CN104683610A - A method and device for improving VoIP voice quality - Google Patents

Abstract

The invention discloses a method and equipment capable of improving the voice quality of a VoIP (Voice over Internet Protocol). The method comprises the steps that a network side receives a click dialing service request sent by a VoIP client, wherein a calling number and called address information are carried in the click dialing service request; the network side keeps the continuity of a VoIP call link of the VoIP client and sends a calling request message to terminal equipment corresponding to the calling number according to the calling number; the network side receives a calling response message returned by the terminal equipment corresponding to the calling number and removes the VoIP call link of the VoIP client; the network side sends a calling request message to terminal equipment corresponding to the called address information according to the called address information and receives a calling response message returned by the terminal equipment corresponding to the called address information. According to the method and the equipment, the voice quality of the VoIP is improved.

Description

A method and device for improving VoIP voice quality

technical field

The invention relates to the technical field of communication, in particular to a method and equipment for improving VoIP voice quality.

Background technique

VoIP (Voice over Internet Protocol, Internet telephony) technology: that is, IP telephony, which digitizes analog signals and implements them on the IP network or the Internet through exchange processing such as voice compression coding, packaging and grouping, distribution routing, storage exchange, unpacking and decompression, etc. Real-time voice communication. Since VoIP technology is a voice transmission solution developed on the basis of the Internet, it is a connectionless application, and its data transmission follows a "best effort" principle. After the remote end sends out, the path it passes through is uncertain, the delay cannot be guaranteed, and the packet loss is also unpredictable. The network delay and delay jitter change with the quality of the network, which is unpredictable and uncertain . At the same time, any transmission system is bound to be limited by bandwidth, and network transmission is no exception. If the number of packet loss reaches a certain limit, it will also cause a decline in voice quality. Therefore, the Quality of Service (QoS) of VoIP has always been limited. Not guaranteed.

Improving the quality of VoIP calls needs to start from two aspects: one is to improve the service quality of the IP network, and the other is to use various technologies to ensure the voice quality at the IP phone terminal. Most of the existing technologies start from the aspect of improving QoS. Through the analysis of the MAC (Medium Access Control) layer of voice transmission, the DCF (Distributed Coordination Function) mechanism and the HCF (Hybrid Coordination Function) mechanism of the MAC layer are aimed at. Coordination Function, hybrid coordination function) proposes an improved algorithm or introduces a priority mechanism to improve the QoS of VoIP. This method is cumbersome and requires accurate theoretical analysis and simulation experiments to demonstrate, and it is not stable enough. If the network condition is poor or the network is congested, this method cannot achieve the effect of improving call quality.

Contents of the invention

The invention provides a method and equipment for improving the VoIP voice quality, which are used to improve the VoIP voice quality.

In order to achieve the above object, the embodiment of the present invention provides a method for improving the voice quality of Internet telephony VoIP, including:

The network side receives the click-to-dial service request sent by the VoIP client, and the click-to-dial service request carries calling number and called address information; wherein, the click-to-dial service request is determined by the VoIP client during the VoIP call Sent to the network side after the trigger condition is met;

The network side maintains the connection of the VoIP call link of the VoIP client, and sends a call request message to the terminal device corresponding to the calling number according to the calling number;

The network side receives the call response message returned by the terminal equipment corresponding to the calling number, and removes the VoIP call link of the VoIP client;

The network side sends a call request message to the terminal device corresponding to the called address information according to the called address information, and receives a call response message returned by the terminal device corresponding to the called address information.

Embodiments of the present invention also provide a method for improving the voice quality of Internet telephony VoIP, including:

When the VoIP client determines that the trigger condition is met during the VoIP call, the VoIP client sends a click-to-dial service request to the network side, and the click-to-dial service request carries calling number and called address information;

The VoIP client receives the VoIP call link teardown request sent by the network side. The VoIP call teardown request is that the network side receives the dialing service request, and sends a call to the terminal device corresponding to the calling number according to the calling number. sending a call request message, and sending it to the VoIP client after receiving a call response message returned by the terminal device corresponding to the calling number;

The VoIP client returns a VoIP call link teardown response message to the network side, so that the network side sends a call to the terminal device corresponding to the called address information after receiving the VoIP call link teardown response message request message.

