CN102638452B - Calling method and device based on VoIP (voice over internet phone) - Google Patents
Calling method and device based on VoIP (voice over internet phone) Download PDFInfo
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- CN102638452B CN102638452B CN201210066320.8A CN201210066320A CN102638452B CN 102638452 B CN102638452 B CN 102638452B CN 201210066320 A CN201210066320 A CN 201210066320A CN 102638452 B CN102638452 B CN 102638452B
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Abstract
The invention discloses a calling method and device based on a VoIP (voice over internet phone). The calling method comprises the following steps that: a voice server receives a first calling request message from a calling device, wherein the first calling request message carries a number of a called device; the voice server transmits the first calling request message to a spare called device corresponding to the number and a parallel device; after receiving a calling response of the called device, the voice server establishes calling between the calling device and the called device; and after receiving a calling response of the parallel device, the voice server establishes calling between the calling device and the parallel device. Through the calling method and device based on the VoIP, disclosed by the invention, a telephone number resource can be effectively saved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for calling based on a VoIP (Voice over IP ) network.
Background
In a conventional PSTN (Public Switched Telephone Network), there is often such an application: in order to share one number (share one telephone line) by a plurality of people, a junction box is utilized to connect a plurality of analog telephones together; when each analog phone is idle, any analog phone can initiate a call; when a telephone calls in, all the analog telephones ring together, and after any analog telephone is connected, the communication can be started; if the called party to be found by the calling party is not the self-calling party, the real called party needs to be orally informed to answer the call, and the analog phone of the called party is hung up after the real called party is connected with the call.
In order to effectively save number resources, the above-mentioned method needs to connect a plurality of analog phones on one physical line, the method can only be used on the analog phones, and only one analog phone can carry out conversation at the same time; and because of the influence of factors such as the power supply of the physical line, the number of the analog telephones connected on one physical line cannot be too large, and generally cannot exceed 3.
Disclosure of Invention
The embodiment of the invention provides a calling method and equipment based on a VoIP (Voice over Internet protocol) network, which are used for enabling a plurality of telephones with the same number to carry out conversation at the same time when in parallel connection.
In order to achieve the above object, an embodiment of the present invention provides a calling method based on a VoIP network, which is applied to a system including a calling device, a voice server, a called device and at least one parallel device, where the called device and the parallel device have the same number, and when the calling device calls the called device, the method includes:
the voice server receives a first call request message from the calling equipment, wherein the number is carried in the first call request message; sending the first call request message to idle called equipment and parallel connection equipment corresponding to the number;
after receiving a call response, the voice server establishes a call between the calling equipment and the equipment sending the call response, and notifies the number of the calling equipment and identification information corresponding to the call between the calling equipment and the equipment sending the call response to the doubling equipment and the called equipment;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, the voice server receives a second call request message from the called device, the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device, the voice server releases the call between the calling device and the parallel device corresponding to the identification information, the second call request message is sent to the calling device by using the number of the calling device, and the call is established between the calling device and the called device.
The voice server sends the first call request message to the idle called device and the parallel connection device corresponding to the number, and the method further includes: the voice server receives a first registration message from the called device and a second registration message from the doubling device, wherein the first registration message carries the number of the called device and the information that the called device starts the doubling service, and the second registration message carries the number of the doubling device and the information that the doubling device starts the doubling service, and records that the called device and the doubling device start the doubling service;
the sending, by the voice server, the first call request message to the idle called device and the parallel line device corresponding to the number specifically includes: and when the called device and the parallel line device corresponding to the number start the parallel line service and the number corresponds to the idle called device and the parallel line device, the voice server sends the first call request message to the idle called device and the parallel line device corresponding to the number.
The voice server sends the first call request message to the idle called device and the parallel connection device corresponding to the number, and then the method further comprises the following steps: the called device sends a call response to the voice server after receiving a first call request message from the voice server; and/or after receiving the first call request message from the voice server, the doubling device sends a call response to the voice server.
The process of sending the second call request message to the voice server by the called device specifically includes:
when the called device is a device with information display and processing capabilities, the called device displays the number of the calling device and identification information corresponding to the call between the calling device and the parallel device, and when the called device determines that the called device needs to establish the call with the calling device through the displayed information, the called device sends the second call request message to the voice server; or,
when the called device is not a device with information display and processing capabilities, the called device plays different dial tones or prompt tones to prompt a user to operate and send the second call request message, and when receiving corresponding instruction information for establishing a call between the called device and the calling device, the called device sends the second call request message to the voice server.
The embodiment of the invention provides a calling method based on a VoIP network, which is applied to a system comprising calling equipment, a voice server, called equipment and at least one parallel line equipment, wherein the called equipment and the parallel line equipment have the same number, and when the calling equipment calls the called equipment, the method comprises the following steps:
the voice server receives a first call request message from the calling equipment, wherein the number is carried in the first call request message; sending the first call request message to idle called equipment and parallel connection equipment corresponding to the number;
after receiving a call response, the voice server establishes a call between the calling equipment and the equipment sending the call response, and notifies the called equipment and other parallel equipment of the number of the calling equipment and identification information corresponding to the call between the calling equipment and the equipment sending the call response;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, the voice server receives a second call request message from the called device, the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device, the voice server releases the call between the calling device and the parallel device corresponding to the identification information, the second call request message is sent to the calling device by using the number of the calling device, and the call is established between the calling device and the called device.
