CN111385419A

CN111385419A - Call processing method and device

Info

Publication number: CN111385419A
Application number: CN201910115170.7A
Authority: CN
Inventors: 邓志磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-12-29
Filing date: 2019-02-14
Publication date: 2020-07-07
Anticipated expiration: 2039-02-14
Also published as: CN113556429A; CN111385419B; CN113556429B

Abstract

The invention provides a method and a device for processing a call, which comprises the following steps: receiving a call request sent by a calling terminal; carrying out media negotiation with a calling terminal and playing video content; and when the message of the early media playback negotiation is received, the audio and video color ring is played to the calling terminal. The invention provides the video content displayed during the call initiation for the calling terminal, fully utilizes the network resource and improves the user experience.

Description

Call processing method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for call processing.

Background

With the deployment of 4 th generation (4G) wireless communication systems and the introduction of volte (voice over lte), the wireless communication systems can provide high definition voice calls and video calls, as well as video color ring services.

In the current VoLTE video color ring back tone system, after the called terminal replies a 180 ringing message, the video color ring back tone server starts to perform early media negotiation and color ring back tone playing. Therefore, before the video color ring is played, the calling terminal user has a period of call waiting blank time (about 2-6 seconds), and the user experience is not friendly.

Disclosure of Invention

The embodiment of the invention provides a call processing method and device, which provide video content displayed during call initiation for a calling terminal and improve user experience.

In a first aspect, an embodiment of the present invention provides a call processing method, applied to a video server, including: receiving a call request sent by a calling terminal; carrying out media negotiation with a calling terminal and sending video content; and stopping sending the video content when receiving the information of the early media playing negotiation.

The method provides the video content displayed during the call initiation for the calling terminal, improves the user experience and makes full use of the network resources.

In one possible design, the negotiating media with the calling terminal includes: the video server determines that the calling terminal supports playing the video according to the field contained in the call request; and sending a media updating message to the calling terminal, wherein the media updating message carries the audio and video capability description information of the video server.

In yet another possible design, the early media playback negotiation may include a basic ringback tone negotiation, an audio-visual ringback tone negotiation, or a failed announcement negotiation.

In yet another possible design, the calling subscriber signs up for a video service, and the video server is located in the calling IMS domain; or the called user signs a video service, and the video server is located in the called IMS domain.

In yet another possible design, the video server simulates the response of the calling terminal and performs media negotiation with the called terminal.

In yet another possible design, the method further includes: and the video server transmits a message when the color ring server and the calling terminal perform color ring play negotiation.

In yet another possible design, the video content is determined based on characteristics of the calling user.

These possible designs further increase the flexibility of the system.

In a second aspect, an embodiment of the present invention provides a call processing method, applied to a color ring server, including: receiving a call request sent by a calling terminal; carrying out media negotiation with a calling terminal and sending video content; stopping sending the video when receiving a ringing message of the called terminal; and sending the audio and video color ring to the calling terminal.

In one possible design, the negotiating media with the calling terminal includes: the color ring server determines that the calling terminal supports playing video according to the field contained in the call request; and sending a media updating message to the calling terminal, wherein the media updating message carries the audio and video capability description information of the color ring server.

The method and the possible design thereof provide the video content displayed during the call initiation for the calling terminal, improve the user experience, fully utilize the network resources and further increase the flexibility of the system.

In a third aspect, an embodiment of the present invention provides a video server, which has a function of implementing the video server in the foregoing method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions, such as a communication unit and a processing unit.

In one possible design, the video server may be configured to include a processor and a memory, the memory being configured to store application program code for performing the above-described method, and the processor being configured to execute the program stored in the memory. The video server may also include a communication interface for communicating with other devices.

In a fourth aspect, an embodiment of the present invention provides a color ring server, which has a function of implementing the color ring server in the foregoing method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions, such as a communication unit and a processing unit.

In one possible design, the color ring server includes a processor and a memory, the memory is used for storing program codes for executing the method, and the processor is configured to execute the program stored in the memory. The polyphonic ringtone server can also comprise a communication interface used for communicating with other equipment.