The embodiment of the present invention also provides a network side device, including:

The receiving module is configured to receive the click-to-dial service request sent by the VoIP client, the click-to-dial service request carries calling number and called address information; Sending to the network side after determining that the trigger condition is met during the process; receiving the call response message returned by the terminal device corresponding to the calling number; receiving the call response message returned by the terminal device corresponding to the called address information;

A sending module, configured to send a call request message to a terminal device corresponding to the calling number according to the calling number; when the receiving module receives a call response message returned by the terminal device corresponding to the calling number, according to The called address information sends a call request message to the terminal device corresponding to the called address information;

A processing module, configured to keep the VoIP call link of the VoIP client connected when the receiving module receives the click-to-dial service request sent by the VoIP client; When the terminal device returns a call response message, the VoIP call link of the VoIP client is removed.

The embodiment of the present invention also provides a VoIP client, including:

A determining module, configured to determine whether a trigger condition is met during a VoIP call;

A sending module, configured to send a click-to-dial service request to the network side when the determination module determines that the trigger condition is met, the click-to-dial service request carries calling number and called address information; when the VoIP client receives When the VoIP call link teardown request sent by the network side returns a VoIP call link teardown response message to the network side;

The receiving module is configured to receive a VoIP call link teardown request sent by the network side. The VoIP call teardown request is that the network side receives the dialing service request, and sends a message to the terminal device corresponding to the calling number according to the calling number. Send a call request message, and send it to the VoIP client after receiving a call response message returned by the terminal device corresponding to the calling number.

In the foregoing embodiments of the present invention, when the VoIP client determines that the trigger condition is met during the VoIP call, it sends a click-to-dial service request to the network side, and the click-to-dial service request carries calling number and called address information; the network side After receiving the dialing service request, keep the VoIP call link of the VoIP client connected, and send a call request message to the terminal device corresponding to the calling number according to the calling number; when the network side receives the calling number and returns When the call response message is received, the VoIP call link of the VoIP client is removed, and according to the called address information carried in the click-to-dial service request, a call request is sent to the terminal device corresponding to the called address information, and then the called address information is received. In the call response message returned by the corresponding terminal equipment, during the VoIP call, the access mode of the VoIP call is switched from the internet access mode to the click-to-dial access mode, which improves the VoIP voice quality.

Description of drawings

Fig. 1 is a schematic flow chart of a method for improving VoIP voice quality provided by an embodiment of the present invention;

Fig. 2 is a schematic flow chart of a method for improving VoIP voice quality provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a network side device provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a VoIP client provided by an embodiment of the present invention.

Detailed ways

Aiming at the above-mentioned problems in the prior art, the embodiment of the present invention provides a technical solution for improving the voice quality of VoIP. In this technical solution, when the VoIP client determines that the trigger condition is satisfied during the VoIP call, it sends a click-to-dial service request to the network side, and the click-to-dial service request carries calling number and called address information; the network side receives After receiving the dialing service request, keep the VoIP call link of the VoIP client connected, and send a call request message to the terminal equipment corresponding to the calling number according to the calling number; When calling a response message, remove the VoIP call link of the VoIP client, and send a call request to the terminal device corresponding to the called address information according to the called address information carried in the click-to-dial service request, and then receive the corresponding The call response message returned by the terminal equipment, in the process of the VoIP call, the access mode of the VoIP call is switched from the internet access mode to the click-to-dial access mode, which improves the VoIP voice quality.

The technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Apparently, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

As shown in Figure 1, a schematic flow chart of a method for improving VoIP voice quality provided by an embodiment of the present invention may include the following steps:

Step 101. When the VoIP client determines that the trigger condition is met during the VoIP call, the VoIP client sends a click-to-dial service request to the network side, and the click-to-dial service request carries calling number and called address information.

Specifically, in the embodiment of the present invention, in order to ensure the quality of VoIP voice, during the VoIP call, when the call quality is poor, the access mode of the VoIP call can be automatically or manually switched from the internet access mode to the ordinary mobile voice access (such as click-to-dial access).

