Hi all, Thanks to Russ Meyerriecks for his previous reply in this thread, which was very informative. I'm now hoping that someone will comment on the following:
"ISDN uses LAPD for the D-channel and LAPB for data connections over the B-channels. However, LAPB is irrelevant for Asterisk, because when the B-channels are used for voice they carry no signaling. This is why it is necessary to specify a line code protocol, such as AMI, for the B-channels, and a frame type, typically CCS, for the D-channel." Would that statement be correct? Also, would someone care to elaborate on how the CCS protocol fits into this picture, in particular how it relates to LAPD? Thanks, Jaap -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