In a fifth aspect, an embodiment of the present invention provides a call processing method, which is applied to a terminal device, and includes: initiating a call request to a called terminal; performing media negotiation with a network device and receiving video content; and carrying out media negotiation with the network equipment and receiving the audio and video color ring.

In a sixth aspect, an embodiment of the present invention provides a terminal device, including a communication unit and a processing unit, where: the communication unit is used for initiating a call request to a called terminal; the processing unit is used for performing media negotiation with the network equipment and receiving the video content, and performing media negotiation with the network equipment and receiving the audio and video color ring.

In one possible design, the terminal device includes a processor and a memory, the memory is used for storing program codes for executing the method, and the processor is configured to execute the program stored in the memory. The terminal device may further comprise a communication interface for communicating with other devices.

In a seventh aspect, an embodiment of the present invention provides a computer storage medium, configured to store computer software instructions for the video server, the polyphonic ringtone server, and the terminal device, where the computer software instructions include a program designed to execute the foregoing aspects.

The technical scheme provided by the embodiment of the invention provides the video content displayed during calling for the calling terminal, improves the user experience and fully utilizes network resources. And further increases the flexibility of the system through different designs.

Drawings

Fig. 1 is a schematic diagram of a call processing system according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a call processing method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating another call processing method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a video server according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another video server according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a color ring server according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another color ring server according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another terminal device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the embodiment of the invention, if a calling party calls a called party, a network plays a small segment of video content to a calling terminal within the idle time of waiting for the ringing of the called party until the ringing of the called party plays an audio-video color ring or a notification sound. The short segment of video may be referred to as "on screen video", "call video", or otherwise, and the name itself does not constitute a technical limitation. The following description will take "video on screen" as an example.

The device for providing the open screen video may be an independent video server (hereinafter referred to as an open screen video server), or may be a network device co-located with other network elements, and may directly play the open screen video to the calling terminal after the calling user initiates a call until the called IMS domain begins to negotiate with the calling terminal for normal playback (such as basic ring back tone, audio/video color ring, failure notification tone, and other scenes).

The embodiment of the application can be applied to 4 th generation (4G), 5 th generation (5G) mobile communication network architecture or future networks. For convenience of description, the network architecture and the method flow of the scheme are described below by taking a 4G network architecture as an example.

As shown in fig. 1, a system architecture diagram applied in a VoLTE network according to an embodiment of the present invention includes: the system comprises a calling terminal, a called terminal, a wireless access network, an Internet Protocol (IP) multimedia subsystem (IMS) domain network of a calling side and a called side.

The IMS domains of the calling side and the called side may include an IMS domain core network and an Evolved Packet Core (EPC). The IMS domain core network comprises: a service-call session control function (S-CSCF), an inquiry-call session control function (I-CSCF), a proxy-call session control function (P-CSCF), a Home Subscriber Server (HSS), a Session Border Controller (SBC), and several dedicated servers, such AS a multimedia telephony application server (MMTel AS). Wherein the I-CSCF may be collocated with the S-CSCF and may be referred to as "I/S-CSCF" for short. The SBC and P-CSCF may be collocated, and may be referred to as "SBC/P-CSCF" for short. The EPC may include a packet data network gateway (PGW), a Serving Gateway (SGW), and a Mobile Management Entity (MME). The PGW and the SGW may be combined together, and may be referred to as "SGW/PGW" for short.

The above network elements are all corresponding network elements in the wireless communication network in the prior art, and are not described in detail here, but only briefly described. For example: the S-CSCF may be used for registration, authentication control, session routing and service trigger control of the user and to maintain session state information. The I-CSCF may be used for assignment and querying of S-CSCFs for user registrations. The P-CSCF may be used as a proxy for signaling and messages. The HSS may be used to store subscriber subscription information and location information. SBCs may provide secure access and media handling. The MMTel AS provides basic services and supplementary services of the multimedia telephone. The MME is the core device of the EPC network. The SGW may be used for connection of the IMS core network to the wireless network, and the PGW may be used for connection of the IMS core network to the IP network.

