Some older Asterisk versions do not handle well the error message when poll is called on an unconfigured channel. The result would be constant __ast_read: No/unknown event '0' on timer for 'DAHDI/1-1'? messages from Asterisk. Signed-off-by: Shaun Ruffell <sruffell@digium.com> Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com> git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9937 a0bf4364-ded3-4de4-8d8a-66a801d63aff