Interference This topic has 0 replies, 1 voice, and was last updated 10 years, 9 months ago by Mohamad Selim. Viewing 1 post (of 1 total) Author Posts 22nd February 2012 at 08:53 #67910 Mohamad SelimGuest What is interference? What is FDD and TDD? What is Erlang. Pls can any one help me by giving this definition … Thanks selim Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.