[Serusers] problem with fifo server

[Emanuel Schmid]

Hello

I'm trying to send a SIP-Info via the ser fifo server. This works fine
for one time, but if I want to send a second message, I have to wait a
certain time or I get the following errors:
-------------------------
 9(12790) ERROR: fifo_server: command must begin with :: INFO
 9(12790) ERROR: fifo_server: command must have at least 3 chars
 9(12790) ERROR: fifo_server: command must begin with :: To:
<sip:dummy at pc33.faerun.ch>
 9(12790) ERROR: fifo_server: command must begin with :: Content-Type:
text/plain; charset=iso8859-1
 9(12790) ERROR: fifo_server: command must begin with :: And this is a
text again.
------------------------

i used the following skript to get the message to the fifo:
------------------------
cat > /tmp/ser_fifo <<EOF
:t_uac_dlg:hh
INFO
sip:dummy at pc33.faerun.ch
.
From: <sip:ser at faerun.ch>
To: <sip:dummy at pc33.faerun.ch>
Contact: <sip:devnull at pc38.faerun.ch>
Content-Type: text/plain; charset=iso8859-1
.
And this is a text again. 
.
EOF
--------------------------

If the message is acceptet, everything works as expected.

Counting the lines in the script and comparing them to the errors, it
looks as if the second time I tried to send the message the first line
was consumed without being processed (by the last call?).

What am I doing wrong?

thanks a lot
emanuel