Hotspot mode, disable all other data while using hotspot?

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http://forum.xda-developers.com – I was wondering if there was a way to disable inbound calls, mms, sms, sync etc.... while using your android as a hotspot. i use my hotspot in my car to provide wifi to another device, when i get a call or background app is syncing my wifi is interrupted. Any help with this is much appreciated. :) (HowTos)