards the call signaling request to the MMTEL AS.
In the embodiment, in the VOLTE network, through the improvement of data and trigger flow, the dialing of a service supplementary code based on a terminal dialing interface can be changed or the supplementary service can be set. Meanwhile, the embodiment can also realize that short-signal bypass IVPN platforms such as 720 and the like realize deactivation service.
Fig. 3 is a flowchart illustrating a method for implementing supplementary service processing in a VOLTE network according to still another embodiment of the present disclosure.
In step 310, the terminal sends an invite message, which may be an SIP message, to a P/SBC (session Border Controller) through a PGW (PDN GateWay, packet data network GateWay). The information in the header field of the Request _ URI is in a format of 72+ call forwarding number.
In step 320, the sbc sends an invite message to the SCSCF. The SCSCF triggers the iFC after receiving the invite message, if the invite message has a service supplement code, the invite message is directly sent to the MMTEL AS, otherwise, the invite message is sent to the SCP AS, namely the IVPN platform, the SCP AS does not process the invite message at all, and the invite message is sent back to the SCSCSCF.
In step 330, after receiving the invite message, the mmtel AS identifies the service supplementary code, and changes or sets the corresponding supplementary service according to the service supplementary code. For example, 72 is analyzed as a new service operation, and the 72+ number dialed by the user is analyzed as corresponding call forwarding operation data.
In step 340, the mmtel AS updates the data to the HSS, sequentially via HDRA (high-level Diameter routing agent), LDRA (low-level Diameter routing agent). The transparent data stored in HSS by the user is modified, the user call is successfully set, and the MRFC (Multimedia Resource Controller) is used for correctly playing the sound for the user.
In the embodiment, the service supplementary codes such AS 72 and the like are brought to the MMTEL-AS in a mode of calling signaling by the SIP terminal, and the MMTEL-AS identifies the service supplementary codes, so that the supplementary service of the user is changed and set, the mobile phone terminal and the network are registered for bidirectional authentication, interaction with networks such AS a third-party server BSF/AP and the like is not needed, and the use habit of a CDMA network user can be inherited.
Fig. 4 is a schematic structural diagram of an apparatus for implementing supplementary service processing in a VOLTE network according to an embodiment of the present disclosure. The apparatus includes an SCSCF 410 and an MMTEL AS 420.
The SCSCF 410 is configured to send a call signaling request initiated by a terminal to a multimedia telephony service application server MMTEL AS, where the call signaling request carries a service supplementary code. For example, a service supplementary code is dialed on a terminal dialing interface, and the service supplementary code is sent to the MMTEL AS by means of an SIP terminal call signaling. The service supplementary code is, for example, an opcode such as 72, 90, 92, 68, 720, 900, 920, 680, etc.
In one embodiment, after receiving a call signaling request initiated by a terminal, an SCSCF triggers an iFC to determine whether the call signaling request is carried by a service supplementary code, and if so, directly sends the call signaling request to an MMTEL AS, otherwise, sends the call signaling request to the SCP AS, so that the SCP AS forwards the call signaling request to the MMTEL AS.
The SCSCF can modify the iFC by utilizing MOD SIFACNF command to realize that the call signaling request carrying the service supplementary code is directly sent to the MMTEL AS. For example, when characters 720, 900, 920, 680, etc. are encountered in the Request-URI in the SIP header, the message bypasses the IVPN platform when the iFC is triggered.
In one embodiment, the ifcf command may be utilized in the HSS-IMS to modify ifcs to implement sending the call signaling request carrying the service supplementary code directly to the MMTEL AS.
The MMTEL AS 420 is configured to identify a service supplementary code in the call signaling request, and change or set a corresponding supplementary service according to the service supplementary code. For example, the supplementary service code is matched with the corresponding supplementary service, so as to implement the processing of the supplementary service.
And the MMTEL AS identifies the bit length of the service supplement code by using the MOD LDNSET command, and if the bit length of the service supplement code exceeds a threshold value, the service supplement code is not subjected to truncation processing. And adding a supplementary service operation group by using an ADD NSOPERATE command, and matching the service supplementary code with the corresponding supplementary service by using an ADD CNACLD command to realize the change or the setting of the corresponding supplementary service.
In the embodiment, in the VOLTE network, the SCSCF sends a call signaling request initiated by the terminal to the MMTEL AS, the call signaling request carries a service supplement code, the MMTEL AS identifies the service supplement code in the call signaling request and changes and sets the corresponding supplement service according to the service supplement code, and the change and the setting of the supplement service do not depend on the BSF/AP server, so that a disaster tolerance scheme can be provided when the BSF/AP server fails. In addition, the terminal Ut interface specification does not need to be customized, any terminal with a dialing interface can realize the function, the use habit of a CDMA network user can be inherited, and the practicability is improved.
