Contact Information
Investor Relations Contacts
John Lyon
Vice President,
Director of Corporate Finance
Andrew Finkelstein
Director of Investor Relations
+1 877 PER NYSE
(+1 877 737 6973)
Fax +1 972 577 6791
investors@ps.net
Media Relations Contact
Joe McNamara
Corporate Communications Director
+1 972 577 6165
news@ps.net