How about Beijing Ronglian Yitong Information Technology Co., Ltd.

Beijing Ronglian Yitong Information Technology Co., Ltd. is very good, especially in recent years, thanks to a large number of traditional government and enterprise customers, financial customers and other industries realizing the role of communication services in connecting customers and cooperating with companies. Ronglian's communication services basically cover all domestic and foreign products such as unified communication UC, cloud customer service and transportation contact center CC.

Beijing Ronglian Yitong Information Technology Co., Ltd. provides comprehensive communication services for corporate customers in a cloud and intelligent way. Including PaaS communication capabilities (voice, SMS, etc. ), CC (cloud customer service and cloud contact center), UC(IM instant messaging cloud, unified communication, video and conference), new communication solutions and "communication +AI" services in the industry help enterprises improve their communication experience and operational efficiency, and drive the enterprise communication industry in China to realize Internet, cloud computing, capability, integration and intelligence.

Ronglian is headquartered in Beijing and has branches in Shanghai, Guangzhou, Shenzhen, Wuhan, Chengdu, Hangzhou, Guiyang and Tokyo. At present, it has more than 1000 employees. Has dozens of patent applications and hundreds of software, and passed the software CMMI5 certification.