reason for error indication cause This topic has 0 replies, 1 voice, and was last updated 12 years, 4 months ago by john. Viewing 1 post (of 1 total) Author Posts 26th December 2011 at 07:10 #67681 johnGuest reason for error indication cause “frame not implemented” is required for GSm Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.