Method and electronic device for implementing computer telephony integration

By establishing a pure signaling SIP dialogue without media INVITE requests in the SIP protocol as the CTI control channel, the problem of coupling between the control channel and the media channel is solved. This enables fully automatic lifecycle management of CTI sessions and unified distribution of multiple types of commands, reducing resource consumption and improving system stability.

CN122420447APending Publication Date: 2026-07-17XIAMEN XINGZONG DIGITAL TECH CO LTD
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Patent Information

Application Number
CN202610460038.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-09
Publication Date
2026-07-17

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Abstract

The application provides a method and an electronic device for realizing computer telephone integration, which comprises the following steps: establishing a media-free INVITE request by injecting a media negotiation skip flag in an INVITE session creation interface and filling a system state query XML document of a CTI protocol specification in an INVITE request body, wherein the media-free INVITE request does not carry an SDP media description; multiplexing the media-free INVITE request as the first step of a CTI handshake step, using a SIP session established by the media-free INVITE request as a CTI persistent control channel, and transmitting a CTI control instruction encoded by a CSTA XML in the SIP session through a SIP INFO method. By using the technical scheme, a persistent CTI control channel independent of a media stream can be established in a SIP protocol framework, complete decoupling of a control plane and a media plane is realized, and media resource overhead required for maintaining CTI monitoring in a no-call scenario is completely eliminated.
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