CN108881239B - Software telephone, roaming method thereof and soft switch equipment - Google Patents
Software telephone, roaming method thereof and soft switch equipment Download PDFInfo
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- CN108881239B CN108881239B CN201810668130.0A CN201810668130A CN108881239B CN 108881239 B CN108881239 B CN 108881239B CN 201810668130 A CN201810668130 A CN 201810668130A CN 108881239 B CN108881239 B CN 108881239B
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- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
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Abstract
The invention provides a software phone, a roaming method thereof and a soft switch device, wherein the software phone roaming method comprises the following steps: configuring soft switch equipment information; sending a protocol packet for testing the network quality to all the soft switch equipment according to the soft switch equipment information so as to obtain the name of the soft switch equipment with the best network quality; and when the soft switch equipment name is not the local soft switch equipment, sending registration information to the soft switch equipment with the best network quality so as to associate the soft switch equipment with the best network quality with the local soft switch equipment. The software phone, the roaming method thereof and the technical scheme of the soft switch equipment can improve the conversation quality during roaming.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a software phone, a roaming method thereof and a soft switch device.
Background
Soft Switch equipment is a device and system based on packet network using programmed software to provide call control function and media processing separation. The softswitch mainly provides functions of connection control, translation and routing, gateway management, call control, bandwidth management, signaling, security, call detail recording, and the like. Meanwhile, the soft switch device also encapsulates network resources and network capabilities, and is connected with the service application layer through a standard open service interface, so that new services can be conveniently and quickly provided on the network.
A softphone (softphone) is a client software registered to a softswitch, installed on a notebook computer or a mobile phone, and thus can roam with a user. By assigning legitimate telephone numbers to software phones, calling and called IP telephony functions can be achieved.
However, when the terminal of the softphone roams to a different place, the terminal is still registered on the local softswitch, and both the originating call and the receiving call are controlled by the local softswitch, considering that in the different place, the IP network between the softphone and the local softswitch may have poor conditions such as time delay, jitter, packet loss, etc., so the call quality may not be guaranteed when the softphone roams.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, and provides a software phone, a roaming method thereof and a soft switch device, which can improve the call quality during roaming.
To achieve the object of the present invention, there is provided a softphone roaming method including:
configuring soft switch equipment information;
sending a protocol packet for testing the network quality to all the soft switch equipment according to the soft switch equipment information so as to obtain the name of the soft switch equipment with the best network quality;
and when the soft switch equipment name is not the local soft switch equipment, sending registration information to the soft switch equipment with the best network quality so as to associate the soft switch equipment with the best network quality with the local soft switch equipment.
Optionally, the step of sending registration information to the softswitch device with the best network quality when the softswitch device name is not the local softswitch device, so as to associate the softswitch device with the best network quality with the local softswitch device includes:
sending registration information to the local soft switch device, where the registration information includes the name of the soft switch device with the best network quality, so that the local soft switch device determines whether the name of the soft switch device with the best network quality is the local soft switch device, and sends a notification of registering to the soft switch device with the best network quality when the name of the soft switch device is not the local soft switch device;
and when receiving the notification, sending registration information to the soft switch equipment with the best network quality so as to enable the soft switch equipment with the best network quality to be associated with the local soft switch equipment.
Optionally, the softswitch information includes local softswitch information, and an IP address list and a name list of all nationwide softswitches.
Optionally, when the name of the soft switch device is the local soft switch device, the registration information is sent to the local soft switch device.
As another technical solution, the present invention further provides a software phone roaming method, which includes:
receiving registration information sent by a softphone, wherein the registration information comprises the name of the softswitch equipment with the best network quality;
judging whether the soft switch device name with the best network quality is the local soft switch device; if yes, sending registration success information to the software phone; if not, sending roaming registration information to the soft switch equipment with the best network quality;
and when receiving the registration approval information sent by the softswitch equipment with the best network quality, sending a notice of registering to the softswitch equipment with the best network quality to the softphone so that the softphone sends the registration information to the softswitch equipment with the best network quality, thereby associating the softswitch equipment with the local softswitch equipment.
Optionally, after the step of sending a notification of registering to the softphone with the best network quality to the softphone when receiving the registration approval information sent by the softphone with the best network quality, the method further includes:
the calling softswitch sends a set up command to the access gateway to set up a connection in the null context, waiting for an off-hook event.