In order to achieve the above purpose, the VoIP client can determine that the current state meets the trigger condition when it detects that the MOS (Mean Opinion Score) value of the current VoIP call is lower than the threshold (the threshold can be preset according to the actual application scenario) , to send a click-to-dial service request to the network side; or, the VoIP client may determine that the current state meets the trigger condition when receiving the switching instruction, and send a click-to-dial service request to the network side, and the switching instruction may be the user corresponding to the VoIP client When the quality of the current VoIP call is found to be poor, it is sent to the VoIP client through a preset operation (such as clicking a specific button).

Wherein, the click-to-dial service request sent by the VoIP client to the network side carries the calling number and called address information, so that the network side can determine the corresponding calling terminal and called terminal according to the calling number and called address information. terminal. Wherein, the calling number may be the communication number of the communication terminal of the user corresponding to the VoIP client.

Step 102, the network side maintains the connection of the VoIP call link of the VoIP client, and sends a call request message to the terminal device corresponding to the calling number according to the calling number carried in the click-to-dial service request.

Specifically, in the embodiment of the present invention, in order to ensure that the call process is not interrupted, the network side will not dismantle the VoIP call until the terminal device corresponding to the calling number carried in the click-to-dial service request is connected to the newly initiated click-to-dial service. The client's current VoIP call.

Correspondingly, when the network side receives the click-to-dial service request sent by the VoIP client, the network side keeps the connection of the VoIP call link of the VoIP client, and corresponds to the calling number according to the calling number carried in the click-to-dial service request. The terminal device (which can be a mobile phone or a landline) sends a call request message.

Step 103, the network side receives the call response message returned by the terminal device corresponding to the calling number, and sends a VoIP call link disconnection request to the VoIP client.

Specifically, after receiving the call request message sent by the network side, the terminal device corresponding to the calling number can prompt the user whether to connect the call, and when receiving the user's instruction to connect the call, return a call response message to the network side.

After receiving the call response message returned by the terminal device corresponding to the calling number, the network side determines that the VoIP call link of the VoIP client can be removed, and sends a VoIP call link teardown request to the VoIP client.

Step 104, the VoIP client returns a VoIP call link disconnection response message to the network side.

Specifically, after the VoIP client receives the VoIP call link disconnection request sent by the network side, since the user corresponding to the VoIP client has connected the call corresponding to the click-to-dial service, the VoIP client can remove the current VoIP call link and return a VoIP call link teardown response message to the network side.

Step 105: The network side sends a call request to the terminal device corresponding to the called address information according to the called address information carried in the click-to-dial service request, and receives a call response message returned by the terminal device corresponding to the called address information.

Specifically, after the network side determines that the VoIP client has disconnected the VoIP call link, and determines that the terminal device corresponding to the calling number carried in the click-to-dial service request connects to the call corresponding to the click-to-dial service, the network side can request the click-to-dial service The terminal device corresponding to the called address information carried in the terminal device sends a call request, and after receiving the call response message returned by the terminal device, it is determined that the call corresponding to the click-to-dial service has been re-established between the calling party and the called party. Wherein, the called address information in the click-to-dial service request may be called SIP (Session Initiation Protocol, session initiation protocol) URI (Uniform Resource Identifier, same resource identifier).

It should be noted that in the embodiment of the present invention, the calling number carried in the click-to-dial service request is not limited to the communication number of the user's communication terminal corresponding to the VoIP client, and the called address information is not limited to the called SIP URI , based on the embodiment of the present invention, any modification made by those skilled in the art to the calling number and called address information without any creative work shall fall within the protection scope of the present invention.

The technical solutions provided by the embodiments of the present invention will be described in more detail below in conjunction with specific application scenarios.

As shown in Figure 2, it is a schematic flow diagram of a method for improving VoIP voice quality provided by an embodiment of the present invention, which may include:

Step 201, during a VoIP call between user A and user B, the VOIP client of user A finds that the quality of the voice call is poor, so it performs click-to-dial switching (manually or automatically). call address information, and initiate a click-to-dial service request to the IMS network side.

Step 202, the IMS core network receives the click-to-dial service request, sends a response message and maintains the connection of the VoIP call link.

In step 203, the IMS core network sends a call request message to the user A's terminal device (mobile phone, landline, etc.) corresponding to the calling number according to the calling number provided by user A.

