The product you seem to be referring to is not an Agilent product. What used to be our Electronic Test & Measurement Group was split off in 2014 into another publicly-traded company called Keysight Technologies. Their toll-free number is 1-800-829-4444.
You may also find pertinent technical information for this product on their website: http://www.keysight.com/main/techSupport.jspx?pid=x201707
Thanks for your help.