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公开(公告)号：US11457390B2
公开(公告)日：2022-09-27
申请号：US16999824
申请日：2020-08-21
Inventor： Yanzhang Lin , Zhibin Li , Lianchang Zhang
Abstract: The present disclosure discloses a method and a system for automatically resuming a call after network handover, and belongs to the field of network calls. In the method of the present disclosure, during a call between a first terminal and a second terminal, when the first terminal is handed over from a first network to a third network, the first terminal first stores call resources, then registers with a server through the third network, constructs a resume request, and sends the resume request to the second terminal via the server, and the second terminal resumes the call with the first terminal according to the resume request. The present disclosure can ensure communication stability after network handover of a communication device, thereby avoiding call interruption caused by the network handover during communication of the communication device.
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公开(公告)号：US11503164B2
公开(公告)日：2022-11-15
申请号：US17085561
申请日：2020-10-30
Inventor： Yanzhang Lin , Huirong Zhang , Xiaosheng Lin
IPC: H04M7/00 , H04M1/72505 , H04M3/42
Abstract: The present application discloses a media interaction method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster. Communication with a DECT host is established through a DECT network cluster constructed in advance, to obtain first account information allocated by the DECT host, and information of a first call request to call a second account is sent to the DECT host, so as to make a call to the second account in a first communication manner. If no Real-time Transport Protocol (RTP) from the second account is received, information of a second call request to call the second account is sent to the DECT host, so as to make a call to the second account in a second communication manner. Embodiments of the present disclosure can solve the technical problem of a communication failure and reduce a waiting time for communication, thereby achieving optimal Voice over Internet Protocol (VOIP) call experience.
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公开(公告)号：US20210083888A1
公开(公告)日：2021-03-18
申请号：US17025780
申请日：2020-09-18
Inventor： Yanzhang Lin , Wanjian Feng , Lianchang Zhang
Abstract: A DECT network clustering system and method. Sending, by a DECT host to a router, a multicast command that declares joining a specified multicast group; sending, by a DECT device to the router, a multicast probe message sent to a target multicast group; receiving, by the router, the multicast command and the multicast probe message, and sending, to the DECT host according to the multicast command, the multicast probe message; receiving, by the DECT host, the multicast probe message, and sending status declaration information to the DECT device in a point-to-point manner according to the multicast probe message; receiving, by the DECT device, the status declaration information, and initiating a TCP connection request to the DECT host in a point-to-point manner according to the status declaration information; and receiving, by the DECT host, the connection request from the DECT device, and establishing a TCP channel with the DECT device.
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公开(公告)号：US20250080462A1
公开(公告)日：2025-03-06
申请号：US18820384
申请日：2024-08-30
Inventor： Yanzhang Lin
IPC: H04L47/125 , H04L43/0852
Abstract: Provided are a dual-stack load balancing method, a service cluster host, and a VoIP system. The method includes: detecting a survival status of a link of a selected communication device, and quantities of communication devices and transmission delays under an IPv4 link and an IPv6 link in a current detection cycle; calculating data weights of first and second data fields based on identification information indicating a survival status of a current link, the quantities of communication devices, and the transmission delays; comparing the data weights of the first and second data fields, and selecting a link corresponding to a data field with a smaller data weight as a target link; and if a target link corresponding to the selected communication device is not the current link of the selected communication device in the detection cycle, switching a link connection of the selected communication device to another link.
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公开(公告)号：US11785058B2
公开(公告)日：2023-10-10
申请号：US17568668
申请日：2022-01-04
Inventor： Yanzhang Lin
IPC: H04L65/1096 , H04L65/1104 , H04L65/61
CPC classification number: H04L65/1104 , H04L65/1096 , H04L65/61
Abstract: Disclosed are a music playing method and device. A user device is used to control another user device, to realize a music on hold (playing music in a call-hold duration) function, which reduces interaction with a SIP server, thereby reducing load of the SIP server. Softswitch (i.e., switching SDP) is established between a second user device in need of the music on hold function and a media resource server by a first user device, to realize a P2P media link between the second user device and the media resource server, which saves broadband resources of the SIP server. Also, in a situation where the media resource server needs to be deployed in another network segment (i.e., the media resource server and the second user device are in two network segments), the P2P media link can avoid configuring an access permission to a router, thus being convenient for network environment deployment.