Step 204, the terminal device of user A receives the call request message, and sends a call response message.

In step 205, the IMS core network removes the previous VoIP access mode (that is, the original VoIP call link) of user A.

Step 206, the VoIP client of user A returns response information.

Step 207, the IMS core network sends call request information to user B according to the called address information.

Step 208, user B sends call response information. User A and user B continue the voice call.

It can be seen from the above description that in the technical solution provided by the embodiment of the present invention, when the VoIP client determines that the trigger condition is satisfied during the VoIP call, it sends a click-to-dial service request to the network side, and the click-to-dial service request carries a Calling number and called address information; after receiving the dialing service request, the network side keeps the VoIP call link of the VoIP client connected, and sends a call request message to the terminal device corresponding to the calling number according to the calling number ; When the network side receives the call response message returned by the calling number, the VoIP call link of the VoIP client is removed, and the terminal equipment corresponding to the called address information is sent to the terminal device corresponding to the called address information according to the called address information carried in the click-to-dial service request. Send a call request, and then receive the call response message returned by the terminal device corresponding to the called address information. During the VoIP call, switch the access mode of the VoIP call from the internet access mode to the click-to-dial access mode, which improves the VoIP voice quality avoids poor call quality or even disconnection caused by insufficient network bandwidth.

Based on the same technical concept, the embodiment of the present invention also provides a network side device, which can be applied to the above method embodiment.

As shown in FIG. 3, it is a schematic structural diagram of a network side device provided by an embodiment of the present invention, which may include:

Receiving module 31, is used for receiving the click-to-dial service request that VoIP client sends, and this click-to-dial service request carries calling number and called address information; Wherein, described click-to-dial service request is described VoIP client in VoIP Sending to the network side after determining that the trigger condition is met during the call; receiving a call response message returned by the terminal device corresponding to the calling number; receiving a call response message returned by the terminal device corresponding to the called address information;

A sending module 32, configured to send a call request message to a terminal device corresponding to the calling number according to the calling number; when the receiving module receives a call response message returned by the terminal device corresponding to the calling number, Sending a call request message to a terminal device corresponding to the called address information according to the called address information;

The processing module 33 is used to keep the connection of the VoIP call link of the VoIP client when the receiving module receives the click-to-dial service request sent by the VoIP client; When the terminal device returns a call response message, the VoIP call link of the VoIP client is removed.

Wherein, the trigger conditions include:

The mean opinion score MOS value of the VoIP call is below the threshold; or,

A switch command was received.

Wherein, the processing module 33 is specifically configured to remove the VoIP call link of the VoIP client in the following manner:

Sending a VoIP call link teardown request to the VoIP client; receiving a VoIP call link teardown response message returned by the VoIP client.

Based on the same technical idea, the embodiment of the present invention also provides a VoIP client, which can be applied to the above method embodiment.

As shown in Figure 4, a schematic structural diagram of a VoIP client provided by the embodiment of the present invention may include:

Determining module 41, is used for determining whether trigger condition is met during VoIP conversation;

The sending module 42 is used to send a click-to-dial service request to the network side when the determination module determines that the trigger condition is met, and the click-to-dial service request carries calling number and called address information; when the VoIP client receives When receiving the VoIP call link teardown request sent by the network side, return a VoIP call link teardown response message to the network side;

The receiving module 43 is configured to receive a VoIP call link teardown request sent by the network side. The VoIP call teardown request is that the network side receives the dialing service request and sends a call to the terminal corresponding to the calling number according to the calling number. The device sends a call request message, and sends it to the VoIP client after receiving a call response message returned by the terminal device corresponding to the calling number.

Wherein, the determining module 41 is specifically configured to determine that the trigger condition is met in the following situations:

The VoIP client detects that the MOS value of the VoIP call is lower than a threshold; or,

The VoIP client receives the switching instruction.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is a better implementation Way. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions to make a A terminal device (which may be a mobile phone, a personal computer, a server, or a network device, etc.) executes the methods described in various embodiments of the present invention.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. improve a method for Internet Protocol telephone VoIP voice quality, it is characterized in that, comprising:

Network side receives the Click To Dial request that VoIP client sends, and carries calling number and called address information in this Click To Dial request; Wherein, described Click To Dial request sends to network side after described VoIP client determines to meet trigger condition in VoIP communication process;

Described network side keeps continuing of the VoIP talking link of described VoIP client, and sends call request message according to described calling number to the terminal equipment that described calling number is corresponding;

Described network side receives the call message that terminal equipment corresponding to described calling number returns, and removes the VoIP talking link of described VoIP client;

Described network side sends call request message according to described called address information to terminal equipment corresponding to this called address information, and receives the call message that terminal equipment corresponding to described called address information return.

