Unless otherwise provided, any notice and other communications required or permitted by this Agreement will be in writing and will be deemed sufficient upon delivery, when delivered personally or by overnight courier or sent by telegram or fax, or 48 hours after being deposited in the U.S. mail, as certified or registered mail, with postage prepaid, and addressed to the party to be notified at such party’s address or fax number as set forth on the signature pages hereto or as subsequently modified by written notice.