The calling and called IMS domain core networks may further include: an open screen video server, or a polyphonic ringtone (CAT) server. The calling side can be provided with an open screen video server, and the called side can also be provided with the open screen video server. The open screen video server can be used as an independent network element, can also be combined with a calling side color ring server or a called side color ring server, or can be combined with other network elements, such as intelligent network equipment and the like.

The open screen video server is used for providing open screen video for the calling terminal in the blank time before the IMS core network plays the calling color ring or the called color ring or the notification sound to the calling terminal after the calling terminal initiates a call. The time for playing the screen-open video can last for several seconds until the screen-open video server receives the called IMS domain early media playing negotiation message, and then the screen-open video can be stopped from being played. The early media playback negotiation can be the negotiation of basic ring back tone, audio and video color ring back tone, failure notification tone, etc.

The color ring server provides the media playing of the audio and video color ring for the user. If the open screen video server and the color ring server are combined, the color ring server provides the function of playing the open screen video and then can play the color ring of the video.

The calling terminal and the called terminal are devices with wireless transceiving functions, can be deployed on land, and comprise indoor or outdoor, handheld or vehicle-mounted terminals; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). Specifically, the terminal device may be a terminal device (terminal device) capable of accessing a mobile network, a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like. .

It should be noted that the above description does not limit the system architecture diagram of the embodiment of the present invention, including but not limited to the system architecture diagram shown in fig. 1.

Applied to the system shown in fig. 1, an embodiment of the present invention provides a method for call processing. The screen-opening video server is independently arranged and provides screen-opening video, and the screen-opening video server can be in a calling IMS domain or a called IMS domain. And if the calling user signs the screen-opening video service, the screen-opening video server of the calling side provides the screen-opening polyphonic ringtone. And if the called party signs the screen-opening video service, the screen-opening video server on the called side provides the screen-opening polyphonic ringtone. In the following example, it is assumed that a calling user signs a contract for an open screen video service, and a called user signs a contract for a color ring back tone service, then the open screen video server at the calling side plays an open screen video to the calling terminal after receiving a call request, and then stops playing the open screen video after the called terminal rings and the open screen video server receives a media update message, and the color ring back tone server at the called side plays an audio/video color ring back tone to the calling terminal. The specific steps are shown in fig. 2, and some network elements through which signaling interaction passes in the figure are not shown, such as SGW/PGW, SBC/P-CSCF, I-CSCF/S-CSCF, etc., for simplicity and understanding of description. The method specifically comprises the following steps.

201, the video server on screen receives the INVITE message sent by the calling terminal a. If a calling user signs an open screen video service iFC (initial Filter criteria), the INVITE message is sent to an open screen video server of a calling side by core network equipment (such as S-CSCF) of the calling side. The INVITE message carries sdp (session Description protocol) information of the calling terminal a.

202, after receiving the initial INVITE, the open screen video server judges that the calling terminal supports playing video, and then starts media negotiation with the calling terminal. It can be determined that the calling terminal supports playing video by carrying a "video" tag or video origination through a contact header field in the INVITE message. And the screen-opening video server simulates the SDP of the called terminal b to perform media negotiation with the calling terminal a through 183 messages.

203, the open screen video server receives the acknowledgement message prack (visual Response acknowledgement) for the 183 message returned by the calling terminal.

And 204, returning a 200 response message to the PRACK message to the calling terminal by the screen-opening video server.

The screen-on video server can further judge whether the calling terminal starts the Precondition process, if the Precondition process is started, the update message and the 200 message are also added in the process of carrying out media negotiation between the screen-on video server and the calling terminal. The Precondition flow is a resource reservation mechanism, which ensures enough bandwidth to continue the call, thereby avoiding ghost ringing. In addition, the media port exchange is completed before the connection, so that the instant voice call drop of the response is avoided.

