Certification for GSM/UMTS/LTE Protocol This topic has 0 replies, 1 voice, and was last updated 10 years, 4 months ago by N.Selvakumar. Viewing 1 post (of 1 total) Author Posts 25th October 2012 at 05:11 #68666 N.SelvakumarGuest Hi, I just wanna know, is there any Global certification process for Protocol Stack engineers. As I am working for GSM & UMTS protocol stack development. I want to take some Global certifications in GSM or UMTS Protocol Stack. Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.