Package: vpim

"vpim" package binaries on Debian:

/usr/bin/ics-dump /usr/bin/ics-to-rss /usr/bin/itip /usr/bin/mutt-aliases-to-vcf /usr/bin/vcf-dump /usr/bin/vcf-to-ics /usr/bin/vcf-to-mutt

You may install this package on Debian with apt-get install vpim