We are engaged in mobile business. What is the concept of intra-provincial diffusion and intra-provincial diffusion?

Intra-provincial roaming: refers to numbers from other cities in the province roaming to the local city.

Roaming within the province: refers to the roaming of local city numbers to other cities in the province.

Intra-provincial roaming refers to the charges incurred by taking a mobile phone number out of the city where the mobile phone number belongs. Starting from October 1, 2017, the cancellation of domestic long distance and roaming charges for mobile phones will be fully implemented.

Telephone Terminology

"Roaming" is a term commonly used by mobile phone users. It means that users of cellular mobile phones can continue to use their mobile phones in some other regions or countries when they leave their own region or country. The upper limit standard for domestic roaming call charges for mobile phones in my country is: the upper limit standard for prepaid services is 0.80 yuan/minute, and the upper limit standard for other services is 0.60 yuan/minute.

"Roaming" can only be done between domestic cities with compatible network standards and already connected to the Internet, or between regions or countries that have signed bilateral roaming agreements. Implementing the roaming feature is technically quite complex. First of all, the user's location must be recorded, and a profit settlement method must be established between operating companies.