The embodiment of the invention provides a voice server, which is applied to a system comprising calling equipment, a voice server, called equipment and at least one parallel line equipment, wherein the called equipment and the parallel line equipment have the same number, and when the calling equipment calls the called equipment, the voice server comprises:
a transceiver module, configured to receive a first call request message from the calling device, where the first call request message carries the number, and send the first call request message to an idle called device and a parallel device corresponding to the number;
receiving a call response from a called device or a parallel device, and notifying the number of the calling device and identification information corresponding to a call between the calling device and a device sending the call response to the parallel device and the called device;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, receiving a second call request message from the called device, wherein the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device;
after receiving the second call request message, releasing the call between the calling device and the parallel line device corresponding to the identification information carried in the second call request message, and sending the second call request message to the calling device by using the number of the calling device;
the establishing module is used for establishing a call between the calling equipment and the equipment for sending the call response after receiving the call response;
and after the second call request message is sent to the calling equipment by using the number of the calling equipment, establishing a call between the calling equipment and the called equipment.
The device further comprises a recording module:
the transceiver module is further configured to receive a first registration message from the called device and a second registration message from the parallel device, where the first registration message carries a number of the called device and information that the called device enables a parallel service, and the second registration message carries a number of the parallel device and information that the parallel device enables a parallel service;
when the called device and the parallel line device corresponding to the number start the parallel line service and the number corresponds to an idle called device and an idle parallel line device, sending the first call request message to the idle called device and the idle parallel line device corresponding to the number;
the recording module is configured to record that the called device and the parallel device enable a parallel service after receiving the first registration message and the second registration message.
The embodiment of the invention provides a voice server, which is applied to a system comprising calling equipment, a voice server, called equipment and at least one parallel line equipment, wherein the called equipment and the parallel line equipment have the same number, and when the calling equipment calls the called equipment, the voice server comprises:
a transceiver module, configured to receive a first call request message from the calling device, where the first call request message carries the number, and send the first call request message to an idle called device and a parallel device corresponding to the number;
receiving a call response from a called device or a parallel line device, and notifying the number of the calling device and identification information corresponding to a call between the calling device and the device sending the call response to the called device and other parallel line devices;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, receiving a second call request message from the called device, wherein the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device;
after receiving the second call request message, releasing the call between the calling device and the parallel line device corresponding to the identification information carried in the second call request message, and sending the second call request message to the calling device by using the number of the calling device;
the establishing module is used for establishing a call between the calling equipment and the equipment for sending the call response after receiving the call response;
and after the second call request message is sent to the calling equipment by using the number of the calling equipment, establishing a call between the calling equipment and the called equipment.
The embodiment of the invention provides a called device, which is applied to a system comprising a calling device, a voice server, a called device and at least one parallel device, wherein the called device and the parallel device have the same number, and when the calling device calls the called device, the called device comprises:
a receiving module, configured to receive a first call request message from the voice server, where the first call request message carries the number;
when the voice server establishes a call between the calling equipment and the parallel line equipment, receiving the number of the calling equipment and identification information corresponding to the call between the calling equipment and the parallel line equipment, wherein the number of the calling equipment is notified by the voice server;
a sending module, configured to send a call response to the voice server after receiving a first call request message, where the voice server establishes a call between the calling device and the called device;
after receiving the number of the calling device and identification information corresponding to the call between the calling device and the parallel line device, if the called device needs to establish a call with the calling device, sending a second call request message to the voice server, wherein the second call request message carries the number of the calling device and the identification information corresponding to the call between the calling device and the parallel line device;
and the voice server releases the call between the calling equipment and the parallel line equipment corresponding to the identification information corresponding to the call between the calling equipment and the parallel line equipment, and establishes the call between the calling equipment and the called equipment by using the number of the calling equipment.
The sending module is further configured to send a registration message to the voice server, where the registration message carries the number of the called device and information that the called device enables the parallel service, and the voice server records that the called device enables the parallel service.
The sending module is specifically configured to, when the called device is a device with information display and processing capabilities, display, on the called device, a number of the calling device and identification information corresponding to a call between the calling device and the parallel device, and when it is determined that the called device needs to establish a call with the calling device through the displayed information on the called device, send the second call request message to the voice server; or,
when the called device is not a device with information display and processing capability, the called device prompts the user to operate and send the second call request message to the voice server by playing different dial tones or prompt tones, and when receiving corresponding instruction information for establishing a call between the called device and the calling device, the called device sends the second call request message to the voice server.
Compared with the prior art, the embodiment of the invention at least has the following advantages:
in the embodiment of the invention, the parallel service can be realized in the VoIP network, and the telephone number resource is effectively saved; when a plurality of telephones share one number, the plurality of telephones are not influenced mutually and can be used simultaneously; and the number of phones that are wired in parallel is not limited.
