TMB and GPRS This topic has 0 replies, 1 voice, and was last updated 15 years, 4 months ago by TMB. Viewing 1 post (of 1 total) Author Posts 18th December 2008 at 16:10 #55081 TMBGuest Can any one explain do TMB effect data services. Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.