en.Wedoany.com Reported - According to the latest information from the Network Security Management Office of the Shanghai Communications Administration, the bureau has organized four basic telecommunications operators—Shanghai Telecom, Shanghai Mobile, Shanghai Unicom, and Oriental Cable—to complete the city-wide 5G inter-network roaming deployment and system integration, in order to implement the Ministry of Industry and Information Technology's directive on accelerating the deployment of 5G inter-network roaming in emergency scenarios.
On June 16, He Feng, a member of the Party Leadership Group and Deputy Director of the Shanghai Communications Administration, led a joint effort with the Shanghai Emergency Management Bureau to conduct full-scenario business testing of 5G inter-network roaming. The tests covered voice, data, and SMS services for both roaming into and out of other networks, with all indicators meeting standards.
5G inter-network roaming is a key initiative by the Ministry of Industry and Information Technology to promote high-quality 5G development and deepen network resource sharing. This feature allows users, without changing their SIM card, phone number, or performing any additional operations, to automatically and seamlessly connect to another operator's 5G network when their own operator's 5G signal is unavailable or interrupted, enabling normal use of voice calls, video calls, SMS, data, and other full-category services, effectively filling network coverage gaps.
The deployment and testing of 5G inter-network roaming for Shanghai's emergency scenarios took over two months. The four operators—Shanghai Telecom, Shanghai Mobile, Shanghai Unicom, and Oriental Cable—followed national unified technical standards to complete the transformation and integration of all aspects, including core networks, base stations, signaling links, and billing and settlement systems, establishing a city-wide collaborative 5G inter-network roaming network architecture covering disaster-prone areas. In emergency scenarios such as extreme weather or unexpected incidents, this system can quickly provide cross-network communication support.
Next, the Shanghai Communications Administration will continue to lead efforts in subsequent pilot operations, service optimization, and regulatory assurance, guiding operators to deepen cooperation, fully leverage the enabling role of 5G infrastructure, strengthen the security foundation of the information and communication industry, and safeguard the construction of Shanghai's "five centers."
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