we have some problems with asterisk coredumping. We are running 1.0.9 on an Linux Debian Sarge with 2.4.31 Kernel. Inside is an wct4xxp (4 E1s). We terminate: SIP => Asterisk => DSS1 (gdb) bt #0 0x4052c831 in q921_transmit_iframe (pri=0x401e0938, buf=0xbe5ff444, len=9, cr=1) at q921.c:384 #1 0x40532224 in q931_xmit (pri=0x401e0938, h=0xbe5ff444, len=9, cr=1) at q931.c:1848 #2 0x40532401 in send_message (pri=0x401e0938, c=0x82b1b50, msgtype=77, ies=0x4053e800) at q931.c:1888 #3 0x40532d83 in q931_release (pri=0x401e0938, c=0x82b1b50, cause=16) at q931.c:2141 #4 0x40532b2d in pri_disconnect_timeout (data=0x82b1b50) at q931.c:2092 #5 0x4052e355 in __pri_schedule_run (pri=0x8185620, tv=0xbe5ff90c) at prisched.c:97 #6 0x4052e3c0 in pri_schedule_run (pri=0x8185620) at prisched.c:109 #7 0x404f9d8d in pri_dchannel (vpri=0x4050f000) at chan_zap.c:7415 #8 0x400200ba in pthread_start_thread () from /lib/libpthread.so.0 is this a known problem and we should switch an other version? best regards Markus