Drawings
FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention;
fig. 2 is a flowchart of a calling method based on a VoIP network provided in the application scenario shown in fig. 1 according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a voice server according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a called device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a calling method based on a VoIP network, which is applied to a system comprising calling equipment, a voice server, called equipment and at least one parallel device, wherein the called equipment and the parallel device have the same number; the calling device, the called device, the combining device and the like can be telephones with information display and processing capabilities (such as IP telephones) or telephones without the information display and processing capabilities (such as analog telephones, and the analog telephones and the voice gateway can jointly realize the information display and processing capabilities).
In the embodiment of the invention, for a plurality of telephones with the same number, the plurality of telephones with the same number can be communicated at the same time in a parallel mode; the parallel line is a line logically, all parallel calls (as called incoming calls) on the line are known by all users, and the users can switch and answer the call at any time before the call is not hung up; the parallel line in the invention is not the same line physically, firstly, a plurality of parallel calls can exist simultaneously, secondly, the user can independently initiate the call without influencing each other.
It should be noted that the called device and the doubling device are logical concepts, the called device and the doubling device are opposite, and a plurality of telephones with the same number can be called devices and doubling devices; for example, phone a and phone B have the same number and implement calling in a parallel mode, and when the calling device needs to call phone a, phone a is called device and phone B is parallel device; when the calling device needs to call the telephone B, the telephone B is the called device, and the telephone A is the parallel line device.
With reference to fig. 1, which is a schematic view of an application scenario of an embodiment of the present invention, it is assumed that IP phone A, IP, phone B, IP, phone C, IP, and phone D have the same number (number 6000), and a parallel service is enabled; IP phone X (8000) needs to call IP phone B (by dialing number 6000), then the calling device is IP phone X, the called device is IP phone B, and IP phone A, IP phone C, IP phone D is the parallel device corresponding to IP phone B.
Based on the above application scenario, in the process of calling the called device by the calling device, as shown in fig. 2, the calling method based on the VoIP network at least includes the following steps:
step 1, registration process of IP telephone.
The calling equipment, the called equipment and the doubling equipment all need to be registered on the voice server; in the registration process of the calling equipment, the calling equipment sends a registration message to a voice server, wherein the registration message carries the number of the calling equipment so as to be registered on the voice server; in the registration process of the called device, the called device sends a registration message to the voice server, wherein the registration message carries the number of the called device so as to be registered on the voice server; in the registration process of the doubling device, the doubling device sends a registration message to the voice server, wherein the registration message carries the number of the doubling device so as to register the doubling device on the voice server.
In addition, in the registration message sent by the called device to the voice server, information that the called device enables the parallel service is also required to be carried; in the registration message sent by the doubling equipment to the voice server, the information that the doubling equipment starts the doubling service is also required to be carried; after receiving the registration message from the called device and the registration message from the combining device, the voice server records that the combining service is enabled by the called device and the combining device, so as to execute the combining service on the called device and the combining device in the subsequent process.
As shown in fig. 2, in the application scenario, taking SIP (Session Initiation Protocol) as an example, the process includes the following steps:
step 11-step 13, IP phone A, IP phone B, IP phone C, IP phone D, IP phone X, etc. sends a REGISTER message to the voice server to REGISTER on the voice server.
In the embodiment of the invention, on the basis of the current REGISTER message of the SIP, the REGISTER message sent to the voice server by the IP phone A, IP, the phone B, IP, the phone D C, IP and the like needs to carry the information for enabling the parallel connection service. As shown below, an example of a REGISTER message carrying the parallel service enabled information is shown.
REGISTER sip:192.168.188.98SIP/2.0
v：SIP/2.0/UDP 192.168.35.6：5060
t：<sip:6000192.168.188.98>
f：<sip:6000192.168.188.98>
i：9c739898-20c7-01d2-2d14-00eobb41b2a6
CSeq：133 REGISTER
Max-Forwards：70
m：<sip:6000192.168.35.6:5060>；dt＝1
Expires：3600
User-Agent：SIP-Phone/V 1.0
X-SupInfo：multiUser＝yes
Step 14-step 17, IP phone A, IP phone B, IP phone C, IP phone D, etc. notifies the voice server of its own idle state information (i.e., whether it is idle, such as on-line state, off-hook state, call state, etc.) through a NOTIFY message.
Specifically, after the registration process of each IP phone is finished, the voice server needs to send a SUBSCRIBE (status SUBSCRIBE) message to IP phone A, IP, phone B, IP, phone C, IP, phone D, etc., respectively, to inquire about the idle status of each IP phone; after that, the IP phone A, IP phone B, IP phone C, IP phone D or the like notifies the voice server of its own idle state information by a NOTIFY message.
In addition, in the subsequent processing, if the idle state information of the IP phone changes, the IP phone also needs to actively notify the voice server of its own idle state information.
And step 2, establishing the call.
In the process of calling the called device by the calling device, the calling device sends a calling request message to the voice server, wherein the calling request message carries the number of the called device; after receiving the call request message from the calling device, the voice server needs to send the call request message to the idle called device and the parallel device corresponding to the number, because the number of the called device corresponds to multiple devices (i.e., one called device and at least one parallel device).