Optionally, after the step of sending a setup command to the access gateway by the soft switch device at the calling party to establish a connection in an empty context and waiting for an off-hook event, the method further includes:
when receiving a notification command of reporting an off-hook event sent by the access gateway when a calling party is off-hook, the calling party soft switch device sends a modification command to the access gateway to wait for the calling party to input a called number;
the calling ground soft switch equipment receives a called number sent by the access gateway;
receiving a call request sent by the calling local soft switch equipment after the called local soft switch equipment is analyzed according to the called number;
analyzing roaming soft switch equipment according to the called number, and responding called roaming information to calling soft switch equipment so that the calling soft switch equipment sends a calling request to the roaming soft switch equipment;
the roaming soft switch equipment sends a call request to the soft phone;
and the software telephone answers and calls are established.
As another technical solution, the present invention also provides a software phone, including:
the storage unit is used for configuring the soft switch equipment information;
the testing unit is used for sending a protocol packet for testing the network quality to all the soft switching equipment according to the soft switching equipment information so as to obtain the name of the soft switching equipment with the best network quality;
a connection unit, configured to send registration information to the soft switch device with the best network quality when the soft switch device name is not the local soft switch device, so as to associate the soft switch device with the best network quality with the local soft switch device.
As another technical solution, the present invention also provides a soft switch device, including:
a receiving unit, configured to receive registration information sent by a softphone, where the registration information includes a name of a softswitch device with the best network quality;
a judging unit, configured to judge whether the name of the soft switch device with the best network quality is the local soft switch device; if yes, sending registration success information to the software phone; if not, sending roaming registration information to the soft switch equipment with the best network quality;
and the notification unit is used for sending a notification of registering to the soft switch equipment with the best network quality to the softphone when receiving the registration approval information sent by the soft switch equipment with the best network quality, so that the softphone sends the registration information to the soft switch equipment with the best network quality, and the soft switch equipment with the best network quality is associated with the local soft switch equipment.
Optionally, the calling softswitch sends a setup command to the access gateway to set up a connection in the empty context, and waits for an off-hook event;
when receiving a notification command of reporting an off-hook event sent by the access gateway when a calling party is off-hook, the calling party soft switch device sends a modification command to the access gateway to wait for the calling party to input a called number;
the calling ground soft switch equipment receives a called number sent by the access gateway;
the receiving unit is also used for receiving a call request sent by the calling local soft switch equipment after the called local soft switch equipment is separated out according to the called number;
the informing unit is also used for analyzing roaming soft switch equipment according to the called number and responding called roaming information to calling soft switch equipment so that the calling soft switch equipment sends a calling request to the roaming soft switch equipment;
the roaming soft switch equipment sends a call request to the soft phone;
and the software telephone answers and calls are established.
The invention has the following beneficial effects:
in the technical scheme of the software phone, the roaming method thereof and the soft switch equipment, the soft switch equipment information is configured, and a protocol packet for testing the network quality is sent to all local soft switch equipment according to the soft switch equipment information so as to obtain the name of the soft switch equipment with the best network quality; and when the soft switch equipment name is not the local soft switch equipment, sending registration information to the soft switch equipment with the best network quality so as to associate the soft switch equipment with the best network quality with the local soft switch equipment. Therefore, the negotiation between the local soft switch equipment and the roaming soft switch equipment with the best network quality can realize that the conversation is controlled by the roaming soft switch equipment when the software phone roams, thereby ensuring the conversation quality when the software phone roams.
Drawings
Fig. 1 is a flowchart of a softphone roaming method according to a first embodiment of the present invention;
fig. 2 is a flowchart of a softphone roaming method according to a second embodiment of the present invention;
FIG. 3 is a functional block diagram of a soft phone according to a third embodiment of the present invention;
fig. 4 is a schematic block diagram of a soft switch device according to a fourth embodiment of the present invention;
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the softphone and the roaming method thereof, and the softswitch apparatus provided by the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a first embodiment of the present invention provides a softphone roaming method, which includes:
s101, configuring soft switch equipment information;
s102, sending a protocol packet for testing the network quality to all the soft switch devices according to the soft switch device information to obtain the name of the soft switch device with the best network quality;
and S103, when the name of the soft switch equipment is not the local soft switch equipment, sending registration information to the soft switch equipment with the best network quality so as to associate the soft switch equipment with the best network quality with the local soft switch equipment.
