Does mobile phones (any kind of mobile phone?) use TCP/IP over radio signals for internet? I would also like to know if they use VoIP for telephony? Please tell me what they use, I'm confused.
closed as off topic by slhck♦, Mokubai, Journeyman Geek, Nifle, Sathya♦ Jan 21 '12 at 19:57
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Yes, mobile phones (mainly 3G/4G phones) use TCP/IP for transferring data (such as browsing the web, downloading apps, etc.)
As for the phone calls, those don't really use VoIP, but are more a function of the technology the carrier uses (Verizon uses CDMA (4G is LTE) and AT&T uses GSM).