SD Drop T200 Expired This topic has 1 reply, 1 voice, and was last updated 14 years, 5 months ago by Mak. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 2nd June 2010 at 11:23 #62978 MakGuest Why T200 timer Expired 2nd June 2010 at 11:24 #62979 MakGuest What could be the possible reasons of SD Drop regarding T200 timer. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Telecom Design’ is closed to new topics and replies.