The firewall, i.e. Check Point VSX R67 handles VoIP traffic (SIP, h323). At the time when VoIP traffic passes through the firewall, following crash might be observed:
vsx_1 cbsoopsd[2081]: [E] Using defaults from ksymoops -t elf32-i386 -a i386
vsx_1 cbsoopsd[2081]: [E] EIP: [<ee929810>]
vsx_1 cbsoopsd[2081]: [E] EFLAGS: 00000202
vsx_1 cbsoopsd[2081]: [E] eax: 00000004 ebx: 00000004 ecx: 80527f34 edx: 0000568c
vsx_1 cbsoopsd[2081]: [E] esi: ef1dbfd0 edi: e3f251c8 esp: ee929d43
vsx_1 cbsoopsd[2081]: [E] Call Trace: [<ee929d43>]
vsx_1 cbsoopsd[2081]: [E] [<ee92d312>]
vsx_1 cbsoopsd[2081]: [E] [<ee8e7fc7>]
vsx_1 cbsoopsd[2081]: [E] [<ee8e7f90>]
vsx_1 cbsoopsd[2081]: [E] Code: 90 90 90 90 90 90 90 <8b> 48 04 85
vsx_1 cbsoopsd[2081]: [E]
vsx_1 cbsoopsd[2081]: [E] >>EIP; ee929810 <[fwmod]cpas_tcp_timer_cancel_do+0/30> <=====
vsx_1 cbsoopsd[2081]: [E] Trace; ee929d43 <[fwmod]cpas_tcp_timer_cb+63/90>
vsx_1 cbsoopsd[2081]: [E] Trace; ee92d312 <[fwmod]cpas_timer+12/30>
vsx_1 cbsoopsd[2081]: [E] Trace; ee8e7fc7 <[fwmod]cptim_timer_expired+37/100>
vsx_1 cbsoopsd[2081]: [E] Trace; ee8e7f90 <[fwmod]cptim_timer_expired+0/100>
vsx_1 cbsoopsd[2081]: [E] Code; ee929809 <[fwmod]cpas_tcp_output_ex+14c9/14d0>
vsx_1 cbsoopsd[2081]: [E] 00000000 <_EIP>:
vsx_1 cbsoopsd[2081]: [E] Code; ee929809 <[fwmod]cpas_tcp_output_ex+14c9/14d0>
vsx_1 cbsoopsd[2081]: [E] 0: 90 nop
vsx_1 cbsoopsd[2081]: [E] Code; ee92980a <[fwmod]cpas_tcp_output_ex+14ca/14d0>
vsx_1 cbsoopsd[2081]: [E] 1: 90 nop
vsx_1 cbsoopsd[2081]: [E] Code; ee92980b <[fwmod]cpas_tcp_output_ex+14cb/14d0>
vsx_1 cbsoopsd[2081]: [E] 2: 90 nop
vsx_1 cbsoopsd[2081]: [E] Code; ee92980c <[fwmod]cpas_tcp_output_ex+14cc/14d0>
vsx_1 cbsoopsd[2081]: [E] 3: 90 nop
vsx_1 cbsoopsd[2081]: [E] Code; ee92980d <[fwmod]cpas_tcp_output_ex+14cd/14d0>
vsx_1 cbsoopsd[2081]: [E] 4: 90 nop
vsx_1 cbsoopsd[2081]: [E] Code; ee92980e <[fwmod]cpas_tcp_output_ex+14ce/14d0>
vsx_1 cbsoopsd[2081]: [E] 5: 90 nop
vsx_1 cbsoopsd[2081]: [E] Code; ee92980f <[fwmod]cpas_tcp_output_ex+14cf/14d0>
vsx_1 cbsoopsd[2081]: [E] 6: 90 nop
vsx_1 cbsoopsd[2081]: [E] Code; ee929810 <[fwmod]cpas_tcp_timer_cancel_do+0/30> <=====
vsx_1 cbsoopsd[2081]: [E] 7: 8b 48 04 mov 0x4(6.186156e+307ax),6.743291e-317cx <=====
vsx_1 cbsoopsd[2081]: [E] Code; ee929813 <[fwmod]cpas_tcp_timer_cancel_do+3/30>
vsx_1 cbsoopsd[2081]: [E] a: 85 00 test 6.186156e+307ax,(6.743291e-317ax)