This fixes an annoying, though harmless issue: if Asterisk decides to send
voicemail messages to a channel (CAS, configured as FXS), We can't do
anything useful with them. So ignore them to avoid scary-looking messages
(from report_bad_ioctl()).
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9505 a0bf4364-ded3-4de4-8d8a-66a801d63aff