04-29-2014, 02:17 PM
3G/LTE (pending phone model) - no WiMAX on iPhones
However, on Android the actual voice calls are through VOIP and the app is used (transparently) for placing the calls and SMS/texts. The Android phones have a custom ROM for this, so everything is transparent and embedded nicely to the user.
For the iPhone, unless there is jailbreaking involved (doubt it), then their app just might needed to be ran for making calls - just like, say, if you have Ooma home phone service (or any VOIP), you can run their app on your iPhone to make voice calls using the Ooma service and not your phone carrier's service.
However, on Android the actual voice calls are through VOIP and the app is used (transparently) for placing the calls and SMS/texts. The Android phones have a custom ROM for this, so everything is transparent and embedded nicely to the user.
For the iPhone, unless there is jailbreaking involved (doubt it), then their app just might needed to be ran for making calls - just like, say, if you have Ooma home phone service (or any VOIP), you can run their app on your iPhone to make voice calls using the Ooma service and not your phone carrier's service.