CN112020127B - Method, device and system for calling between terminals - Google Patents
Method, device and system for calling between terminals Download PDFInfo
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- CN112020127B CN112020127B CN202011129271.9A CN202011129271A CN112020127B CN 112020127 B CN112020127 B CN 112020127B CN 202011129271 A CN202011129271 A CN 202011129271A CN 112020127 B CN112020127 B CN 112020127B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a method for calling between terminals, which is applied to a communication service platform and a soft switch platform and comprises the following steps: s1, dialing a number of an intelligent electronic terminal on a mobile terminal, initiating a call request to a soft switch platform, and calling the number; s2, the soft switch platform responds to the mobile terminal calling request; and S3, if the number is online and suitable for conversation, the intelligent electronic terminal answers the call, and the mobile terminal and the intelligent electronic terminal realize IP conversation, wherein when the intelligent electronic terminal is not in conversation, the intelligent electronic terminal is only connected with the communication service platform and is not connected with the soft switch platform. The invention also discloses a device and a system for calling between the terminals. The method, the device and the system for calling between the terminals can reduce the power consumption of the communication terminal.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a system for calling between terminals.
Background
In the prior art, all intelligent electronic terminals supporting IP Voice and video calls are based on VOIP technology (Voice over Internet Protocol), which is a Voice call technology, and achieve Voice calls and multimedia conferences via Internet Protocol (IP), that is, communicate via the Internet, and other informal names include IP phone (IP telephony), Internet phone (Internet telephony), broadband phone (broadband phone), and broadband phone service (broadband phone service).
The intelligent electronic terminal basically communicates with the 4G service platform, and meanwhile, needs to communicate with a soft switch platform (the soft switch platform may be a data center of the airy cloud) for communication.
At present, the consumption of intelligent electronic terminal is higher, still need to connect two platforms and carry out the message interaction, and the consumption further increases, and intelligent electronic terminal needs to charge every day, and people discover, to the conversation business, daily use frequency is not very high, then does not need to connect the soft switch platform for a long time and increases the unnecessary consumption.
Disclosure of Invention
In order to solve the problem of reducing the power consumption of the intelligent electronic terminal, the invention can provide a method, a device and a system for calling between terminals.
The technical scheme of the invention is realized as follows:
the invention discloses a method for calling between terminals, which is applied to a communication service platform and a soft switch platform and comprises the following steps:
s1, dialing the number of the intelligent electronic terminal on the mobile terminal, initiating a call request to the soft switch platform, and calling the number;
s2, the soft switch platform answers the mobile terminal calling request;
s3, if the number is on-line and suitable for conversation, the intelligent electronic terminal answers the call, the mobile terminal and the intelligent electronic terminal realize IP conversation,
when the intelligent electronic terminal is not in call, the intelligent electronic terminal is only connected with the communication service platform and is not connected with the soft switch platform.
Further, the step S2 specifically includes the following steps:
s21, the soft switch platform judges whether the called number is on-line by SIP, if yes, the step S3 is entered, if no, the step S23 is entered;
s3, the mobile terminal carries out outbound call according to a normal call flow,
and S23, the mobile terminal initiates a call request to the communication service platform to request the communication service platform to inform the called intelligent electronic terminal to connect the soft switch platform.
Further, the step S3 specifically includes the following steps:
s31, if the number is on-line, judging whether the called intelligent electronic terminal allows incoming call, if yes, going to S32, if no, going to S33;
s32, automatically connecting the soft switch platform, initiating SIP registration to the soft switch platform, the soft switch platform informing the SIP online state to the mobile terminal, the mobile terminal initiating an outbound call to the intelligent electronic terminal to realize IP voice or video call,
s33, the call ends.
Further, mobile terminal include the smart mobile phone, intelligent electronic terminal include locator card and location bracelet, the communication service platform include 4G business platform, the soft switch platform include VOIP software switching module, mobile terminal when not conversing, only connect the communication service platform, with the soft switch platform do not connect.