It should be noted that, after receiving the call request message, the called device and the parallel line device will respond to the call response after off-hook; and the voice server receives only one call response; based on this, then:
in case one, when only the called device is idle, the voice server needs to send the call request message to the called device, the called device sends a call response to the voice server after receiving the call request message from the voice server, and the voice server establishes a call between the calling device and the called device after receiving the call response from the called device.
And in the second case, when only the doubling device is idle, the voice server needs to send the call request message to the doubling device, the doubling device sends a call response to the voice server after receiving the call request message from the voice server, and the voice server establishes a call between the calling device and the doubling device after receiving the call response from the doubling device.
In case three, when both the called device and the parallel line device are idle, the voice server needs to send the call request message to the called device and the parallel line device; the called device sends a call response to the voice server after receiving the call request message from the voice server; and after receiving the call request message from the voice server, the doubling device sends a call response to the voice server.
Furthermore, the voice server only receives one call response; therefore, the voice server only receives the call response from the called equipment or the parallel line equipment; when the voice server receives a call response from the called device, a call is established between the calling device and the called device, and the call sent to the parallel device is released; when the voice server receives the call response from the doubling equipment, the call is established between the calling equipment and the doubling equipment, and the call sent to the called equipment is released.
For the above situation, after the voice server establishes a call between the calling device and a parallel device, it needs to notify the number of the calling device and the identification information corresponding to the call between the calling device and the parallel device to the called device and other parallel devices, or to the called device and all parallel devices; after the voice server establishes a call between the calling device and the called device, the voice server needs to notify the number of the calling device and identification information corresponding to the call between the calling device and the called device to the called device and all the parallel devices, or to all the parallel devices; the detailed process will be explained in the following process.
In the invention, after receiving a call request message from a calling device, a voice server also needs to judge whether a device corresponding to the number of a called device carried in the call request message starts a parallel connection service, and when the called device and the parallel connection device corresponding to the number start the parallel connection service and the number corresponds to an idle called device and an idle parallel connection device, the voice server sends the call request message to the idle called device and the idle parallel connection device corresponding to the number.
As shown in fig. 2, if SIP is taken as an example in the application scenario, the process includes the following steps:
in step 21, when IP phone X (number 8000) needs to call IP phone B, IP phone X sends a call INVITE message to the voice server, which carries the number 6000 of the called device.
Step 22-step 23, after receiving the call INVITE message, the voice server determines whether the called device corresponding to the number 6000 enables the parallel connection service, and if the called device enables the parallel connection service and the number 6000 corresponds to idle called devices and parallel connection devices, the voice server needs to send the call INVITE message to all idle called devices and parallel connection devices.
In this application scenario, taking the case that IP phone A, IP, phone B, IP, phone C, IP, and phone D are all idle currently, the voice server needs to send call INVITE messages to IP phone A, IP, phone B, IP, phone C, IP, and phone D, respectively.
Step 24-step 26, IP phone A, IP phone B, IP phone C, IP phone D, etc. rings and sends a ring response (18x, i.e., ring information) to the voice server; the voice server, upon receiving the first ring response (18X), sends the ring response (18X) to the calling IP phone X.
Step 27-step 29, for IP phone A, IP phone B, IP phone C, IP phone D, etc., any IP phone may be off-hook by the user, for the off-hook IP phone, send an off-hook 200OK message (call response) to the voice server; assuming that the voice server receives the 200OK message of the IP phone a, the voice server transmits a CANCEL message to stop ringing (i.e., calling) to the IP phone B, IP phone C, IP phone D, etc. which is not off hook, and transmits a 200OK message corresponding to the IP phone a to the IP phone X of the caller; to this end, the voice server successfully establishes a call between IP phone X and IP phone a. It should be noted that when there are multiple IP phones that are off-hook by the user, the voice server receives only the 200OK message of one IP phone at a time, and needs to release the calls of the other IP phones.
Through step 2 shown in the flow of fig. 2, sometimes the calling device may establish a call with the parallel line device, and further, the calling device finally needs to establish a call with the called device, so that the method may further include:
and 3, after the calling equipment and the doubling equipment establish a call, establishing the call between the calling equipment and the called equipment by the voice server.
After the voice server establishes a call between the calling device and the doubling device, the voice server informs the number of the calling device and identification information corresponding to the call between the calling device and the doubling device to the called device and other doubling devices, or informs the called device and all the doubling devices; the identification information may be a parallel connection serial number of the current parallel connection service, where the parallel connection serial number is used to uniquely identify a call between a calling device and the parallel connection device.
The called device receives the number of the calling device and the identification information corresponding to the call between the calling device and the parallel connection device, which are notified by the voice server; if the called device is an idle device, when the called device needs to establish a call with the calling device, the called device directly sends a call request message to the voice server, wherein the call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel connection device; if the called device is not an idle device, when the called device needs to establish a call with the calling device, the called device needs to hang up the current call first, and then sends a call request message to the voice server, wherein the call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel line device.
After receiving a call request message from a called device, a voice server releases a call between the calling device and a parallel line device corresponding to identification information corresponding to the call between the calling device and the parallel line device by using the number of the calling device and the identification information corresponding to the call between the calling device and the parallel line device, which are carried in the call request message, sends the call request message to the calling device by using the number of the calling device, and establishes the call between the calling device and the called device.