205, the video server sends an update message to the calling terminal, where the update message carries the audio/video media SDP of the video server.

206, the video server receives 200 messages replied by the calling terminal, wherein the messages carry the SDP of the calling terminal.

And judging according to the SDP of the calling terminal, and if the calling terminal supports video playing, playing a section of screen-opening video content for the calling by the screen-opening video server. The on-screen video content may be determined according to the characteristics of the calling party, for example, the on-screen video content may be determined according to the characteristics of the number, priority, geographical location, age, and the like of the calling party. The open screen video content may also be a public class of video content designated by an operator, such as education, security, reminders, advertisements, and the like.

211, after receiving the initial INVITE message in step 201, the open screen video server may forward the INVITE message to the called terminal, and continue the called terminal. If the called user signs the color ring service iFC, the INVITE message is sent to the color ring server of the called side first, and then the color ring server forwards the color ring server to the called terminal.

212, the screen-opening video server receives 183 message returned by the called terminal, the message carries the SDP of the called terminal b.

213, the video server sends an acknowledgement message prack (provisionalresponse acknowledgement) for the 183 message.

214, the screen-opening video server receives a 200 response message to the PRACK message returned by the called terminal.

Therefore, the screen-opening video server simulates the response of the calling terminal through the message and carries out media negotiation with the called terminal.

The video server performs the above-mentioned process of simulating the media negotiation between the calling terminal and the called terminal, i.e. step 211 and step 214, and can perform parallel processing with the process of negotiating to play the video on screen in step 202 and step 206.

221, the color ring server receives the 180 ringing message replied by the called terminal. The called terminal is in idle state and can ring.

222, after receiving the ringing message, the color ring server sends an update media update message to the calling terminal, wherein the message carries an audio/video color ring SDP. The update message is first forwarded to the on-screen video server.

223, after receiving the update media update message, the screen-on video server stops playing the screen-on video first, and then forwards the update message to the calling terminal.

224, the video server receives 200 response message from the calling terminal, wherein the 200 response message carries the calling SDP information.

225, the screen-opening video server forwards the received 200 messages to the color ring server.

226, after receiving 200 response message replied by the calling terminal, the color ring server plays audio and video color ring for the calling terminal and forwards 180 ringing message to the calling terminal. The played color ring back tone usually selects corresponding content according to the setting of the called user.

After the called terminal rings and the calling terminal plays the color ring, if the called user picks up the phone, the calling and called parties negotiate the conversation, and the process is briefly described as follows.

231, the color ring server receives the 200OK message replied by the called terminal after the called user goes off-hook.

232, the color ring server stops playing the color ring to the calling terminal and replies an ACK message to the called terminal.

233, the color ring server sends a re-INVITE request to the called terminal.

234, the color ring server receives 200 response message of the called terminal to the re-INVITE message response, wherein the media capability SDP of the called terminal b is carried.

235, the color ring server sends update media update message to the calling terminal, wherein the media update message carries the media capability SDP of the called terminal b.

236, the color ring server receives the 200OK message returned by the calling terminal responding to the update media update message, wherein the 200OK message carries the SDP information of the calling responding to the media update message.

237, the color ring server forwards the called off-hook 200OK message received in step 231 to the calling terminal.

238, the color ring server receives the ACK message from the calling terminal.

239, the color ring server returns re-INVITE ACK message to the called terminal, wherein the SDP information in step 236 is carried.

Then the calling party and the called party establish a conversation.

The embodiment of the method shown in fig. 2 provides the video content displayed at the time of the initial call for the calling terminal, improves the user experience, and makes full use of the network resources. If the on-screen video is provided by the caller-side IMS domain, the on-screen video content can generally be provided to the caller more quickly.

