Regardless of what stands, it's pretty damn good at the moment. I have a pocket computer that talks to people all over the world. So I have two messaging apps on it? I'm not even bothered.
The thing is I don't actually really dial anyone with their phone number any more other than close family. Most of the time I will use whatsapp video calls because said other person is usually somewhere that roaming doesn't work and is tethered on a WiFi hotspot instead. Granted that uses name resolution via phone number but it doesn't need to.