(gdb) bt
#0  0x005465c2 in rdb_add_index () from /usr/lib/asterisk/modules/res_srtp.so
#1  0x00540751 in srtp_unprotect_rtcp () from /usr/lib/asterisk/modules/res_srtp.so
#2  0x0053ef5b in ast_srtp_unprotect (srtp=0x94d4bb0, buf=0xb3f73a60, len=0xb3f737e8, rtcp=1) at res_srtp.c:328
#3  0x00687ad2 in __rtp_recvfrom (instance=0xb47fb480, buf=0xb3f73a60, size=32768, flags=0, sa=0xb3f7ba60, rtcp=1)
    at res_rtp_asterisk.c:328
#4  0x00687b23 in rtcp_recvfrom (instance=0xb47fb480, buf=0xb3f73a60, size=32768, flags=0, sa=0xb3f7ba60)
    at res_rtp_asterisk.c:337
#5  0x0068d604 in ast_rtcp_read (instance=0xb47fb480) at res_rtp_asterisk.c:1637
#6  0x0068f307 in ast_rtp_read (instance=0xb47fb480, rtcp=1) at res_rtp_asterisk.c:1975
#7  0x0814ff83 in ast_rtp_instance_read (instance=0xb47fb480, rtcp=1) at rtp_engine.c:375
#8  0x041bfff3 in sip_rtp_read (ast=0xb402ffd0, p=0xb47f9ec8, faxdetect=0xb3f7bf54) at chan_sip.c:6839
#9  0x041c077c in sip_read (ast=0xb402ffd0) at chan_sip.c:6920
#10 0x080b07dd in __ast_read (chan=0xb402ffd0, dropaudio=0) at channel.c:3742
#11 0x080b2344 in ast_read (chan=0xb402ffd0) at channel.c:4083
#12 0x080bae2b in ast_generic_bridge (c0=0xb402ffd0, c1=0xb402dd90, config=0xb3f7d960, fo=0xb3f7ca58, rc=0xb3f7ca54)
    at channel.c:6463
#13 0x080bcf08 in ast_channel_bridge (c0=0xb402ffd0, c1=0xb402dd90, config=0xb3f7d960, fo=0xb3f7ca58, rc=0xb3f7ca54)
    at channel.c:6895
#14 0x080f3733 in ast_bridge_call (chan=0xb402ffd0, peer=0xb402dd90, config=0xb3f7d960) at features.c:3187
#15 0x00e84398 in dial_exec_full (chan=0xb402ffd0, data=0xb3f7fed8 "SIP/sip07/0041445633931:::,120,t", 
    peerflags=0xb3f7dd10, continue_exec=0x0) at app_dial.c:2633
#16 0x00e84d42 in dial_exec (chan=0xb402ffd0, data=0xb3f7fed8 "SIP/sip07/0041445633931:::,120,t") at app_dial.c:2733
#17 0x08130dc6 in pbx_exec (c=0xb402ffd0, app=0xb47cdf48, data=0xb3f7fed8 "SIP/sip07/0041445633931:::,120,t")
    at pbx.c:1399
#18 0x0813a086 in pbx_extension_helper (c=0xb402ffd0, con=0x0, context=0xb4030338 "macro-godial", exten=0xb4030388 "s", 
    priority=17, label=0x0, callerid=0xb4006c78 "0041325119692", action=E_SPAWN, found=0xb3f822ac, combined_find_spawn=1)
    at pbx.c:4074
#19 0x0813b8d8 in ast_spawn_extension (c=0xb402ffd0, context=0xb4030338 "macro-godial", exten=0xb4030388 "s", 
    priority=17, callerid=0xb4006c78 "0041325119692", found=0xb3f822ac, combined_find_spawn=1) at pbx.c:4566
#20 0x003ae405 in _macro_exec (chan=0xb402ffd0, data=0xb3f84d58 "godial,0041445633931,172.19.81.118:2177,0", exclusive=0)
    at app_macro.c:408
#21 0x003af674 in macro_exec (chan=0xb402ffd0, data=0xb3f84d58 "godial,0041445633931,172.19.81.118:2177,0")
    at app_macro.c:583
#22 0x08130dc6 in pbx_exec (c=0xb402ffd0, app=0xb4013ac0, data=0xb3f84d58 "godial,0041445633931,172.19.81.118:2177,0")
    at pbx.c:1399
---Type <return> to continue, or q <return> to quit---
#23 0x0813a086 in pbx_extension_helper (c=0xb402ffd0, con=0x0, context=0xb4030338 "macro-godial", exten=0xb4030388 "s", 
    priority=6, label=0x0, callerid=0xb4006c78 "0041325119692", action=E_SPAWN, found=0xb3f8725c, combined_find_spawn=1)
    at pbx.c:4074
#24 0x0813b8d8 in ast_spawn_extension (c=0xb402ffd0, context=0xb4030338 "macro-godial", exten=0xb4030388 "s", 
    priority=6, callerid=0xb4006c78 "0041325119692", found=0xb3f8725c, combined_find_spawn=1) at pbx.c:4566
#25 0x0813c260 in __ast_pbx_run (c=0xb402ffd0, args=0x0) at pbx.c:4664
#26 0x0813dd0e in pbx_thread (data=0xb402ffd0) at pbx.c:4975
#27 0x0818ed3a in dummy_start (data=0x94d6f88) at utils.c:971
#28 0x00270832 in start_thread () from /lib/libpthread.so.0
#29 0x00c00e0e in clone () from /lib/libc.so.6