asterisk-dahdi 1:13.18.3~dfsg-1ubuntu4 (ppc64el binary) in ubuntu bionic

 Asterisk is an Open Source PBX and telephony toolkit.
 .
 This package includes the DAHDI channel driver (chan_dahdi.so) and a number of
 other Asterisk modules that require DAHDI support. They will not be useful
 without kernel-level DAHDI support.
 .
 For more information about the Asterisk PBX, have a look at the Asterisk
 package.