Shofar on Rosh ha-Hashana over the Phone on Shabbat!?
One of the students of the Rav Shapira who perished in the Holocaust wrote a lengthy teshuva that went even a step farther then his rebbe. Rabbi Nata Shlomo Shlisil, hy”d (published in ירשת פליטה סימן י, a collection of teshuvot of the גדולים of Hungary who perished in the Shoah) argued in support of Rabbi Litvin that even the Shofar can be fulfilled over the telephone.
Rabbi Shlisil goes so far as to describe how you could have two non-Jews holding phones in different cities on Rosh ha-Shanna for the Shofar, or Shabbat for Kiddush. His analysis begins with trying to find a way for someone who is in jail to fulfill the Mitzva of Shofar. It appears that his teshuva was written in the midst of the Holocaust while Jews were in Concentration Camps. See this brief selection where he refers to the Jewish People struggling in jails, deserts and forests. You can feel the empathy of this great posek who is trying to help his fellow Jews fulfill Mitzvot. …