Hi all, Running a very recent version of asterisk and libss7, things seem mostly OK, being able to place and receive calls, but with many of the following errors logged: [Oct 30 07:40:10] ERROR[9194] chan_zap.c: !! Unable to handle SIG_NET_MNG messag e with H1 = 1 and H0 = 4 [Oct 30 07:40:10] ERROR[9194] chan_zap.c: Received error from mtp3 layer: -1 [Oct 30 07:40:29] ERROR[9195] chan_zap.c: Bad FCS! [Oct 30 07:40:34] ERROR[9194] chan_zap.c: !! Unable to handle SIG_NET_MNG messag e with H1 = 1 and H0 = 4 [Oct 30 07:40:34] ERROR[9194] chan_zap.c: Received error from mtp3 layer: -1 [Oct 30 07:40:52] ERROR[9194] chan_zap.c: HDLC Abort! [Oct 30 07:42:22] ERROR[9194] chan_zap.c: HDLC Abort! [Oct 30 07:42:36] ERROR[9195] chan_zap.c: !! Unable to handle SIG_NET_MNG messag e with H1 = 1 and H0 = 4 [Oct 30 07:42:36] ERROR[9195] chan_zap.c: Received error from mtp3 layer: -1 [Oct 30 07:42:45] ERROR[9194] chan_zap.c: HDLC Abort! [Oct 30 07:42:45] ERROR[9194] chan_zap.c: HDLC Abort! [Oct 30 07:43:08] ERROR[9195] chan_zap.c: Bad FCS! [Oct 30 07:43:53] ERROR[9194] chan_zap.c: HDLC Abort! [Oct 30 07:44:16] ERROR[9194] chan_zap.c: Error in write Unknown error 500[Oct 3 0 07:44:16] ERROR[9194] chan_zap.c: HDLC Abort! [Oct 30 07:44:16] ERROR[9195] chan_zap.c: Bad FCS! [Oct 30 07:44:16] ERROR[9195] chan_zap.c: Bad FCS! [Oct 30 07:44:16] ERROR[9194] chan_zap.c: HDLC Abort! [Oct 30 07:44:16] ERROR[9195] chan_zap.c: Error in write Unknown error 500[Oct 3 0 07:44:16] ERROR[9195] chan_zap.c: Bad FCS! Any ideas of what may be causing this? Thanks, Charl