/usr/share/man/man1/poff.wvdial.1.gz is in wvdial 1.61-4.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/pon.wvdial.1.gz
/usr/share/man/man1/pon.wvdial.1.gz