In a specific embodiment of the present disclosure, when the SCSCF interacts with the mmscl AS, the SCSCF may pass through a plurality of network elements, AS shown in fig. 5, the terminal 510 sends an invite message to the P/SBC 530 through the PGW 520, the SBC 530 sends the invite message to the SCSCF 540, the SCSCF 540 sends the invite message to the MMTEL AS 550, and after the invite message is received by the MMTEL AS 550, the service supplementary code is identified, the corresponding supplementary service is changed or set according to the service supplementary code, and the data is updated to the HSS 580 through the HDRA 560 and the LDRA 570, where the LDRA 570 may also interact with a PCRF (Policy and Charging Rules Function) 590.
Because the EPC side is equivalent to the bearer of the VOLTE, the message on the EPC side is ignored now, the EPC is equivalent to a default bearer for the APN of the IMS established for the VOLTE, and the subsequent SIP message of the VOLTE is sent through the default bearer established by the EPC, and the signaling of the VOLTE is transparent and unknown content for the EPC side.
Fig. 6 is a schematic structural diagram of another embodiment of the apparatus for implementing supplementary service processing in a VOLTE network according to the present disclosure. The device includes: a memory 610 and a processor 620. Wherein: the memory 610 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory 610 is used to store instructions in the embodiments corresponding to fig. 1-3. Coupled to memory 610, processor 620 may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 620 is configured to execute instructions stored in the memory.
In one embodiment, the apparatus 700 may also include a memory 710 and a processor 720, as shown in FIG. 7. Processor 720 is coupled to memory 710 by BUS 730. The apparatus 700 may be further connected to an external storage device 750 through a storage interface 740 for accessing external data, and may be further connected to a network or another computer system (not shown) through a network interface 760, which will not be described in detail herein.
In the embodiment, the data instruction is stored in the memory, and the instruction is processed by the processor, so that the supplementary service can be still processed when the BSF/AP server fails.
In another embodiment, a computer-readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the method in the corresponding embodiments of fig. 1-3. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications can be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (6)

1. A method for realizing supplementary service processing in a VOLTE network comprises the following steps:
a service call session control function SCFCF modifies an iFC by utilizing a command of modifying shared initial filter rule iFC data MOD SIFCNF or a command of modifying shared iFC data MOD HSIFCINF in a home subscriber server HSS to directly send a call signaling request initiated by a terminal to a multimedia telephone service application server MMTEL AS, wherein the call signaling request carries a service supplement code;
the MMTEL AS identifies the bit length of the service supplementary code by using a command of modifying a local number first set MOD LDNSET, and if the bit length of the service supplementary code exceeds a threshold value, the service supplementary code is not intercepted;
and adding a supplementary service operation group by adding a new service operation configuration ADD NSOPERATE command, and matching the service supplementary code with the corresponding supplementary service by adding a called number analysis ADD CNACLD command to realize the change and/or the setting of the corresponding supplementary service.
2. The method of claim 1, wherein,
the SCSCF triggers an initial filtering rule iFC after receiving a call signaling request initiated by a terminal, judges whether the call signaling request is carried by a service supplementary code, if so, directly sends the call signaling request to the MMTEL AS, otherwise, sends the call signaling request to a service control point application server (SCP AS) so that the SCP AS forwards the call signaling request to the MMTEL AS.
3. An apparatus for implementing supplementary service processing in a VOLTE network, comprising:
a service call session control function SCFCF, configured to modify the shared initial filter rule iFC data MOD SIFCNF command by using a modification shared initial filter rule iFC data MOD HSIFCINF command in a home subscriber server HSS, and modify the iFC to directly send a call signaling request initiated by a terminal to a multimedia telephony service application server MMTEL AS, where the call signaling request carries a service supplementary code;
and the MMTEL AS is used for identifying the bit length of the service supplementary code by using a command of modifying a local number first set MOD LDNSET, if the bit length of the service supplementary code exceeds a threshold value, not cutting off the service supplementary code, adding a supplementary service operation group by using an ADD NSOPERate command of adding a new service operation configuration, and matching the service supplementary code with the corresponding supplementary service by using an ADD CNACLD command of adding a called number analysis ADD CNACLD to realize the change and/or the setting of the corresponding supplementary service.
4. The apparatus of claim 3, wherein,
the SCSCF is used for triggering an initial filtering rule iFC after receiving a call signaling request initiated by a terminal, judging whether the call signaling request carries a service supplementary code, if so, directly sending the call signaling request to the MMTEL AS, otherwise, sending the call signaling request to a service control point application server SCP AS so that the SCP AS forwards the call signaling request to the MMTEL AS.
5. An apparatus for implementing supplementary service processing in a VOLTE network, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the method of implementing supplementary service processing under a VOLTE network of claim 1 or 2 based on the instructions stored in the memory.
6. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method of implementing supplementary service handling in a VOLTE network of claim 1 or 2.
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