The embodiment of the present invention also provides a method for processing a call, which is applied to the system shown in fig. 1. The screen-opening video server and the color ring server are arranged on the called side in a closed mode, and the color ring server on the called side can provide a screen-opening video function. In the embodiment, the called user signs a screen-opening video service and a color ring service, the color ring server firstly plays a screen-opening video to the calling terminal after receiving the call request, then stops playing the screen-opening video after the called terminal rings, and plays an audio-video color ring to the calling terminal. The specific steps are as shown in fig. 3, and some network elements through which signaling interaction passes in the figure are not shown, such as SGW/PGW, SBC/P-CSCF, I-CSCF/S-CSCF, etc., for simplicity and understanding. The method specifically comprises the following steps.

301, the color ring server receives the INVITE message sent by the calling terminal a. If the called user signs the open screen video service iFC (initial Filter criteria) (which can be shared with the color ring service iFC), the INVITE message sends the core network equipment (such as S-CSCF) of the called side to the color ring server. The INVITE message carries sdp (session Description protocol) information of the calling terminal a.

And 302, after receiving the initial INVITE, the color ring server judges that the calling terminal supports playing the video, and then starts media negotiation with the calling terminal. It can be determined that the calling terminal supports playing video by carrying a "video" tag or video origination through a contact header field in the INVITE message. The polyphonic ringtone server simulates SDP of the called terminal b to perform media negotiation with the calling terminal a through 183 messages.

303, the color ring server receives the acknowledgement message prack (visual Response acknowledgement) of the 183 message returned by the calling terminal.

304, the color ring server returns 200 response messages to the PRACK messages to the calling terminal.

Similarly, the color ring server can further judge whether the calling terminal starts the Precondition process, if the Precondition process is started, the update message and the 200 message are also added in the process of the media negotiation between the color ring server and the calling terminal.

305, the color ring server sends an update message to the calling terminal, wherein the update message carries the audio and video media SDP of the color ring server.

306, the polyphonic ringtone server receives the 200 messages replied by the calling terminal, wherein the SDP of the calling terminal is carried in the messages.

And judging according to the SDP of the calling terminal, if the calling terminal supports video playing, the color ring server plays a section of screen-opening video content for the calling terminal. The video content may be determined by policy, such as caller information selection of content of interest to the caller, or security, educational, reminder, advertising type video content.

311, after receiving the initial INVITE message in step 301, the color ring server may forward the INVITE message to the called terminal, and continue the called terminal.

312, the polyphonic ringtone server receives 183 message returned by the called terminal, and the message carries the SDP of the called terminal b.

313, the color ring server sends a confirmation message PRACK to the 183 message.

314, the color ring server receives 200 response messages to the PRACK messages returned by the called terminal.

Thus, the color ring server simulates the response of the calling terminal through the message and carries out media negotiation with the called terminal.

The polyphonic ringtone server performs the process of simulating the media negotiation between the calling terminal and the called terminal, namely step 311 and step 314, and can perform parallel processing with the process of negotiating to play the screen-up video in the previous step 302 and step 306.

321, the polyphonic ringtone server receives the 180 ringing message replied by the called terminal. The called terminal is in idle state and can ring.

326, after receiving the ringing message, the color ring server stops playing the open screen video, then plays the audio/video color ring for the calling terminal, and forwards 180 ringing messages to the calling terminal. The played color ring back tone usually selects corresponding content according to the setting of the called user.

331, the color ring server receives the 200OK message replied by the called terminal after the called user goes off-hook.

332, the color ring server stops playing the color ring to the calling terminal and replies an ACK message to the called terminal.

333, the color ring server sends re-INVITE request to the called terminal.

334, the color ring server receives the 200 response message of the called terminal to the re-INVITE message, wherein the media capability SDP of the called terminal b is carried.

335, the color ring server sends update media update message to the calling terminal, wherein the media update message carries the media capability SDP of the called terminal b.

336, the color ring server receives the 200OK message returned by the calling terminal responding to the update media update message, wherein the 200OK message carries the SDP information of the calling responding to the media update message.

337, the color ring server forwards the called off-hook 200OK message received in step 331 to the calling terminal.

338, the color ring server receives the ACK message replied by the calling terminal.