In the present invention, the sending of the call request message to the voice server by the called device specifically comprises: when the called device is a device (such as an IP telephone) with information display and processing capacity, the called device displays the number of the calling device and identification information corresponding to the call between the calling device and the parallel device, and when the called device determines that the called device needs to establish a call with the calling device through the displayed information, the called device needs to send a call request message to a voice server; when the called device is not a device with information display and processing capabilities (such as an analog phone), the called device plays different dial tones or prompt tones to prompt the user to operate to send a call request message, and when receiving corresponding instruction information for establishing a call between the called device and the calling device, the called device sends the call request message to a voice server.
As shown in fig. 2, taking SIP as an example in the application scenario, if the calling device and the parallel line device establish a call and the calling device finally needs to establish a call with the called device, the process includes the following steps:
step 31, after the call between IP phone X and IP phone a is established, the voice server sends the current parallel information to IP phone A, IP, phone B, IP, phone C, IP, phone D via INFO (notification) message; the doubling information may include, but is not limited to, a doubling serial number and a calling device number, and the doubling serial number is used for uniquely identifying a call between the calling device and the doubling device; in the application scenario, the number of the calling device is 8000 of an IP telephone X, and the parallel serial number is used for uniquely identifying the call between the IP telephone X and an IP telephone A; as shown below, an example of an INFO message carrying a parallel serial number and a calling device number.
INFO sip:6000192.168.188.98：5060 SIP/2.0
v：SIP/2.0/UDP 192.168.35.6；
branch＝z9hG4bK0009a451-d78a-de11-8567-bedc78eb8a01
f：<sip:8000192.168.28.55；user＝phone>；tag＝8f06954
t：″MU″<sip:6000192.168.188.98；user＝phone>；
tag＝6630c1e8-01d6-0262-162a-00eobb24a2a5
i：6630c1e8-01d6-0262-162b-00eobb24a2a5
cseq：1 INFO
timestamp：1250649627
date：Wed，19 Aug 2009 02:40:27 GMT
Max-Forwards：70
contact：<sip:VoiceServer192.168.28.55>
user-agent：SIP VoiceServer/v 1.0
x-isdntunnelinginfo：621c0991a106020101020103
content-type：application/x-MU
content-length：26
Sn＝1
Mu＝yes
Calling＝8000
Step 32, after receiving the parallel connection information, if the IP phone B needs to establish a call with the IP phone X, the IP phone B sends a FEATURE (request) message for answering the parallel connection call to the voice server, where the FEATURE message carries a parallel connection serial number to be answered by the IP phone B.
Because the telephone actually dialed by the IP telephone X is the IP telephone B, if the IP telephone B is not in an idle state, the telephone can be hung up first and then picked up; if IP telephone B is in idle state, then it can go off-hook directly; after IP phone B is taken off-hook by the user, the user may be prompted as needed to select whether to initiate a new call (at which time a call between IP phone B and another phone needs to be established) or to answer a parallel call (at which time a call between IP phone B and IP phone X needs to be established).
Methods for prompting a user to select to initiate a new call or to answer a parallel call include, but are not limited to: (1) if the IP telephone B has the information display and interactive processing capacity, after the IP telephone B is picked up by a user, the information such as the parallel connection serial number, the calling equipment number and the like is displayed on the IP telephone B while a dial tone is played, and the user can select to initiate a new call or answer the parallel connection call according to the information displayed on the IP telephone B; (2) if the IP telephone B has no information display and interactive processing capability, after the IP telephone B is off-hook by the user, the user needs to be prompted to have a parallel connection call by playing different dial tones or prompting tones, and the user can select to initiate a new call or answer the parallel connection call according to the prompting tones.
If the user selects to initiate a new call, the user can directly dial through the IP telephone B to initiate the new call, and the process is not repeated in the application scene; if the user selects to answer the parallel line call, the IP telephone B initiates a request (FEATURE message) for answering the parallel line call to the voice server, wherein the request carries a parallel line serial number to be answered; as shown below, an example of a call request message carrying a doubling sequence number.
FEATURE sip:192.168.28.55 SIP/2.0
v：SIP/2.0/UDP 192.168.188.98：5060
t：<sip:6000192.168.28.55>
f：<sip:6000192.168.28.55>
i：f739d0f8-01d6-01d2-15b3-00e0bb24a2a5
CSeq：22 FEATURE
Max-Forwards：70
m：<sip:6000192.168.188.98:5060>
User-Agent：SIP-Phone/V1.0
1：0
Feature-Type：＊55＊1
Note that, in the above example, "Feature-Type: "55" in "55" 1 "indicates that a parallel call is answered, and" 1 "is a parallel serial number.
In step 33, the voice server releases the call between IP phone X and IP phone a by sending a BYE (release) message to IP phone a after receiving the parallel call request message of IP phone B.
In step 34, the voice server sends a call Request (REINVITE) message corresponding to IP phone B to calling device IP phone X for the parallel call.
Step 35-step 36, IP phone X answers the call request message of IP phone B with a 200OK message. To this end, the voice server successfully establishes a call between IP phone X and IP phone B.
And 4, processing the call ending process. After the call is over, any party hangs up, then the call is released and the parallel call information is cleared at the same time.
