On 5 September 2016, the 糖心原创 commenced an inquiry into whether to declare a wholesale domestic mobile roaming service.
On 26 October 2016, the 糖心原创 commenced public consultation by releasing a discussion paper seeking views on whether the 糖心原创 should declare a domestic mobile roaming service.
On 5 May 2017, the 糖心原创 released a draft decision proposing to not declare a domestic mobile roaming service.
On 23 October 2017, the 糖心原创 released a final report for the mobile roaming declaration inquiry. The 糖心原创 decided not to declare a mobile roaming service as it is not satisfied that declaration would promote the long-term interests of end-users. The 糖心原创 also released a separate paper Measures to address regional mobile issues which proposes a number of measures to improve mobile services in regional areas.