339, the color ring server returns re-INVITE ACK message to the called terminal, which carries the SDP information in step 336.

Then the calling party and the called party establish a conversation.

In the method shown in fig. 3, the on-screen video content and the audio-video polyphonic ringtone may be the same content, that is, the audio-video polyphonic ringtone may be played in advance, so that network resources are further fully utilized, and user experience is improved.

Specifically, the content of the open-screen video played by the color ring server after the step 306 is the audio/video color ring; after receiving the ringing message, the color ring server in step 326 continues to play the audio/video color ring for the calling terminal without stopping playing the audio/video color ring, and forwards 180 ringing messages to the calling terminal.

The embodiment of the present invention further provides a schematic structural diagram of a video server, as shown in fig. 4, including a communication unit 401 and a processing unit 402; wherein:

the communication unit is used for receiving a call request sent by a calling terminal;

the processing unit is used for carrying out media negotiation with the calling terminal and playing the open-screen video content;

the communication unit is also used for receiving the information of the early media playing negotiation, and the processing unit is also used for stopping playing the screen-opening video after the communication unit receives the information of the early media playing negotiation.

Further, these units implement the related functions in the foregoing method, and are not described again.

In this embodiment, the video server is presented in the form of a functional unit. An "element" may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. In a simple embodiment, one skilled in the art will recognize that the video server may be implemented using a processor, memory, and a communication interface.

The video server in the embodiment of the present invention may also be implemented in the form of a computer device (or system) in fig. 5. Fig. 5 is a schematic diagram of a computer device according to an embodiment of the present invention. The computer device comprises at least one processor 501, a communication bus 502, a memory 503 and at least one communication interface 504, and may further comprise an IO interface 505.

The processor may be a general purpose Central Processing Unit (CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits configured to control the execution of programs in accordance with the inventive arrangements.

The communication bus may include a path that transfers information between the aforementioned components. The communication interface may be any device, such as a transceiver, for communicating with other devices or communication Networks, such as ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.

The Memory may be, but is not limited to, a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be self-contained and coupled to the processor via a bus. The memory may also be integral to the processor.

Wherein the memory is used for storing application program codes for executing the scheme of the invention and is controlled by the processor to execute. The processor is configured to execute application program code stored in the memory.

In particular implementations, the processor may include one or more CPUs, each of which may be a single-Core (si — Core) processor or a multi-Core (multi-Core) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

In particular implementations, the computer device may also include an input/output (I/O) interface, as one embodiment. For example, the output device may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device may be a mouse, a keyboard, a touch screen device or a sensing device, etc.

The computer device may be a general purpose computer device or a special purpose computer device. In a specific implementation, the computer device may be a desktop computer, a laptop computer, a web server, a Personal Digital Assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, an embedded device, or a device with a similar structure as in fig. 5. The embodiment of the invention does not limit the type of the computer equipment.

The on-screen video server as in fig. 1 may be the device shown in fig. 5, with one or more software modules stored in memory. The open screen video server may implement the software module by a processor and program code in memory to accomplish the above method.

Embodiments of the present invention also provide a computer storage medium for storing computer software instructions for the apparatus shown in fig. 4 or fig. 5, which includes a program designed to execute the above method embodiments. The above method can be implemented by executing a stored program.

The embodiment of the present invention further provides a structural schematic diagram of a color ring server, as shown in fig. 6, including a communication unit 601 and a processing unit 602; wherein:

the communication unit is also used for receiving a ringing message of the called terminal, and the processing unit is also used for stopping playing the screen-opening video after the communication unit receives the ringing message of the called terminal;

the processing unit is also used for playing the audio and video color ring to the calling terminal.

In this embodiment, the color ring server is presented in the form of a functional unit. An "element" may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. In a simple embodiment, it will be appreciated by those skilled in the art that the color ring server may be implemented using a processor, a memory, and a communication interface.

