Imagine getting a call from Pope Francis and it going to voice mail. Rorate Caeli linked it, as well as the audio. En Español.
What are the nuns doing that they can’t answer [the phone]? I am Pope Francis, I wish to greet you in this end of the year, I will see if I can call you later. May God bless you!
I wouldn’t expect a call back, but I would be concerned about missing that first call. Not likely, as the Holy Father isn’t conversant in English, and I would probably need to listen to it an extra few times to make sure I wasn’t dreaming, then that I could perceive the message.
Curious how RC refers to the Petrine ministry of Pope Francis. I seriously doubt that they would recognize a “Ratzinger pontificate” or a “Wojtyla pontificate.” Needless to say, a fan club from that quarter, like this one, is not forthcoming.
And they talk about the cult of celebrity. Sheesh.
Catholic Sensibility 
Actually, RC has long affected the common Italian usage of papal surnames in this matter. They have referred to the Ratzinger pontificate and Pope Ratzinger, and Pope Wojtyla, et cet.