If the soft switch device with the best network quality is not the local soft switch device, the local soft switch device judges the software power supply roaming and sends software telephone roaming registration information to the soft switch device (namely, the soft switch device with the best network quality).
In the roaming method for the softphone provided by this embodiment, through negotiation between the local softswitch and the roaming softswitch with the best network quality, the control of the call by the roaming softswitch during the softphone roaming can be realized, so that the call quality during the softphone roaming can be ensured.
Optionally, the softswitch information includes local softswitch information, and an IP address list and a name list of all softswitches nationwide. All the local soft switch devices are the local soft switch device information and all the soft switch devices in the country.
Optionally, when the name of the soft switch device is a local soft switch device, the registration information is sent to the local soft switch device. Specifically, if the softswitch with the best network quality is the local softswitch, the local softswitch determines that the softphone is not roaming, and sends a registration success message.
The step S103 further includes:
and sending registration information to the local soft switch equipment, wherein the registration information comprises the name of the soft switch equipment with the best network quality, so that the local soft switch equipment judges whether the name of the soft switch equipment with the best network quality is the local soft switch equipment or not, and sends out a notice of registering to the soft switch equipment with the best network quality when the name of the soft switch equipment is not the local soft switch equipment.
And when receiving the notice, sending registration information to the soft switch equipment with the best network quality so as to associate the soft switch equipment with the best network quality with the local soft switch equipment.
As another technical solution, referring to fig. 2, a second embodiment of the present invention provides a softphone roaming method, including:
s201, receiving registration information sent by the softphone, wherein the registration information comprises the name of the softswitch equipment with the best network quality.
S202, judging whether the name of the soft switch equipment with the best network quality is local soft switch equipment; if yes, sending registration success information to the software phone; if not, the roaming registration information is sent to the soft switch equipment with the best network quality.
And S203, when receiving the registration approval information sent by the soft switch equipment with the best network quality, sending a notice of registering to the soft switch equipment with the best network quality to the software phone, so that the software phone sends the registration information to the soft switch equipment with the best network quality, and the soft switch equipment with the best network quality is associated with the local soft switch equipment.
In practical application, when the software phone is used as a calling phone, the method is consistent with the conventional call flow.
When the software phone is used as a called phone, the following process can be adopted:
specifically, after the step S203, the method further includes:
the calling softswitch sends a set up command to the access gateway to set up a connection in the null context, waiting for an off-hook event.
When receiving a notification command of reporting an off-hook event sent by an access gateway when a calling party is off-hook, a calling party soft switch device sends a modification command to the access gateway to wait for the calling party to input a called number;
the calling ground soft switch equipment receives a called number sent by an access gateway;
receiving a call request sent by calling local soft switch equipment after the local soft switch equipment to which a called party belongs is analyzed according to the called number;
analyzing roaming soft switch equipment according to the called number, and responding the called roaming information to the calling soft switch equipment so that the calling soft switch equipment sends a calling request to the roaming soft switch equipment;
the roaming soft switch equipment sends a call request to the soft phone;
and (5) answering by the software phone and establishing a call.
In the roaming method for the softphone provided by this embodiment, through negotiation between the local softswitch and the roaming softswitch with the best network quality, the control of the call by the roaming softswitch during the softphone roaming can be realized, so that the call quality during the softphone roaming can be ensured.
As another technical solution, referring to fig. 3, a third embodiment of the present invention provides a soft phone, which includes:
a storage unit 1, configured to configure soft switch device information;
the testing unit 2 is used for sending a protocol packet for testing the network quality to all the soft switch devices according to the soft switch device information so as to obtain the name of the soft switch device with the best network quality;
and a connection unit 3, configured to send registration information to the softswitch with the best network quality when the softswitch name is not the local softswitch, so as to associate the softswitch with the best network quality with the local softswitch.
The soft switch equipment information comprises local soft switch equipment information, IP address lists and name lists of all soft switch equipment in the country. All the local soft switch devices are the local soft switch device information and all the soft switch devices in the country.
The softphone provided by this embodiment, through negotiation between the local softswitch and the roaming softswitch with the best network quality, can realize that the call is controlled by the roaming softswitch when the softphone roams, so that the call quality can be ensured when the softphone roams.
