asterisk users - Aug 2004 - Received packet with bad UDP checksum

I was just on 70minute call (IAX2 -> Internet -> IAX2) and during that
time I heard several "pops", or "clicks". Each time it
happened, I saw
the following message:

Aug 19 15:36:36 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum

Any ideas what causes these, and why they turn in to a "pop", instead
of
just silence, or a missed portion of audio?

Thanks


Here are the rest of them:
-----------------------------------------
Aug 19 15:36:36 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:36:58 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:37:39 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:38:30 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:38:52 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:40:22 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:42:16 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:46:09 NOTICE[1209019312]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:46:51 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:50:34 NOTICE[1209019312]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:50:43 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:52:46 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:53:06 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:53:35 NOTICE[1209019312]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:53:44 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum
Aug 19 15:54:04 NOTICE[1173711792]: rtp.c:429 ast_rtp_read: RTP:
Received packet with bad UDP checksum



-- 
Mike Benoit <ipso@snappymail.ca>

Searched google for this and didn't get much help.

    -- Executing SetVar("Zap/1-1", "SIP_CODEC=alaw") in new
stack
    -- Executing Dial("Zap/1-1", "SIP/15126800411@Voex|60")
in new stack
    -- Called 15126800411@Voex
    -- Accepting call from '2819870065' to '5126800411' on
channel 0/1, span
1
    -- SIP/Voex-9b0a is making progress passing it to Zap/1-1
Dec 20 15:08:36 NOTICE[11117]: rtp.c:355 ast_rtcp_read: RTP: Received packet
with bad UDP checksum

The call went thru and sounded fine. But I was worried about this notice. Am
I correct in understanding that since it says "Recieved", that means I
got a
packet into asterisk from @Voex that was bad? ie: they sent me a bad packet?

Is there anything I can do about this?

Thanks,
-Matthew