#0  0x4026e571 in kill () from /lib/libc.so.6
#1  0x401f8701 in pthread_kill () from /lib/libpthread.so.0
#2  0x401f8a7b in raise () from /lib/libpthread.so.0
#3  0x4026e324 in raise () from /lib/libc.so.6
#4  0x4026f828 in abort () from /lib/libc.so.6
#5  0x402679af in __assert_fail () from /lib/libc.so.6
#6  0x406e3ca5 in mod_pjsip_telephone_type_from_sdp () from /usr/local/freeswitch/mod/mod_pjsip.so
#7  0x40703766 in inv_set_state (inv=0x888a00c, state=PJSIP_INV_STATE_DISCONNECTED, e=0xbefff884) at ../src/pjsip-ua/sip_inv.c:154
#8  0x407065b4 in inv_handle_bye_response (inv=0x888a00c, tsx=0x898d414, rdata=0x898d4e8, e=0xbefff884) at ../src/pjsip-ua/sip_inv.c:1776
#9  0x40707395 in inv_on_state_confirmed (inv=0x888a00c, e=0xbefff884) at ../src/pjsip-ua/sip_inv.c:2290
#10 0x40703b66 in mod_inv_on_tsx_state (tsx=0x898d414, e=0xbefff884) at ../src/pjsip-ua/sip_inv.c:345
#11 0x406fdbef in pjsip_dlg_on_tsx_state (dlg=0x8888c34, tsx=0x898d414, e=0xbefff884) at ../src/pjsip/sip_dialog.c:1494
#12 0x406fdebe in mod_ua_on_tsx_state (tsx=0x898d414, e=0xbefff884) at ../src/pjsip/sip_ua_layer.c:177
#13 0x406f7d29 in tsx_set_state (tsx=0x898d414, state=PJSIP_TSX_STATE_TERMINATED, event_src_type=PJSIP_EVENT_TIMER, event_src=0x898d4e8)
    at ../src/pjsip/sip_transaction.c:1035
#14 0x406f9643 in tsx_on_state_calling (tsx=0x898d414, event=0xbefff934) at ../src/pjsip/sip_transaction.c:1907
#15 0x406f7bd2 in tsx_timer_callback (theap=0x806f138, entry=0x898d4e8) at ../src/pjsip/sip_transaction.c:985
#16 0x4071c7f2 in pj_timer_heap_poll (ht=0x806f138, next_delay=0xbefff9cc) at ../src/pj/timer.c:502
#17 0x406efb50 in pjsip_endpt_handle_events2 (endpt=0x806eff4, max_timeout=0xbefffa1c, p_count=0x0) at ../src/pjsip/sip_endpoint.c:632
#18 0x406efca0 in pjsip_endpt_handle_events (endpt=0x806eff4, max_timeout=0xbefffa1c) at ../src/pjsip/sip_endpoint.c:687
#19 0x406e60ed in switch_module_runtime () from /usr/local/freeswitch/mod/mod_pjsip.so
#20 0x4002e7fc in switch_loadable_module_exec (thread=0x80669c8, obj=0x80667c0) at src/switch_loadable_module.c:73
#21 0x400942f0 in dummy_worker () from /usr/local/freeswitch/lib/libapr-1.so.0
#22 0x401f5df1 in pthread_start_thread () from /lib/libpthread.so.0
#23 0x4031a5fa in clone () from /lib/libc.so.6