0.6 - 07.03.97
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add support for phonebook file

0.5 - 03.02.97
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rewrite from scratch: Use C instead of C++
no more options supported


0.4 - 01.12.95
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adapt to new isdninfo format of isdn4linux 0.7


0.3 - 25.08.95
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Option -i to get alternative info device than /dev/isdninfo
Add continuous output similar to top(1).
Wrote manpage