As shown in fig. 2, if SIP is taken as an example in the application scenario, the process includes the following steps:
step 41-step 43, IP phone B releases the call between IP phone B and IP phone X through BYE message, the voice server and each IP phone need to clear the parallel call information, and the voice server sends BYE message to IP phone X to finally release the call between IP phone B and IP phone X.
It should be noted that, in the above application scenario, the specific implementation is described in SIP, and other call-based standards can also be applied to the specific implementation of the present invention; in addition, the parallel call in the above flow can support multiple users to use simultaneously, in order to reduce implementation difficulty and use complexity in practical application, the number of the specific parallel calls can be limited, for example, for multiple parallel users, only one user is allowed to use simultaneously, and when receiving the parallel call, selection is not needed, and as long as there is a call currently, other users can receive the parallel call as long as the other users are off-hook.
In summary, in the embodiments of the present invention, a parallel service can be implemented in a VoIP network, so that telephone number resources are effectively saved; when a plurality of telephones share one number, the plurality of telephones are not influenced mutually and can be used simultaneously; and the number of the paralleled telephones is not limited; when a call is incoming, the currently idle phone rings at the same time, a call is established when any phone is connected, if a called party needs to be switched, the called party only needs to answer the call to connect the phone, the switching is completed according to the prompt, and the switched phone is hung up after the switching is completed.
Based on the same inventive concept as the above method, an embodiment of the present invention further provides a voice server, which is applied to a system including a calling device, the voice server, a called device, and at least one parallel device, where the called device and the parallel device have the same number, and when the calling device calls the called device, as shown in fig. 3, the voice server includes:
a transceiver module 11, configured to receive a first call request message from the calling device, where the first call request message carries the number, and send the first call request message to an idle called device and a parallel device corresponding to the number;
receiving a call response from a called device or a parallel device, and notifying the number of the calling device and identification information corresponding to a call between the calling device and a device sending the call response to the parallel device and the called device;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, receiving a second call request message from the called device, wherein the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device;
after receiving the second call request message, releasing the call between the calling device and the parallel line device corresponding to the identification information carried in the second call request message, and sending the second call request message to the calling device by using the number of the calling device;
the establishing module 12 is configured to, after receiving a call response, establish a call between the calling device and the device that sends the call response;
and after the second call request message is sent to the calling equipment by using the number of the calling equipment, establishing a call between the calling equipment and the called equipment.
The voice server further comprises a recording module 13:
the transceiver module 11 is further configured to receive a first registration message from the called device and a second registration message from the parallel device, where the first registration message carries a number of the called device and information that the called device enables a parallel service, and the second registration message carries a number of the parallel device and information that the parallel device enables a parallel service;
when the called device and the parallel line device corresponding to the number start the parallel line service and the number corresponds to an idle called device and an idle parallel line device, sending the first call request message to the idle called device and the idle parallel line device corresponding to the number;
the recording module 13 is configured to record that the called device and the parallel device enable a parallel service after receiving the first registration message and the second registration message.
The modules of the device can be integrated into a whole or can be separately deployed. The modules can be combined into one module, and can also be further split into a plurality of sub-modules.
Based on the same inventive concept as the above method, an embodiment of the present invention further provides a voice server, which is applied to a system including a calling device, the voice server, a called device, and at least one parallel device, where the called device and the parallel device have the same number, and when the calling device calls the called device, the voice server includes:
a transceiver module, configured to receive a first call request message from the calling device, where the first call request message carries the number, and send the first call request message to an idle called device and a parallel device corresponding to the number;
receiving a call response from a called device or a parallel line device, and notifying the number of the calling device and identification information corresponding to a call between the calling device and the device sending the call response to the called device and other parallel line devices;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, receiving a second call request message from the called device, wherein the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device;
after receiving the second call request message, releasing the call between the calling device and the parallel line device corresponding to the identification information carried in the second call request message, and sending the second call request message to the calling device by using the number of the calling device;
the establishing module is used for establishing a call between the calling equipment and the equipment for sending the call response after receiving the call response;
and after the second call request message is sent to the calling equipment by using the number of the calling equipment, establishing a call between the calling equipment and the called equipment.
Based on the same inventive concept as the above method, an embodiment of the present invention further provides a called device, which is applied to a system including a calling device, a voice server, the called device, and at least one parallel device, where the called device and the parallel device have the same number, and when the calling device calls the called device, as shown in fig. 4, the called device includes:
a receiving module 21, configured to receive a first call request message from the voice server, where the first call request message carries the number;
when the voice server establishes a call between the calling equipment and the parallel line equipment, receiving the number of the calling equipment and identification information corresponding to the call between the calling equipment and the parallel line equipment, wherein the number of the calling equipment is notified by the voice server;
a sending module 22, configured to send a call response to the voice server after receiving the first call request message, where the voice server establishes a call between the calling device and the called device;
after receiving the number of the calling device and identification information corresponding to the call between the calling device and the parallel line device, if the called device needs to establish a call with the calling device, sending a second call request message to the voice server, wherein the second call request message carries the number of the calling device and the identification information corresponding to the call between the calling device and the parallel line device;
and the voice server releases the call between the calling equipment and the parallel line equipment corresponding to the identification information corresponding to the call between the calling equipment and the parallel line equipment, and establishes the call between the calling equipment and the called equipment by using the number of the calling equipment.
