tch This topic has 0 replies, 1 voice, and was last updated 12 years, 9 months ago by nagaraj.rg. Viewing 1 post (of 1 total) Author Posts 16th August 2010 at 15:19 #64022 nagaraj.rgGuest HI iam fresher in gsm can anyone explain me how a call is established in gsm Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.