The phrase identifies a scenario the place the performance of constructing and receiving phone calls over a wi-fi web community on a cellular system using the Android working system is impaired or utterly non-functional. An occasion of this might be a consumer trying to position a name whereas related to a house or public Wi-Fi community, solely to seek out the decision failing or the function not activating regardless of being enabled within the system settings.
The right perform of this function is essential as a result of it permits people to take care of communication in areas with poor mobile sign energy, leveraging out there wi-fi web connections to finish calls. That is useful in each residential and industrial settings the place mobile protection could also be restricted, and it has develop into more and more related with the proliferation of wi-fi networks and the rising reliance on cellular communication. Its origins stem from the will to enhance name high quality and accessibility in areas underserved by conventional mobile infrastructure.