Why does everyone say that as long as the whole house is WiFi, there are signals everywhere in the house? Is it true?/You don't say.

Telecom's whole house WiFi can ensure that the signal in every corner of the home is stable. "Whole house WiFi" is a professional service product launched by Shanghai Telecom for all home users. Relying on the advantages of existing broadband services and the professional ability of the maintenance team, it provides home WiFi solutions for telecom home broadband users.