Thread 2 (Thread -1214772336 (LWP 2573)):
#0  0x001ce402 in __kernel_vsyscall ()
#1  0x009206d3 in poll () from /lib/libc.so.6
#2  0x080823a1 in ast_waitfor_nandfds (c=0xb797bae0, n=1, fds=0xb797baec, nfds=0, exception=0x0, outfd=0xb797bab4, ms=0xb797bae4)
    at channel.c:1939
#3  0x080828a0 in ast_waitfordigit_full (c=0x9e8bbc8, ms=403, audiofd=-1, cmdfd=-1) at channel.c:2051
#4  0x0808275e in ast_waitfordigit (c=0x9e8bbc8, ms=5000) at channel.c:2017
#5  0x0047aae6 in wait_a_bit (qe=0xb797bbc0) at app_queue.c:2704
#6  0x0047da29 in queue_exec (chan=0x9e8bbc8, data=0xb797df38) at app_queue.c:3491
#7  0x080c50db in pbx_exec (c=0x9e8bbc8, app=0x9e68b38, data=0xb797df38) at pbx.c:532
#8  0x080c8ffb in pbx_extension_helper (c=0x9e8bbc8, con=0x0, context=0x9e8bdec "default", exten=0x9e8be3c "700", priority=2, label=0x0, 
    callerid=0x9e93910 "4075836290", action=E_SPAWN) at pbx.c:1833
#9  0x080ca3dc in ast_spawn_extension (c=0x9e8bbc8, context=0x9e8bdec "default", exten=0x9e8be3c "700", priority=2, 
    callerid=0x9e93910 "4075836290") at pbx.c:2288
#10 0x080ca8ac in __ast_pbx_run (c=0x9e8bbc8) at pbx.c:2388
#11 0x080cb685 in pbx_thread (data=0x9e8bbc8) at pbx.c:2601
#12 0x0810af55 in dummy_start (data=0x9e85540) at utils.c:545
#13 0x009d03db in start_thread () from /lib/libpthread.so.0
#14 0x0092a26e in clone () from /lib/libc.so.6

Thread 3 (Thread -1214526576 (LWP 2455)):
#0  0x001ce402 in __kernel_vsyscall ()
#1  0x009206d3 in poll () from /lib/libc.so.6
#2  0x080823a1 in ast_waitfor_nandfds (c=0xb79b7870, n=1, fds=0x0, nfds=0, exception=0x0, outfd=0x0, ms=0xb79b7874) at channel.c:1939
#3  0x0808271d in ast_waitfor (c=0x9e96578, ms=22) at channel.c:2008
#4  0x0807f10b in ast_safe_sleep_conditional (chan=0x9e96578, ms=22, cond=0x7d585e <agent_cont_sleep>, data=0x9e35330) at channel.c:1120
#5  0x007db635 in __login_exec (chan=0x9e96578, data=0xb79b9f38, callbackmode=0) at chan_agent.c:2102
#6  0x007dbe12 in login_exec (chan=0x9e96578, data=0xb79b9f38) at chan_agent.c:2212
#7  0x080c50db in pbx_exec (c=0x9e96578, app=0x9e35000, data=0xb79b9f38) at pbx.c:532
#8  0x080c8ffb in pbx_extension_helper (c=0x9e96578, con=0x0, context=0x9e9679c "default", exten=0x9e967ec "701", priority=2, label=0x0, 
    callerid=0x9e8c3b0 "grandstream-jeff", action=E_SPAWN) at pbx.c:1833
#9  0x080ca3dc in ast_spawn_extension (c=0x9e96578, context=0x9e9679c "default", exten=0x9e967ec "701", priority=2, 
    callerid=0x9e8c3b0 "grandstream-jeff") at pbx.c:2288
#10 0x080ca8ac in __ast_pbx_run (c=0x9e96578) at pbx.c:2388
#11 0x080cb685 in pbx_thread (data=0x9e96578) at pbx.c:2601
#12 0x0810af55 in dummy_start (data=0x9e936b8) at utils.c:545
#13 0x009d03db in start_thread () from /lib/libpthread.so.0
#14 0x0092a26e in clone () from /lib/libc.so.6