Comment Re:Yes more reliable (Score 1) 101
And SMS is the most reliable because it involves the voice signaling channel and telephone companies are more or less required to reliably deliver them.
Not with newer phones; Verizon's new model phones all deliver SMS via the data network. That's why your texts are sent so much faster than they used to be, the phone doesn't have to deal with contention to secure a channel on the voice network just to send 140 bytes. Voice is going there too, see VoLTE. Eventually it's all just going to be packets. The carrier's voice and SMS services will get special QoS treatment but that's the only thing that will be special about them.