The color ring back tone server in the embodiment of the present invention may also be implemented in a manner of a computer device (or system) in fig. 7. Fig. 7 is a schematic diagram of a computer device according to an embodiment of the present invention. The computer device comprises at least one processor 701, a communication bus 702, a memory 703 and at least one communication interface 704, and may further comprise an IO interface 705.

The computer device may be a general purpose computer device or a special purpose computer device. In a specific implementation, the computer device may be a desktop computer, a laptop computer, a web server, a Personal Digital Assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, an embedded device, or a device with a similar structure as in fig. 7. The embodiment of the invention does not limit the type of the computer equipment.

The color ring server shown in fig. 1 may be the device shown in fig. 7, and one or more software modules are stored in the memory. The polyphonic ringtone server can realize a software module through a processor and program codes in a memory to complete the method.

Embodiments of the present invention also provide a computer storage medium for storing computer software instructions for the apparatus shown in fig. 6 or fig. 7, which includes a program designed to execute the above method embodiments. The above method can be implemented by executing a stored program.

The embodiment of the present invention further provides a schematic structural diagram of a terminal device, as shown in fig. 8, including a communication unit 801 and a processing unit 802; wherein:

a communication unit for initiating a call request to a called terminal;

and the processing unit is used for carrying out media negotiation with the network equipment and receiving the video content, and carrying out media negotiation with the network equipment and receiving the audio and video polyphonic ringtone.

In this embodiment, the terminal device is presented in the form of a functional unit. An "element" may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. In a simple embodiment, the terminal device may be implemented using a processor, a memory, and a communication interface, as will be appreciated by those skilled in the art.

The terminal device in the embodiment of the present invention may also be implemented in the form of a computer device (or system) in fig. 9. Fig. 9 is a schematic diagram of a computer device according to an embodiment of the present invention. The computer device comprises at least one processor 901, a communication bus 902, a memory 903 and at least one communication interface 904, and may further comprise an IO interface 905.

The computer device may be a general purpose computer device or a special purpose computer device. In a specific implementation, the computer device may be a desktop computer, a laptop computer, a web server, a Personal Digital Assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, an embedded device, or a device with a similar structure as in fig. 9. The embodiment of the invention does not limit the type of the computer equipment.

The terminal device as in fig. 1 may be the device shown in fig. 9, with one or more software modules stored in the memory. The terminal device may implement the software module by a processor and program code in a memory to perform the above method.

Embodiments of the present invention also provide a computer storage medium for storing computer software instructions for the apparatus shown in fig. 8 or 9, which includes a program designed to execute the method embodiments. The above method can be implemented by executing a stored program.

While the invention has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. A computer program stored/distributed on a suitable medium supplied together with or as part of other hardware, may also take other distributed forms, such as via the Internet or other wired or wireless telecommunication systems.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While the invention has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations thereof are possible. Accordingly, the specification and figures are merely exemplary of the invention as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A call processing method applied to a video server includes:

receiving a call request sent by a calling terminal;

carrying out media negotiation with a calling terminal and sending video content;

and stopping sending the video content when receiving the information of the early media playing negotiation.

2. The method of claim 1, wherein the media negotiation with the calling terminal comprises:

the video server determines that the calling terminal supports playing the video according to the field contained in the call request;

and sending a media updating message to the calling terminal, wherein the media updating message carries the audio and video capability description information of the video server.

3. The method of claim 1 or 2, wherein the early media playback negotiation comprises a basic ring back tone negotiation, an audio-video color ring back tone negotiation, or a failed notification tone negotiation.

4. A method according to any of claims 1-3, wherein the calling subscriber has subscribed to a video service, and wherein the video server is located in the calling IMS domain; or the called user signs a video service, and the video server is located in the called IMS domain.

5. A method according to any of claims 1-4, wherein the video content is determined based on characteristics of the calling user.

6. The method of any one of claims 1-5, further comprising:

and the video server simulates the response of the calling terminal and carries out media negotiation with the called terminal.

7. The method of any one of claims 1-6, further comprising: and the video server transmits a message when the color ring server and the calling terminal perform color ring play negotiation.

