SOUTH ORANGE, N.J -- Applicants to New Jersey's major Catholic university got a shock when they called an 800 number for assistance and instead received an invitation to sex talk.

Seton Hall University blamed the problem on the transposition of two digits, which gave students the number of a phone sex business.

"We did 973 instead of 937. As you can see, it's an easy mistake," spokesman Thomas White told the Star-Ledger of Newark.

The typo occurred both on the university's Web site and on printed application materials. The number was supposed to be that of World Education Services, a New York company that screens foreign high school transcripts.

White said the university had received no complaints about the error and he did not know how long the misprint has been on forms.