#0  0x08133ac4 in ast_rtp_lookup_code (rtp=0x1, isAstFormat=1, code=256) at rtp.c:1634
1634		if (isAstFormat == rtp->rtp_lookup_code_cache_isAstFormat &&
(gdb) bt full
#0  0x08133ac4 in ast_rtp_lookup_code (rtp=0x1, isAstFormat=1, code=256) at rtp.c:1634
	pt = 256
#1  0x08132137 in bridge_p2p_rtp_write (rtp=0x84c8d30, rtpheader=0x84c8db4, len=32, hdrlen=12) at rtp.c:1038
	bridged = (struct ast_rtp *) 0x1
	res = 0
	payload = 18
	bridged_payload = 0
	version = 2
	padding = 0
	mark = 0
	ext = 0
	rtpPT = {isAstFormat = 1, code = 256}
	seqno = 16936
	__PRETTY_FUNCTION__ = "bridge_p2p_rtp_write"
#2  0x08138505 in p2p_rtp_callback (id=0x8492620, fd=59, events=1, cbdata=0x84c8d30) at rtp.c:2846
	res = 32
	hdrlen = 12
	sin = {sin_family = 2, sin_port = 10293, sin_addr = {s_addr = 2753690431}, sin_zero = "\000\000\000\000\000\000\000"}
	len = 16
	header = (unsigned int *) 0x84c8db4
	rtp = (struct ast_rtp *) 0x84c8d30
	__PRETTY_FUNCTION__ = "p2p_rtp_callback"
#3  0x08112083 in ast_io_wait (ioc=0x83fa320, howlong=116) at io.c:279
	res = 1
	x = 1
	origcnt = 13
#4  0x00b76fcd in do_monitor (data=0x0) at chan_sip.c:14866
	res = 116
	sip = (struct sip_pvt *) 0x0
	peer = (struct sip_peer *) 0x0
	t = 1166115838
	fastrestart = 0
	lastpeernum = -1
	curpeernum = 8
	reloading = 0
	__PRETTY_FUNCTION__ = "do_monitor"
#5  0x0815cd31 in dummy_start (data=0x83fe478) at utils.c:545
	_buffer = {__routine = 0x80d9e95 <ast_unregister_thread>, __arg = 0xcdcbb0, __canceltype = 0, __prev = 0x0}
	ret = (void *) 0x0
	a = {start_routine = 0xb76a62 <do_monitor>, data = 0x0, 
  name = 0x83fd790 "do_monitor", ' ' <repeats 11 times>, "started at [14925] chan_sip.c restart_monitor()"}
#6  0x0066d371 in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#7  0x00558ffe in clone () from /lib/tls/libc.so.6
No symbol table info available.
(gdb) quit