8. A call processing method is applied to a color ring server, and comprises the following steps:

receiving a call request sent by a calling terminal;

stopping sending the video content when receiving the ringing message of the called terminal;

and playing the audio and video color ring to the calling terminal.

9. The method of claim 8, wherein the media negotiation with the calling terminal comprises:

the color ring server determines that the calling terminal supports playing video according to the field contained in the call request;

and sending a media updating message to the calling terminal, wherein the media updating message carries the audio and video capability description information of the color ring server.

10. A method according to claim 8 or 9, wherein the video content is determined in dependence on the characteristics of the calling subscriber.

11. A video server, comprising a communication unit and a processing unit, wherein:

the processing unit is used for carrying out media negotiation with the calling terminal and sending video content;

the communication unit is also used for receiving the information of the early media playing negotiation, and the processing unit is also used for stopping sending the video content after the communication unit receives the information of the early media playing negotiation.

12. The video server of claim 11, wherein the processing unit performing media negotiation with the calling terminal specifically comprises:

the processing unit determines that the calling terminal supports playing video according to the field contained in the call request;

and sending a media updating message to the calling terminal through the communication unit, wherein the media updating message carries the audio and video capability description information of the video server.

13. The video server of claim 11 or 12, wherein the early media playback negotiation comprises a basic ringback tone negotiation, an audio-visual ringback tone negotiation, or a failed announcement negotiation.

14. The video server according to any of claims 11-13, wherein the video server is located in a calling IMS domain, for handling a calling user's subscription to a video service; or, the video server is located in the called IMS domain and is used for processing the video service signed by the called user.

15. A video server according to any of claims 11-14, wherein the video content is determined based on characteristics of a calling subscriber.

16. The video server of any of claims 11-15, further comprising:

the processing unit is also used for simulating the response of the calling terminal and carrying out media negotiation with the called terminal.

17. The video server of any of claims 11-16, further comprising: the communication unit is also used for forwarding the message when the color ring server and the calling terminal perform color ring play negotiation.

18. A color ring server is characterized by comprising a communication unit and a processing unit, wherein:

the communication unit is also used for receiving a ringing message of the called terminal, and the processing unit is also used for stopping sending the video content after the communication unit receives the ringing message of the called terminal;

and the processing unit is also used for sending the audio and video color ring to the calling terminal.

19. The CRBT server of claim 18, wherein the media negotiation between the processing unit and the calling terminal comprises:

and sending a media updating message to the calling terminal through the communication unit, wherein the media updating message carries the audio and video capability description information of the polyphonic ringtone server.

20. The color ring server according to claim 18 or 19, wherein the video content is determined according to the characteristics of the calling subscriber.

21. A call processing method is applied to a terminal device and comprises the following steps:

initiating a call request to a called terminal;

performing media negotiation with a network device and receiving video content;

and carrying out media negotiation with the network equipment and receiving the audio and video color ring.

22. A terminal device, comprising a communication unit and a processing unit, wherein:

the communication unit is used for initiating a call request to a called terminal;

the processing unit is used for performing media negotiation with the network equipment and receiving the video content, and performing media negotiation with the network equipment and receiving the audio and video color ring.

23. A call processing method is applied to a color ring server, and comprises the following steps:

receiving a call request sent by a calling terminal;

carrying out media negotiation with the calling terminal and playing audio and video color ring;

and when the ringing message of the called terminal is received, the audio-video color ring is continuously played to the calling terminal.

24. The method of claim 23, wherein the media negotiation with the calling terminal comprises:

25. A color ring server is characterized by comprising a communication unit and a processing unit, wherein:

the processing unit is used for carrying out media negotiation with the calling terminal and playing audio and video color ring;

the communication unit is also used for receiving the ringing message of the called terminal, and the processing unit is also used for continuing to play the audio-video color ring to the calling terminal after the communication unit receives the ringing message of the called terminal.

26. The CRBT server of claim 25, wherein the media negotiation between the processing unit and the calling terminal comprises: