Rishon L’Tzion Rabbi Yitzchak Yosef Shlita feels that a rav who serves as the chief rabbi of a city should not have a non-kosher cellular telephone. The rav was addressing a kenos of dayanim and he requested that the participants should not bring non-kosher phones to the forum. The rav added that a dayan and rosh yeshiva are in the same category and they should not have a non-kosher phone.
Speaking about himself, the rav stated he does not even have a kosher mobile phone for he feels the mobile phones simply lead to bitul Torah.
The rav calls on kollelim to prohibit avreichim cellular telephones to the beis medrash, kosher or otherwise. At the very least, the phone must be turned off during limud Torah. The Rishon L’Tzion emphasized anyone with a non-kosher phone should not bother coming at all.
(YWN – Israel Desk, Jerusalem)