SAPI and SABM This topic has 1 reply, 1 voice, and was last updated 10 years, 10 months ago by Deepak. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 10th May 2012 at 18:06 #68215 DeepakGuest Hi Can anyone pls explain the function of SAPI and SABM in GSM protocol. 11th May 2012 at 14:11 #68216 DeepakGuest hi Pls anyone??? Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Telecom Design’ is closed to new topics and replies.