How to make exec read faster?

Hai,
I was try doing php agi script .I want user able to input 1 digits and directly move to next step with out wait user press pound(#) keys.

astWrite("STREAM FILE account-number X"); astRead(); astWrite("EXEC READ tempread1"); astRead(); astWrite("GET VARIABLE tempread1"); $a1=astRead(); echo $a1 . "\n"; astRead(); $num1=substr($a1,1); $num1=substr($num1,0,-1); $acc1 = (string)$num1; $acc11 = $acc1[0]; astWrite("SAY DIGITS ".$acc11." #"); astRead();

Please advice.

Regards,
Wallace