dialler for asterisk

select scid from imeitable where scid_date > last 8 minutes (randomly pick 1 entry) lookup its last 7 digits of its gsm number from scid_gsm eg if scid=555555 select right(gsm_number,7) from scid gsm where scid=555555 prefix that number with digits 592 (i need to vary this in some cases, put as a variable on top of script) top of script should have Min_call_sec= Max_call_sec= when script is called, ..................