Changsha Langshen Information Technology Co., Ltd.  

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Changsha Langshen Information Technology Co., Ltd. was established in 2009. For many years, the company has focused on the R&D of telephone voice middleware products and boasts extensive experience in CTI product development. Its core products include “UniMedia Telephone Voice Middleware,” “iSoftCall Softswitch Telephone Middleware,” and “iSoftCall Smart Telephone Terminal.” The company’s customers span across China as well as regions such as Southeast Asia and Africa, and it is committed to providing system integrators with rapid call center and voice product integration solutions. UniMedia Telephone Middleware The company’s R&D team has deep expertise in switches from manufacturers including Alcatel, Lucent, Nortel, Excel, and Avaya. Based on domestic switch manufacturers—represented by Keygoe switches from Shenzhen Dongjin Company, with Langshen serving as Dongjin’s designated overseas middleware partner—the team has developed the UniMedia middleware product, which offers high cost-effectiveness and powerful functionality. The product adopts an integrated-plus-distributed architecture. Since its launch, it has been widely recognized by users for its robust features and stability. Core technologies such as integrated graphical scripting for process customization and single-step process debugging and tracking have greatly facilitated partners’ rapid integration of telephone voice capabilities into their business systems. iSoftCall Telephone Middleware The iSoftCall telephone voice middleware and smart telephone terminals are based on the SIP softswitch model and utilize a unified interface with UniMedia. These products offer powerful functionality, especially the smart telephone terminals, which integrate embedded PCs, telephone gateways, and softswitch middleware into a router-sized device while retaining the full functionality of traditional call center products, thus providing customers with cost-effective, comprehensive telephone product solutions. The iSoftCall smart telephone terminals support the feature of “call handling locally, business processing in the cloud,” making them particularly suitable for integrating with SaaS-based business systems. Langshen’s product series has numerous successful cases across various industries, ranging from small board-card call centers and voice value-added platforms with several thousand lines, to SaaS cloud call centers and large-scale call center applications with nearly a thousand agent seats. This is especially true in scenarios requiring resilience against sudden surges in call volume.