The invention discloses a device for calling between terminals, which is applied to a communication service platform and a soft switch platform and comprises the following units:
the calling unit is used for dialing the number of the intelligent electronic terminal on the mobile terminal, initiating a calling request to the soft switch platform and calling the number;
the response unit is used for the soft switch platform to respond to the call request of the mobile terminal;
a call unit, if the number is on-line and suitable for call, the intelligent electronic terminal answers the call, the mobile terminal and the intelligent electronic terminal realize IP call,
when the intelligent electronic terminal is not in call, the intelligent electronic terminal is only connected with the communication service platform and is not connected with the soft switch platform.
Further, the response unit specifically includes the following units:
the first judging unit is used for judging whether the called number is on-line by the soft switch platform or not by the SIP, and if the called number is on-line by the SIP, the called number enters the call unit;
and the outbound unit is used for initiating a call request to the communication service platform by the mobile terminal if the SIP is not online, and requesting the communication service platform to inform a called intelligent electronic terminal to be connected with the soft switch platform.
Further, the communication unit specifically includes the following units:
a second judging unit, configured to judge whether the called intelligent electronic terminal allows incoming call if the number is online,
the initiating unit is used for automatically connecting the soft switch platform and initiating SIP registration to the soft switch platform if the number is online and incoming call is allowed, the soft switch platform informs the online state of the SIP to the mobile terminal, the mobile terminal initiates an outbound call to the intelligent electronic terminal to realize IP voice or video call,
and an ending unit, which is used for ending the call if the incoming call is not allowed.
Further, mobile terminal include the smart mobile phone, intelligent electronic terminal include locator card and location bracelet, the communication service platform include 4G business platform, the soft switch platform include VOIP software switching module, mobile terminal when not conversing, only connect the communication service platform, with the soft switch platform do not connect.
The invention discloses a system for calling between terminals, which comprises at least one mobile terminal and an intelligent electronic terminal, as well as a communication service platform and a soft switch platform which are wirelessly interacted with the mobile terminal and the intelligent electronic terminal, wherein the system is provided with the device.
Furthermore, the system is provided with a controller which is connected with the mobile terminal, the intelligent electronic terminal, the communication service platform and the soft switch platform, and the device is arranged on the controller.
The method, the device and the system for calling between terminals have the following beneficial technical effects:
the intelligent electronic terminal and the mobile terminal are only connected with the 4G service platform when the intelligent electronic terminal is not in a call, the soft switch platform is not required to be connected, the power consumption of the intelligent electronic terminal is reduced, when a call needs to be dialed back, the initiating terminal is automatically connected with the soft switch platform, meanwhile, a request is initiated to the incoming terminal through the 4G service platform, and the soft switch platform is connected after the incoming terminal receives the request, so that IP voice and video call is realized, unnecessary connection of the soft switch platform is avoided, and performance pressure is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for calling between terminals according to a first embodiment of the present invention;
fig. 2 is a flowchart of a method for calling between terminals according to a second embodiment of the present invention;
fig. 3 is a flowchart of a method for calling between terminals according to a third embodiment of the present invention;
fig. 4 is a functional block diagram of an apparatus for an inter-terminal call according to a first embodiment of the present invention;
FIG. 5 is a functional block diagram of an apparatus for an inter-terminal call according to a second embodiment of the present invention;
fig. 6 is a functional block diagram of an apparatus for an inter-terminal call according to a third embodiment of the present invention;
fig. 7 is a schematic system structure of an inter-terminal call according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a first embodiment of a method for calling between terminals, applied to a communication service platform and a soft switch platform, includes the following steps:
s1, dialing the number of the intelligent electronic terminal on the mobile terminal, initiating a call request to the soft switch platform, and calling the number;
the mobile terminal initiates a call, specifically: selecting an intelligent electronic terminal needing communication input to initiate a call, namely: the mobile terminal initiates a call request to the soft switch platform to call the number of the intelligent electronic terminal.
The mobile terminal has application programs installed in systems such as a mobile phone, a PAD and the like, and can be used for managing data of the positioning terminal and checking information of the positioning terminal.
Intelligent electronic terminal: and the positioning terminal is not limited to positioning cards or positioning bracelets and the like. And 4G wireless communication is supported, and communication with a 4G service platform and a soft switch platform is carried out through a wireless network.
The communication service platform comprises a 4G service platform: the service platform supports the access of a positioning terminal and has a positioning function. In the whole device, the call callback core is used for informing the called party to connect with the dispatching center of the soft switch platform.
