asterisk users - Mar 2004 - sipsock_read: Recv error: Resource temporarily unavailable

Hello ,

i?ve been trying to connect with x-lite to our new installed asterisk 
box ( version CVS-03/02/04-20:21:53 )  as i can see with etheral does 
x-lite send sucessfully  the REGISTER command to the server. On the 
server i get during the same time this error message:

Mar  7 10:45:06 WARNING[81926]: chan_sip.c:5632 sipsock_read: Recv 
error: Resource temporarily unavailable

Does anybody know what went wrong?

Thanks in advance,

Chris