As another technical solution, referring to fig. 4, a soft switch device according to a fourth embodiment of the present invention includes:
a receiving unit 4, configured to receive registration information sent by the softphone, where the registration information includes a name of a softswitch device with the best network quality;
a judging unit 5, configured to judge whether the name of the soft switch device with the best network quality is a local soft switch device; if yes, sending registration success information to the software phone; if not, sending roaming registration information to the soft switch equipment with the best network quality;
and a notification unit 6, configured to, upon receiving the registration agreement information sent by the softswitch device with the best network quality, send a notification of registration to the softswitch device with the best network quality to the softphone, so that the softphone sends the registration information to the softswitch device with the best network quality, thereby associating the softswitch device with the local softswitch device with the best network quality.
In practical application, when the software phone is used as a calling phone, the method is consistent with the conventional call flow.
When the software phone is used as a called phone, the following process can be adopted:
the calling soft switch device sends a setup command to the access gateway to set up a connection in the empty context, and waits for an off-hook event;
when receiving a notification command of reporting an off-hook event sent by the access gateway when a calling party is off-hook, the calling party soft switch device sends a modification command to the access gateway to wait for the calling party to input a called number;
the calling ground soft switch equipment receives a called number sent by an access gateway;
the receiving unit is also used for receiving a call request sent by the calling local soft switch equipment after the called local soft switch equipment is separated out according to the called number;
the informing unit is also used for analyzing the roaming soft switch equipment according to the called number and responding the called roaming information to the calling soft switch equipment so that the calling soft switch equipment sends a calling request to the roaming soft switch equipment;
the roaming soft switch equipment sends a call request to the soft phone;
and (5) answering by the software phone and establishing a call.
The softswitch apparatus provided in this embodiment, through negotiation between the local softswitch apparatus and the roaming soft switch apparatus with the best network quality, may implement that the call is controlled by the roaming soft switch apparatus when the softphone roams, so as to ensure the call quality when the softphone roams.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (9)
1. A softphone roaming method, comprising:
configuring soft switch equipment information;
sending a protocol packet for testing the network quality to all the soft switch equipment according to the soft switch equipment information so as to obtain the name of the soft switch equipment with the best network quality;
when the name of the soft switch equipment is not local soft switch equipment, sending registration information to the soft switch equipment with the best network quality so as to associate the soft switch equipment with the best network quality with the local soft switch equipment;
the step of sending registration information to the softswitch with the best network quality when the softswitch name is not the local softswitch, so as to associate the softswitch with the best network quality with the local softswitch, includes:
sending registration information to the local soft switch device, where the registration information includes the name of the soft switch device with the best network quality, so that the local soft switch device determines whether the name of the soft switch device with the best network quality is the local soft switch device, and sends a notification of registering to the soft switch device with the best network quality when the name of the soft switch device is not the local soft switch device;
and when receiving the notification, sending registration information to the soft switch equipment with the best network quality so as to enable the soft switch equipment with the best network quality to be associated with the local soft switch equipment.
2. The softphone roaming method of claim 1, wherein the softswitch information comprises local softswitch information, a list of IP addresses and a list of names of nationwide softswitches.
3. The softphone roaming method of claim 1, wherein when the softswitch name is the home softswitch, sending registration information to the home softswitch.
4. A softphone roaming method, comprising:
receiving registration information sent by a software telephone, wherein the registration information comprises a name of a soft switch device with the best network quality;
judging whether the name of the soft switch equipment with the best network quality is local soft switch equipment or not; if yes, sending registration success information to the software phone; if not, sending roaming registration information to the soft switch equipment with the best network quality;
and when receiving the registration approval information sent by the softswitch equipment with the best network quality, sending a notice of registering to the softswitch equipment with the best network quality to the softphone so that the softphone sends the registration information to the softswitch equipment with the best network quality, thereby associating the softswitch equipment with the local softswitch equipment.
5. The softphone roaming method according to claim 4, wherein after the step of sending the softphone a notification of registration with the softswitch device with the best network quality when receiving the agreement registration information sent by the softswitch device with the best network quality, further comprising:
the calling softswitch sends a set up command to the access gateway to set up a connection in the null context, waiting for an off-hook event.
6. The softphone roaming method of claim 5, further comprising, after the step of the calling softswitch sending a setup command to the access gateway to set up a connection in an empty context, waiting for an off-hook event:
when receiving a notification command of reporting an off-hook event sent by the access gateway when a calling party is off-hook, the calling party soft switch device sends a modification command to the access gateway to wait for the calling party to input a called number;
the calling ground soft switch equipment receives a called number sent by the access gateway;
receiving a call request sent by the calling local soft switch equipment after the called local soft switch equipment is analyzed according to the called number;
analyzing roaming soft switch equipment according to the called number, and responding called roaming information to calling soft switch equipment so that the calling soft switch equipment sends a calling request to the roaming soft switch equipment;
the roaming soft switch equipment sends a call request to the soft phone;
and the software telephone answers and calls are established.
