MY DEAR FREIEN RESENTLY I HAVE PURCHAESD SAME MODEL I ALSO FACE THE SAME PROBLEM MY POHNE WAS SET ON TONE AND I WANT TO CHANGE IT TO PULSE SO I SEARCHED THE NET AND FOUND THE SOLUTION THAT IS AS FOLLOWS
TAKE THE HAND SET NEAR BASE UNIT
ENSURE TALK SHOULD BE OFF
PRESS "]PROGREMME"]KEY
TALK INDICATOR WILL BLINK
PRESS "AUTO" THAN * TWICE AND THAN AGAIN PROGEMME KEY NOW YOUR PHONE WILL BE SET FOR "TONE" FOR PULSE AGAIN PROGREMME+AUTO+# (TWICE ) AND THAN PROGREMME
I THINK IT WILL HELP YOU
AS I HAVE TRIED IT AND IT IS OK
NEERAJ KUMAR GARG INDIA