The sending module 22 is further configured to send a registration message to the voice server, where the registration message carries the number of the called device and information that the called device enables the parallel service, and the voice server records that the called device enables the parallel service.
The sending module 22 is specifically configured to, when the called device is a device with information display and processing capabilities, display, on the called device, a number of the calling device and identification information corresponding to a call between the calling device and the parallel device, and when it is determined that the called device needs to establish a call with the calling device through the displayed information on the called device, send the second call request message to the voice server; or,
when the called device is not a device with information display and processing capability, the called device prompts the user to operate and send the second call request message to the voice server by playing different dial tones or prompt tones, and when receiving corresponding instruction information for establishing a call between the called device and the calling device, the called device sends the second call request message to the voice server.
The modules of the device can be integrated into a whole or can be separately deployed. The modules can be combined into one module, and can also be further split into a plurality of sub-modules.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by hardware, or by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present invention.
Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred embodiment and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
The above-mentioned serial numbers of the present invention are for description only and do not represent the merits of the embodiments.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (11)
1. A calling method based on VoIP network is applied to a system comprising a calling device, a voice server, a called device and at least one parallel device, wherein the called device and the parallel device have the same number, when the calling device calls the called device, the method comprises the following steps:
the voice server receives a first call request message from the calling equipment, wherein the number is carried in the first call request message; sending the first call request message to idle called equipment and parallel connection equipment corresponding to the number;
after receiving a call response, the voice server establishes a call between the calling device and the device sending the call response, and notifies the number of the calling device and identification information corresponding to the call between the calling device and the device sending the call response to the parallel device and the called device, wherein the voice server only receives one call response;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, the voice server receives a second call request message from the called device, the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device, the voice server releases the call between the calling device and the parallel device corresponding to the identification information, the second call request message is sent to the calling device by using the number of the calling device, and the call is established between the calling device and the called device.
2. The method of claim 1,
the voice server sends the first call request message to the idle called device and the parallel connection device corresponding to the number, and the method further includes: the voice server receives a first registration message from the called device and a second registration message from the doubling device, wherein the first registration message carries the number of the called device and the information that the called device starts the doubling service, and the second registration message carries the number of the doubling device and the information that the doubling device starts the doubling service, and records that the called device and the doubling device start the doubling service;
the sending, by the voice server, the first call request message to the idle called device and the parallel line device corresponding to the number specifically includes: and when the called device and the parallel line device corresponding to the number start the parallel line service and the number corresponds to the idle called device and the parallel line device, the voice server sends the first call request message to the idle called device and the parallel line device corresponding to the number.
3. The method of claim 1,
the voice server sends the first call request message to the idle called device and the parallel connection device corresponding to the number, and then the method further comprises the following steps: the called device sends a call response to the voice server after receiving a first call request message from the voice server; and/or after receiving the first call request message from the voice server, the doubling device sends a call response to the voice server.
4. The method of claim 1, wherein the process of the called device sending the second call request message to the voice server specifically comprises:
when the called device is a device with information display and processing capabilities, the called device displays the number of the calling device and identification information corresponding to the call between the calling device and the parallel device, and when the called device determines that the called device needs to establish the call with the calling device through the displayed information, the called device sends the second call request message to the voice server; or,
when the called device is not a device with information display and processing capabilities, the called device plays different dial tones or prompt tones to prompt a user to operate and send the second call request message, and when receiving corresponding instruction information for establishing a call between the called device and the calling device, the called device sends the second call request message to the voice server.
5. A calling method based on VoIP network is applied to a system comprising a calling device, a voice server, a called device and at least one parallel device, wherein the called device and the parallel device have the same number, when the calling device calls the called device, the method comprises the following steps:
the voice server receives a first call request message from the calling equipment, wherein the number is carried in the first call request message; sending the first call request message to idle called equipment and parallel connection equipment corresponding to the number;
after receiving a call response, the voice server establishes a call between the calling device and the device sending the call response, and notifies the called device and other parallel devices of the number of the calling device and identification information corresponding to the call between the calling device and the device sending the call response, wherein the voice server only receives one call response;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, the voice server receives a second call request message from the called device, the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device, the voice server releases the call between the calling device and the parallel device corresponding to the identification information, the second call request message is sent to the calling device by using the number of the calling device, and the call is established between the calling device and the called device.
6. A voice server, applied to a system including a calling device, a voice server, a called device and at least one parallel device, wherein the called device and the parallel device have the same number, and when the calling device calls the called device, the voice server comprises:
a transceiver module, configured to receive a first call request message from the calling device, where the first call request message carries the number, and send the first call request message to an idle called device and a parallel device corresponding to the number;
receiving a call response from a called device or a parallel device, and notifying the number of the calling device and identification information corresponding to a call between the calling device and a device sending the call response to the parallel device and the called device, wherein the voice server only receives one call response;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, receiving a second call request message from the called device, wherein the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device;
after receiving the second call request message, releasing the call between the calling device and the parallel line device corresponding to the identification information carried in the second call request message, and sending the second call request message to the calling device by using the number of the calling device;
the establishing module is used for establishing a call between the calling equipment and the equipment for sending the call response after receiving the call response;
and after the second call request message is sent to the calling equipment by using the number of the calling equipment, establishing a call between the calling equipment and the called equipment.
