SOME PROBLEM IN THIS DEVICE WITH FAX LINE BCOZ I AM A TECHNICIAN AND I INSTALLED THIS DEVICE IN SO MUCH CUSTOMER PREMISSES ALL CUSTOMER IS FACING THE PROBLEM WITH FAX LINE INCOMING IS OK BUT OUTGOING IS NOT WORKING ALSO IN NORMAL TELEPHONE LINE IN THIS CAAUSE VOICE QUALITY IS NOT GOOD CAN YOU SEND ME MANUAL CONFIGRATION FOR THIS DEVICE ON MY MAIL ADDRESS, jebran1234@yahoo.com I WILL BE WAIT FOR YOUR REPLY THANKS