Force Data Over Wi-Fi on the Bionic?

[thethreelaws]

My wife got the new iPhone 4s on the same night I got the Bionic. On her iPhone, we discovered a toggle setting switch that forces the phone to use Wi-Fi for all data communications (e-mail, texting, web browsing, etc) while still allowing phone calls over the mobile/cellular network.

I looked around in the settings on the Bionic, but all I could find are these...
a. toggle Wi-Fi on/off
b. toggle 3g/4g (Network Mode: CDMA/LTE or CDMA only)

Then when I asked about this kind of feature, the guy at Verizon store told me that the Bionic (or was it the Android OS?) does this automatically. He said that, if there is a Wi-Fi network available, and the phone has access to it already, then it will automatically use that instead of the mobile/cellular network for all data communication, and just use the mobile/cellular network for phone calls.

Is that true? If so, can you point me to documentation from Motorola or Google that states this plain and clear?

By the way, when I turn WiFi on, my phone's 'external' IP address >is< identified as the WiFi address (I know the LAN's WiFi subnet), and when WiFi is off, it is identified as a Verizon wireless mobile/cellular address. This would seem to suggest that the phone is using the WiFi connection exclusively for data communications while the WiFi adapter is on and connected to a WiFi network, but I would like some more assurance than just my educated guess.

Also, I have read threads here, and on this issue, I found this one where it is suggested that the Bionic will use whichever has a stronger signal (either WiFi or the mobile/cellular network) for data communication. Is that true? If so, is there a way to force it to use WiFi for data, and still allow calls via mobile/cellular network?

 

[thethreelaws]

Response from johngalt (which I will respond to after I get the rest of my 'Questions' threads created)...

Q10: First of all, look at Settings --> Battery & data manager --> Data Saver - enabling Data Saver then all those apps will use WiFi only and queue up requests until WiFi is available.

Furthermore, under Settings --> Battery & data manager --> Data delivery --> Social Applications you can also force all of your social media to use WiFi only for sync, and for the really hardcore, under rSettings --> Battery & data manager --> Data deliveryif you uncheck Data enabled, then you'll be only able to use WiFi.

However, The rep at VZW was partially right - you have to have access to a WiFi connection and be authenticated and connected to it before your BIONIC will start using WiFi over your cellular data plan.