1.5 STScI Help Desk If this Call for Proposals and the materials referenced above do not answer your questions, or if you have trouble accessing or printing Web Documents, then contact the STScI Help Desk. You can do this by: • Sending an e-mail to help@stsci.edu. • Calling 1-800-544-8125, or from outside the United States and Canada, +1 410-338-1082.