This is related to the new Intel® WiFi Hotspot Assistant feature. It automatically connects the system to a nearby WiFi hotspot that is certified by DeviceScape’s Easy WiFi* network if no preferred networks are available.
It is not exactly part of Intel® Smart Connect Technology, it is a different feature; however, it may take advantage of Intel® Smart Connect (if the system supports it) by connecting periodically to such hotspot network from sleep (S3) to a low power state in order to check for updates at a user-configured time.
The following links provide additional information:
What is my gain for Intel PROset to call-home? Any documentations?
Is there a way to disable this feature?
Please refer to the articles linked above.