7. A softphone, comprising:
the storage unit is used for configuring the soft switch equipment information;
the testing unit is used for sending a protocol packet for testing the network quality to all the soft switching equipment according to the soft switching equipment information so as to obtain the name of the soft switching equipment with the best network quality;
a connection unit, configured to send registration information to a soft switch device with the best network quality when the name of the soft switch device is not a local soft switch device, so as to associate the soft switch device with the best network quality with the local soft switch device;
the connection unit is configured to send registration information to the local soft switch device, where the registration information includes the name of the soft switch device with the best network quality, so that the local soft switch device determines whether the name of the soft switch device with the best network quality is the local soft switch device, and sends a notification of registering to the soft switch device with the best network quality when the name of the soft switch device is not the local soft switch device; and when receiving the notification, sending registration information to the soft switch equipment with the best network quality so as to enable the soft switch equipment with the best network quality to be associated with the local soft switch equipment.
8. A softswitch apparatus, comprising:
the receiving unit is used for receiving registration information sent by the software telephone, wherein the registration information comprises a soft switch equipment name with the best network quality;
a judging unit, configured to judge whether the name of the soft switch device with the best network quality is a local soft switch device; if yes, sending registration success information to the software phone; if not, sending roaming registration information to the soft switch equipment with the best network quality;
and the notification unit is used for sending a notification of registering to the soft switch equipment with the best network quality to the softphone when receiving the registration approval information sent by the soft switch equipment with the best network quality, so that the softphone sends the registration information to the soft switch equipment with the best network quality, and the soft switch equipment with the best network quality is associated with the local soft switch equipment.
9. The softswitch of claim 8, wherein the calling softswitch sends a setup command to the access gateway to establish a connection in an empty context, waiting for an off-hook event;
when receiving a notification command of reporting an off-hook event sent by the access gateway when a calling party is off-hook, the calling party soft switch device sends a modification command to the access gateway to wait for the calling party to input a called number;
the calling ground soft switch equipment receives a called number sent by the access gateway;
the receiving unit is also used for receiving a call request sent by the calling local soft switch equipment after the called local soft switch equipment is separated out according to the called number;
the informing unit is also used for analyzing roaming soft switch equipment according to the called number and responding called roaming information to calling soft switch equipment so that the calling soft switch equipment sends a calling request to the roaming soft switch equipment;
the roaming soft switch equipment sends a call request to the soft phone;
and the software telephone answers and calls are established.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413136A (en) * | 2011-11-21 | 2012-04-11 | 重庆市电力公司信息通信分公司 | VoIP system and method for realizing penetration of VoIP voice stream through fire wall |
| CN104158989A (en) * | 2014-07-28 | 2014-11-19 | 深圳市邦彦信息技术有限公司 | Fixed telephone roaming system and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8477758B2 (en) * | 2001-12-21 | 2013-07-02 | At&T Intellectual Property I, L.P. | Voice over network (VoN)/voice over internet protocol (VoIP) architect having hotline and optional tie line |
| CN100576864C (en) * | 2005-12-29 | 2009-12-30 | 耐通信息科技（上海）有限公司 | The dynamic registration method of IP phone extension set roaming |
| CN101345895A (en) * | 2007-07-11 | 2009-01-14 | 中国电信股份有限公司 | Method and system for implementing fixed telephone moving and roaming |
| CN101951588B (en) * | 2010-09-16 | 2013-04-17 | 中国联合网络通信集团有限公司 | Method and system for accessing server during roaming process of software phone or IP phone user |
| CN103716299B (en) * | 2013-09-22 | 2019-10-25 | 南京中兴新软件有限责任公司 | A kind of method to be conversated based on SIP, terminal and call business server |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413136A (en) * | 2011-11-21 | 2012-04-11 | 重庆市电力公司信息通信分公司 | VoIP system and method for realizing penetration of VoIP voice stream through fire wall |
| CN104158989A (en) * | 2014-07-28 | 2014-11-19 | 深圳市邦彦信息技术有限公司 | Fixed telephone roaming system and method |
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