Monaco became the first country in Europe to inaugurate a next-generation 5G mobile phone network based on technology from Chinese firm Huawei, which is seen by the US as a major security risk.
As mobile operators shift away from slower 3G and 4G networks, Europe has been torn over its approach to the Chinese giant, which is a pioneer in 5G technology.
移动运营商放弃了更慢的3G 和 4G网络，欧洲在对待开发了5G技术的这家中国巨头公司的态度上还存在争议。
Offering super-fast wireless access, 5G mobile networks offer much greater data transfer speeds.
In September, Monaco Telecom, which is owned by French billionaire Xavier Niel, signed an agreement with Huawei to make the tiny principality the first country in Europe fully covered by 5G.
"We are the first state to be entirely covered by a 5G network," said Monaco Telecom president Etienne Franzi at the inauguration ceremony.
"In Monaco, the 5G is the promise of a better quality of life for all and exceptional opportunities," added the principality's head of digital transition Frederic Genta.
For Huawei vice president Guo Ping, the rollout in Monaco is a major opportunity despite the small size of territory covered.
"It allows us to make a shop window in a number of areas, notably linking 5G development to this intelligent state.
"It can serve as a model for other operators and states," he added.