asterisk users - Dec 2004 - CVS-HEAD breaks iconnect

I don't use my iconnect account much, and so I can't say precisely when 
outbound calls began to fail.

But fail dramatically they do, and I'm not sure how to interpret what 
Asterisk is doing that their server is choking on.  I get these messages 
in droves, even after I quickly hang up the call:

     -- Called 12195551212@iconnect
Dec  1 02:37:56 WARNING[14865]: chan_sip.c:604 __sip_xmit: sip_xmit of 
0x810226c (len 728) to 213.137.73.140 returned -1: Invalid argument
Dec  1 02:37:57 WARNING[14881]: chan_sip.c:604 __sip_xmit: sip_xmit of 
0x815c8fc (len 376) to 213.137.73.140 returned -1: Invalid argument
. . . (ad infinitum)

Thx.

B.

what does this warning really mean?
does it have any side effect on my * box? 'cose I've recently had
random seg. faults on my box.
I'm using latest CVS -r v1-0

Dec  1 12:08:42 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:43 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:44 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:44 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:45 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:48 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:48 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:50 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:55 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:56 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!
Dec  1 12:08:57 WARNING[6189]: Avoided deadlock for 'SIP/2502-6303', 10
retries!