A soft switch platform: the VOIP software switching module realizes the IP voice and video call function of the mobile terminal and the intelligent electronic terminal, wherein, the calling state of the calling party is kept, the on-line state of the called party is returned to the calling party periodically, and after the called party is on line, the calling party is confirmed to be capable of calling, thereby realizing the call callback method.
S2, the soft switch platform answers the mobile terminal calling request;
the soft switch platform responds to the mobile terminal calling request, and the response information includes whether a called number is on-line by a Session Initiation Protocol (SIP).
The softswitch module returns the called SIP presence status to the mobile terminal periodically (e.g., every 1 second).
Preferably, the intelligent electronic terminal and the mobile terminal are not connected with the soft switch platform in daily life, so that the performance pressure of the soft switch platform is reduced, the capacity of the soft switch platform is increased, and the cost is reduced.
S3, if the number is on-line and suitable for conversation, the intelligent electronic terminal answers the call, the mobile terminal and the intelligent electronic terminal realize IP conversation,
when the intelligent electronic terminal is not in call, the intelligent electronic terminal is only connected with the communication service platform and is not connected with the soft switch platform.
In daily life, the intelligent electronic terminal is mainly connected with the 4G service platform to ensure main service functions, so that service data reporting and storage such as positioning and the like are realized, and meanwhile, the 4G service platform can send parameters to the terminal.
On the basis of meeting the main service functions of the prior art, the voice and video call function of the IP is expanded, and the terminal is required to communicate with the soft switch platform, so that the voice and video call with the mobile terminal is realized,
in order to reduce the power consumption of the terminal, the terminal is not connected with the soft switch platform during daily operation, and only when a call is initiated, the 4G service platform is combined to realize the communication with the soft switch platform, so that the whole call initiation and call processing are realized.
Referring to fig. 2, the second embodiment of the method, step S2, specifically includes the following steps:
s21, the soft switch platform judges whether the called number is on-line by SIP, if yes, the step S3 is entered, if no, the step S23 is entered;
and S23, the mobile terminal initiates a call request to the communication service platform to request the communication service platform to inform the called intelligent electronic terminal to connect the soft switch platform.
For example: if the called SIP is not on-line, the Mobile terminal initiates a call request to the 4G service platform to inform the positioning terminal to connect the soft switch platform, and the request information is not limited to the terminal IMEI (International Mobile Equipment Identity) and the SIP account number of the Mobile terminal.
After receiving the call request of the mobile terminal, the 4G service platform initiates a call request control instruction to the corresponding IMEI positioning terminal to inform the intelligent electronic terminal to initiate SIP registration with the soft switch.
Referring to fig. 3, the third embodiment of the method, step S3, specifically includes the following steps:
s31, if the number is on-line, judging whether the called intelligent electronic terminal allows incoming call, if yes, going to S32, if no, going to S33;
s32, automatically connecting the soft switch platform, initiating SIP registration to the soft switch platform, the soft switch platform informing the SIP online state to the mobile terminal, the mobile terminal initiating an outbound call to the intelligent electronic terminal to realize IP voice or video call,
s33, the call ends.
Specifically, the method comprises the following steps:
if the called intelligent electronic terminal is idle, the module responds to the call request control response of the 4G service platform and returns to the current state of the called terminal: the incoming call is allowed or prohibited, and the case of prohibiting the incoming call is not limited to the case that the called party is on the call, the case that the called party is in the sleep time period or the disturbance-free time period, etc.
And the 4G service platform responds to the call request control instruction of the mobile terminal and returns whether the called party allows incoming call. If the called party prohibits incoming calls, the call ends.
If the called party allows incoming calls, a notification that the called SIP is online is received.
And the intelligent electronic terminal allows incoming calls, automatically connects the soft switch platform and initiates SIP registration to the soft switch platform.
The intelligent electronic terminal initiates an SIP registration request to the soft switch platform.
And the soft switch platform receives the called SIP registration and immediately responds to the SIP registration.
The soft switch platform informs the called SIP online state to the mobile terminal.
