First SABM This topic has 1 reply, 1 voice, and was last updated 11 years, 9 months ago by pix. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 13th November 2010 at 12:01 #64963 Reply USerGuest Hi What is First SABM message which used in Handover and Call Setup flows? 13th November 2010 at 21:00 #64964 Reply pixGuest hi sabm is just the ack of the UA message. UA + SABM = handshake of the LapDm. After those two messages, the layer 2 (lapdm) is established. for more info, google SABM + LapDm regards pix Author Posts Viewing 2 posts - 1 through 2 (of 2 total) Reply To: First SABM Your information: Name (required): Mail (will not be published) (required): You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: <a href="" title="" rel="" target=""> <blockquote cite=""> <code> <pre class=""> <em> <strong> <del datetime="" cite=""> <ins datetime="" cite=""> <ul> <ol start=""> <li> <img src="" border="" alt="" height="" width=""> Submit