hi all, here is my vm_test.sh: here is the reply from /var/log/messages: Apr 29 14:34:51 serveur1 /usr/sbin/ser[3657]: ERROR: fifo_uac: Content-Type missing I'd like to test vm module and sems ??? Harry ---------------------------------------------------- #!/bin/bash loop=5 max_speed=30 SIP_DST="sip:harry@192.168.0.1" alarm=0 SER_FIFO="/tmp/ser_fifo" SIP_FROM="sip:webmaster@192.168.0.1" cat > $SER_FIFO << EOF :t_uac_dlg:am_fifo INVITE $SIP_DST $SIP_DST <$SIP_DST> <$SIP_FROM> 12345-tag-12345 100 1234576098621 Content-Type: application/sdp Contact: <sip:webmaster@192.168.0.11:5060> v=0 o=username 0 0 IN IP4 192.168.0.1 s=session c=IN IP4 192.168.0.1 t=0 0 m=audio 30000 RTP/AVP 0 a=rtpmap:0 PCMU/8000 . EOF --------------------------------------------------------------