7. The voice server of claim 6, further comprising a recording module:
the transceiver module is further configured to receive a first registration message from the called device and a second registration message from the parallel device, where the first registration message carries a number of the called device and information that the called device enables a parallel service, and the second registration message carries a number of the parallel device and information that the parallel device enables a parallel service;
when the called device and the parallel line device corresponding to the number start the parallel line service and the number corresponds to an idle called device and an idle parallel line device, sending the first call request message to the idle called device and the idle parallel line device corresponding to the number;
the recording module is configured to record that the called device and the parallel device enable a parallel service after receiving the first registration message and the second registration message.
8. A voice server, applied to a system including a calling device, a voice server, a called device and at least one parallel device, wherein the called device and the parallel device have the same number, and when the calling device calls the called device, the voice server comprises:
a transceiver module, configured to receive a first call request message from the calling device, where the first call request message carries the number, and send the first call request message to an idle called device and a parallel device corresponding to the number;
receiving a call response from a called device or a parallel line device, and notifying the number of the calling device and identification information corresponding to a call between the calling device and a device sending the call response to the called device and other parallel line devices, wherein the voice server only receives one call response;
when a call is established between the calling device and a parallel device and the called device needs to establish the call with the calling device, receiving a second call request message from the called device, wherein the second call request message carries the number of the calling device and identification information corresponding to the call between the calling device and the parallel device;
after receiving the second call request message, releasing the call between the calling device and the parallel line device corresponding to the identification information carried in the second call request message, and sending the second call request message to the calling device by using the number of the calling device;
the establishing module is used for establishing a call between the calling equipment and the equipment for sending the call response after receiving the call response;
and after the second call request message is sent to the calling equipment by using the number of the calling equipment, establishing a call between the calling equipment and the called equipment.
9. A called device, applied to a system including a calling device, a voice server, the called device and at least one parallel device, wherein the called device and the parallel device have the same number, and when the calling device calls the called device, the called device includes:
a receiving module, configured to receive a first call request message from the voice server, where the first call request message carries the number;
when the voice server establishes a call between the calling equipment and the parallel line equipment, receiving the number of the calling equipment and identification information corresponding to the call between the calling equipment and the parallel line equipment, wherein the number of the calling equipment is notified by the voice server;
a sending module, configured to send a call response to the voice server after receiving the first call request message, where the voice server establishes a call between the calling device and the called device;
after receiving the number of the calling device and identification information corresponding to the call between the calling device and the parallel line device, if the called device needs to establish a call with the calling device, sending a second call request message to the voice server, wherein the second call request message carries the number of the calling device and the identification information corresponding to the call between the calling device and the parallel line device;
and the voice server releases the call between the calling equipment and the parallel line equipment corresponding to the identification information corresponding to the call between the calling equipment and the parallel line equipment, and establishes the call between the calling equipment and the called equipment by using the number of the calling equipment.
10. The called device of claim 9,
the sending module is further configured to send a registration message to the voice server, where the registration message carries the number of the called device and information that the called device enables the parallel service, and the voice server records that the called device enables the parallel service.
11. The called device of claim 9,
the sending module is specifically configured to, when the called device is a device with information display and processing capabilities, display, on the called device, a number of the calling device and identification information corresponding to a call between the calling device and the parallel device, and when it is determined that the called device needs to establish a call with the calling device through the displayed information on the called device, send the second call request message to the voice server; or,
when the called device is not a device with information display and processing capability, the called device prompts the user to operate and send the second call request message to the voice server by playing different dial tones or prompt tones, and when receiving corresponding instruction information for establishing a call between the called device and the calling device, the called device sends the second call request message to the voice server.
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| CN107277153B (en) | 2017-06-30 | 2020-05-26 | 百度在线网络技术（北京）有限公司 | Method, device and server for providing voice service |
| CN114554019A (en) * | 2021-12-28 | 2022-05-27 | 广州芯德通信科技股份有限公司 | Method and system for reducing load of IMSSIP server based on VOIP equipment polling group |
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| CN101019449A (en) * | 2004-11-15 | 2007-08-15 | 思科技术公司 | Handoff of communication sessions between cellular and desktop telephones |
| CN101677346A (en) * | 2008-09-15 | 2010-03-24 | 数据连接有限公司 | Telephone call processing |
| TW201145939A (en) * | 2009-12-08 | 2011-12-16 | Alcatel Lucent Usa Inc | Methods for joining SIP communication devices into an existing call |
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| CN101019449A (en) * | 2004-11-15 | 2007-08-15 | 思科技术公司 | Handoff of communication sessions between cellular and desktop telephones |
| CN101677346A (en) * | 2008-09-15 | 2010-03-24 | 数据连接有限公司 | Telephone call processing |
| TW201145939A (en) * | 2009-12-08 | 2011-12-16 | Alcatel Lucent Usa Inc | Methods for joining SIP communication devices into an existing call |
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