The mobile terminal initiates an outbound call to the SIP online called party, and the subsequent call is a standard SIP call and a conversation flow: the mobile terminal initiates a call to the soft switch platform to call a called intelligent electronic terminal, the soft switch platform initiates a call to the intelligent electronic terminal, the intelligent electronic terminal answers the call to realize an IP voice or video call request, the intelligent electronic terminal answers the call and then sends a call answering message to the soft switch platform, the soft switch platform sends a called call answering message to the mobile terminal, the mobile terminal enters a call state and can be in call with the called intelligent electronic terminal, the intelligent electronic terminal also enters a call mode after the mobile terminal answers the call to realize IP voice and video call, the intelligent electronic terminal finishes the call through hanging up, and after the intelligent electronic terminal finishes the call notification, the intelligent electronic terminal reports a call ticket to the service platform to store the ticket, and the whole call flow is finished.
An apparatus for implementing the above method is described below, and a part not described in the apparatus is referred to the description of the above method.
Referring to fig. 4, a device 1 for calling between terminals in a first embodiment of the device, applied to a communication service platform and a soft switch platform, includes the following units:
a calling unit 10, configured to dial a number of an intelligent electronic terminal on a mobile terminal, initiate a call request to a soft switch platform, and call the number;
the answering unit 20 is used for the soft switch platform to answer the call request of the mobile terminal;
a communication unit 30, if the number is online and suitable for communication, the intelligent electronic terminal answers the call, the mobile terminal and the intelligent electronic terminal realize IP communication,
when the intelligent electronic terminal is not in call, the intelligent electronic terminal is only connected with the communication service platform and is not connected with the soft switch platform.
For example, the intelligent electronic terminal is only connected with the 4G service platform, when a call session needs to be initiated, the 4G service platform informs the called party to connect the soft switch platform, and after the called party is on line, a call flow is established and a session function is realized. The intelligent electronic terminal is guaranteed to support the basis of IP voice and video call functions, two platforms do not need to be connected, and the power consumption of the intelligent electronic terminal is not increased.
Referring to fig. 5, a second embodiment of the apparatus, the response unit 20 specifically includes the following units:
a first judging unit 40, configured to judge, by the soft switch platform, whether an SIP is online for the called number, and if so, enter the call unit 30;
and the outbound unit 60 is configured to, if the SIP is not online, initiate a call request to the communication service platform by the mobile terminal, and request the communication service platform to notify the called intelligent electronic terminal to connect to the soft switch platform.
Referring to fig. 6, a third embodiment of the apparatus, the communication unit 30 specifically includes the following units:
a second judging unit 70, configured to judge whether the called intelligent electronic terminal allows incoming call if the number is online,
an initiating unit 80, configured to automatically connect to the soft switch platform and initiate SIP registration to the soft switch platform if the number is online and incoming call is allowed, the soft switch platform notifies the SIP online status to the mobile terminal, the mobile terminal initiates an outbound call to the intelligent electronic terminal to implement an IP voice or video call,
and an ending unit 90, configured to end the call if the incoming call is not allowed.
The mobile terminal comprises a smart phone, the smart electronic terminal comprises a positioning card and a positioning bracelet, the communication service platform comprises a 4G service platform, and the soft switch platform comprises a VOIP software switch module.
Referring to fig. 7, a system 100 for inter-terminal call includes at least one mobile terminal 200 and an intelligent electronic terminal 300, a communication service platform 400 and a soft switch platform 500 wirelessly interacting with both the mobile terminal 200 and the intelligent electronic terminal 300, and the system 100 has the apparatus 1.
The system 100 has a controller 600 connected to the mobile terminal 200, the intelligent electronic terminal 300, the communication service platform 400 and the soft switch platform 500, and the apparatus 1 is disposed in the controller 600.
In the system 100, in order to ensure the power consumption of the mobile terminal 200 and the intelligent electronic terminal 300, the mobile terminal 200 and the intelligent electronic terminal 300 are not connected to the soft switch platform 500 during daily operation, and only when a call is initiated, the 4G service platform 400 is combined to realize communication with the soft switch platform 500, so that the whole call initiation and call processing is realized.
