public async void CallCategory() { string option = await dialogService.CallCategory(); switch (option) { case "Servicio al cliente": if (await CheckPermissions()) { ContactPhone(AppResources.TitleCustomerServices, CustomerServices); } break; case "Atención médica": if (await CheckPermissions()) { ContactPhone(AppResources.TitleMedicalCare, MedicalCare); } break; default: break; } }