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Patent Agency Ranking
公开(公告)号：US11641582B2
公开(公告)日：2023-05-02
申请号：US17151096
申请日：2021-01-15
Inventor： Yanzhang Lin , Lianchang Zhang , Wanjian Feng
Abstract: An account registration method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster system includes: establishing communication with a DECT host through a DECT network cluster constructed in advance; receiving first account information allocated by the DECT host; initiating registration to a server according to the first account information, and obtaining a first registration result; sending the first registration result to the DECT host; if the first registration result is that the registration is successful, entering a first mode; if the first registration result is that the registration is not responded to, obtaining a second registration result fed back by the DECT host; if the second registration result is that the registration is successful, entering a second mode, where in the second mode, the DECT device sends SIP signaling to the DECT host so that the DECT host forwards the SIP signaling.
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公开(公告)号：US11502868B2
公开(公告)日：2022-11-15
申请号：US17025780
申请日：2020-09-18
Inventor： Yanzhang Lin , Wanjian Feng , Lianchang Zhang
Abstract: A DECT network clustering method includes sending, by a DECT host to a router, a multicast command that declares joining a specified multicast group; sending, by a DECT device to the router, a multicast probe message sent to a target multicast group; receiving, by the router, the multicast command and the multicast probe message, and sending, to the DECT host according to the multicast command, the multicast probe message; receiving, by the DECT host, the multicast probe message, and sending status declaration information to the DECT device; receiving, by the DECT device, the status declaration information, and initiating a TCP connection request to the DECT host in a point-to-point manner; and receiving, by the DECT host, the connection request from the DECT device, and establishing a TCP channel with the DECT device.
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公开(公告)号：US20220217183A1
公开(公告)日：2022-07-07
申请号：US17568668
申请日：2022-01-04
Inventor： Yanzhang Lin
IPC: H04L65/10 , H04L65/1096 , H04L65/61
Abstract: Disclosed are a music playing method and device. A user device is used to control another user device, to realize a music on hold (playing music in a call-hold duration) function, which reduces interaction with a SIP server, thereby reducing load of the SIP server. Softswitch (i.e., switching SDP) is established between a second user device in need of the music on hold function and a media resource server by a first user device, to realize a P2P media link between the second user device and the media resource server, which saves broadband resources of the SIP server. Also, in a situation where the media resource server needs to be deployed in another network segment (i.e., the media resource server and the second user device are in two network segments), the P2P media link can avoid configuring an access permission to a router, thus being convenient for network environment deployment.
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公开(公告)号：US20210219135A1
公开(公告)日：2021-07-15
申请号：US17151096
申请日：2021-01-15
Inventor： Yanzhang Lin , Lianchang Zhang , Wanjian Feng
Abstract: An account registration method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster system includes: establishing communication with a DECT host through a DECT network cluster constructed in advance; receiving first account information allocated by the DECT host; initiating registration to a server according to the first account information, and obtaining a first registration result; sending the first registration result to the DECT host; if the first registration result is that the registration is successful, entering a first mode; if the first registration result is that the registration is not responded to, obtaining a second registration result fed back by the DECT host; if the second registration result is that the registration is successful, entering a second mode, where in the second mode, the DECT device sends SIP signaling to the DECT host so that the DECT host forwards the SIP signaling.
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公开(公告)号：US20210136232A1
公开(公告)日：2021-05-06
申请号：US17085561
申请日：2020-10-30
Inventor： Yanzhang Lin , Huirong Zhang , Xiaosheng Lin
Abstract: The present application discloses a media interaction method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster. Communication with a DECT host is established through a DECT network cluster constructed in advance, to obtain first account information allocated by the DECT host, and information of a first call request to call a second account is sent to the DECT host, so as to make a call to the second account in a first communication manner. If no Real-time Transport Protocol (RTP) from the second account is received, information of a second call request to call the second account is sent to the DECT host, so as to make a call to the second account in a second communication manner. Embodiments of the present disclosure can solve the technical problem of a communication failure and reduce a waiting time for communication, thereby achieving optimal Voice over Internet Protocol (VOIP) call experience.
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