2. the method for claim 1, is characterized in that, described trigger condition comprises:

The average suggestion value MOS value of VoIP call is lower than threshold value; Or,

Receive switching command.

3. the method for claim 1, is characterized in that, described network side removes the VoIP talking link of described VoIP client, is specially:

Described network side sends VoIP talking link to described VoIP client and removes request;

Described network side receives the VoIP talking link dismounting response message that described VoIP client returns.

4. improve a method for Internet Protocol telephone VoIP voice quality, it is characterized in that, comprising:

When described VoIP client is determined to meet trigger condition in VoIP communication process, described VoIP client sends Click To Dial request to network side, carries calling number and called address information in this Click To Dial request;

Described VoIP client receives the VoIP talking link dismounting request that network side sends, this VoIP call dismounting request is that described network side receives described dial business request, call request message is sent to the terminal equipment that this calling number is corresponding according to described calling number, and after receiving the call message that terminal equipment corresponding to described calling number return, send to described VoIP client;

Described VoIP client returns VoIP talking link to described network side and removes response message, sends call request message to make described network side after receiving this VoIP talking link dismounting response message to the terminal equipment that described called address information is corresponding.

5. method as claimed in claim 4, it is characterized in that, described VoIP client is determined to meet trigger condition in VoIP communication process, is specially:

Described VoIP client detects that average suggestion value MOS value that VoIP converses is lower than threshold value; Or,

Described VoIP client receives switching command.

6. a network equipment, is characterized in that, comprising:

Receiver module, for receiving the Click To Dial request that VoIP client sends, carries calling number and called address information in this Click To Dial request; Wherein, described Click To Dial request sends to network side after described VoIP client determines to meet trigger condition in VoIP communication process; Receive the call message that terminal equipment corresponding to described calling number returns; Receive the call message that described called address information counterpart terminal equipment returns;

Sending module, for sending call request message according to described calling number to the terminal equipment that described calling number is corresponding; When described receiver module receives the call message that terminal equipment corresponding to described calling number return, send call request message according to described called address information to the terminal equipment that this called address information is corresponding;

Processing module, for receive when described receiver module VoIP client send Click To Dial request time, keep continuing of the VoIP talking link of described VoIP client; When described receiver module receives the call message that terminal equipment corresponding to described calling number return, remove the VoIP talking link of described VoIP client.

7. network equipment as claimed in claim 6, it is characterized in that, described trigger condition comprises:

The average suggestion value MOS value of VoIP call is lower than threshold value; Or,

Receive switching command.

8. network equipment as claimed in claim 6, is characterized in that, described processing module, specifically for realizing the VoIP talking link of removing described VoIP client in the following manner:

Send VoIP talking link to described VoIP client and remove request; Receive the VoIP talking link dismounting response message that described VoIP client returns.

9. a VoIP client, is characterized in that, comprising:

Determination module, for determining whether to meet trigger condition in VoIP communication process;

Sending module, for when described determination module is determined to meet trigger condition, sends Click To Dial request to network side, carries calling number and called address information in this Click To Dial request; When the VoIP talking link that described VoIP client receives the transmission of described network side removes request, return VoIP talking link to described network side and remove response message;

Receiver module, the VoIP talking link sent for receiving network side removes request, this VoIP call dismounting request is that described network side receives described dial business request, call request message is sent to the terminal equipment that this calling number is corresponding according to described calling number, and after receiving the call message that terminal equipment corresponding to described calling number return, send to described VoIP client.

10. VoIP client as claimed in claim 9, it is characterized in that, described determination module is specifically for determining to meet trigger condition in following situation:

Described VoIP client detects that average suggestion value MOS value that VoIP converses is lower than threshold value; Or,

Described VoIP client receives switching command.