The method, the device and the system for calling between terminals have the following beneficial technical effects:
the intelligent electronic terminal and the mobile terminal are only connected with the 4G service platform when the intelligent electronic terminal is not in a call, the soft switch platform is not required to be connected, the power consumption of the intelligent electronic terminal is reduced, when the call is to be called back, the initiating terminal is automatically connected with the soft switch platform, meanwhile, a request is initiated to the incoming terminal through the 4G service platform, and the soft switch platform is connected after the incoming terminal receives the request, so that the IP voice and video call is realized, unnecessary connection of the soft switch platform is avoided, and the performance pressure is reduced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable 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 invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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 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 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 or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (8)
1. A method for calling between terminals is applied to a communication service platform and a soft switch platform, and is characterized by comprising the following steps:
s1, dialing a number of an intelligent electronic terminal on a mobile terminal, initiating a call request to a soft switch platform, and calling the number;
s2, the soft switch platform responds to the mobile terminal calling request;
s3, if the number is on line and suitable for conversation, the intelligent electronic terminal answers the call, the mobile terminal and the intelligent electronic terminal realize IP conversation,
wherein, when the intelligent electronic terminal is not in communication, only the communication service platform is connected, but not the soft switch platform,
the step S2 specifically includes the following steps:
s21, the soft switch platform judges whether the called number is on-line by SIP, if so, the step S3 is carried out, and if not, the step S23 is carried out;
and S23, the mobile terminal initiates a call request to the communication service platform to request the communication service platform to inform the called intelligent electronic terminal to connect the soft switch platform.
2. The method according to claim 1, wherein the step S3 specifically includes the following steps:
s31, if the number is online, judging whether the called intelligent electronic terminal allows incoming calls, if yes, entering a step S32, and if not, entering a step S33;
s32, automatically connecting the soft switch platform, initiating SIP registration to the soft switch platform, informing the mobile terminal of the SIP online state by the soft switch platform, initiating an outbound call to the intelligent electronic terminal by the mobile terminal to realize IP voice or video call,
and S33, ending the call.
3. The method according to claim 1, wherein the mobile terminal comprises a smart phone, the smart electronic terminal comprises a locator card and a locator bracelet, the communication service platform comprises a 4G service platform, the soft switch platform comprises a VOIP software switch module, and the mobile terminal is only connected with the communication service platform and is not connected with the soft switch platform when not in a call.
4. A device for calling between terminals is applied to a communication service platform and a soft switch platform, and is characterized by comprising the following units:
the calling unit is used for dialing the number of the intelligent electronic terminal on the mobile terminal, initiating a calling request to the soft switch platform and calling the number;
the response unit is used for the soft switch platform to respond to the call request of the mobile terminal;
a call unit, if the number is on-line and suitable for call, the intelligent electronic terminal answers the call, the mobile terminal and the intelligent electronic terminal realize IP call,
wherein, when the intelligent electronic terminal is not in communication, only the communication service platform is connected, but not the soft switch platform,
the response unit specifically comprises the following units:
the first judging unit is used for judging whether the called number is on-line by the soft switch platform or not by the SIP, and if the called number is on-line by the SIP, the called number enters the call unit;
and the outbound unit is used for initiating a call request to the communication service platform by the mobile terminal if the SIP is not online, and requesting the communication service platform to inform a called intelligent electronic terminal to be connected with the soft switch platform.
5. The device according to claim 4, wherein the call unit specifically comprises the following units:
a second judging unit, configured to judge whether the called intelligent electronic terminal allows incoming call if the number is online,
the initiating unit is used for automatically connecting the soft switch platform and initiating SIP registration to the soft switch platform if the number is online and incoming call is allowed, the soft switch platform informs the online state of the SIP to the mobile terminal, the mobile terminal initiates an outbound call to the intelligent electronic terminal to realize IP voice or video call,
and an ending unit, which is used for ending the call if the incoming call is not allowed.
6. The device according to claim 4, wherein the mobile terminal comprises a smart phone, the smart electronic terminal comprises a positioning card and a positioning bracelet, the communication service platform comprises a 4G service platform, the soft switch platform comprises a VOIP software switch module, and the mobile terminal is only connected with the communication service platform and is not connected with the soft switch platform when not in a call.
7. A system for calling between terminals, comprising at least a mobile terminal and an intelligent electronic terminal, a communication service platform and a soft switch platform wirelessly interacting with both the mobile terminal and the intelligent electronic terminal, characterized in that the system has the apparatus of any one of claims 4 to 6.
8. The system of claim 7, wherein the system comprises a controller connected to the mobile terminal, the intelligent electronic terminal, the communication service platform, and the soft switch platform, and the device is disposed in the controller.
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