hi was someone already do a programm to know the latency of each users in the location table of ser? i want to execute it and that is take all registered users in location table and send a OPTIOS message to ser. like serctl with the command : serctl fifo t_uac_dlg OPTIONS "sip:michael@195.XXX.XXX.XXX:XXXXX" "." "From: sip:daemon@dev.annatel.net" "To: <sip:michael@195.XXX.XXX.XXX:XXXXX>" "Contact: <sip:daemon@>" "." "." but with timestamps and put all of them in a new table thanks M.