Well, if you don't want to switch every now and than, you have to choose the way to communicate very carefully. To choose a solution with a closed source protocoll isn't very clever, if you want the freedom of choice, which platform you use.
If you don't care, than you have to eat what your provider offers you and all is fine.

I for myself decided, that I don't want to be dependent on the big players, so I'm very old school in my choice:
vis-a-vis, phonecalls, mail, irc and somtimes SMS.
No whatsthat, no skype, still alive, still friends.