OPENWAVE SYSTEMS INC. ANNOUNCES
                           CLOSING OF PRIVATE OFFERING
                        OF CONVERTIBLE SUBORDINATED NOTES


REDWOOD CITY, Calif. - September 9, 2003 - Openwave Systems Inc. (Nasdaq: OPWV)
today announced the closing of a private offering of $150 million of its 2.75%
convertible subordinated notes due 2008, including $15 million pursuant to the
initial purchaser's over-allotment option. The offering was made only to
qualified institutional buyers in accordance with Rule 144A under the Securities
Act of 1933.

Each note is convertible at any time at the holder's option at a conversion
price of $6.13 per share, which is equal to a conversion rate of 163.0789 shares
per $1,000 principal amount of notes, subject to adjustment in certain
circumstances. Openwave used approximately $12 million of the net proceeds from
the offering to purchase a portfolio of U.S. government securities that was
pledged to secure the payment of the first six scheduled interest payments on
the notes. Openwave intends to use the remaining net proceeds from the offering
for additional working capital and other general corporate purposes, including
potential acquisitions or strategic investments. Openwave has no specific
agreements or commitments, and is not currently engaged in any negotiations, for
any material acquisitions or strategic investments.

Each holder of the notes will have the right to require Openwave to repurchase
its notes upon the occurrence of specified change in control events. In
addition, Openwave will have the right to redeem the notes for cash after a
specified date in 2006 if the price of Openwave's common stock exceeds a
specified threshold.

The notes and the shares of common stock issuable upon conversion of the notes
have not been registered under the Securities Act or any other securities laws.
Unless they are registered, the notes and the shares of common stock issuable
upon conversion of the notes may be offered and sold only in transactions that
are exempt from registration under the Securities Act and any other applicable
securities laws.

Cautionary Note Regarding Forward Looking Statements

This release contains forward-looking statements relating to expectations, plans
or prospects for Openwave, including the anticipated use of proceeds of the
offering. These statements are based upon the current expectations and beliefs
of Openwave's management and are subject to certain risks and uncertainties that
could cause actual results to differ materially from those described in the
forward-looking statements. For a detailed discussion of these risks and
uncertainties, please refer to the risk factors and other cautionary statements
discussed in the Openwave's filings with the U.S. Securities and Exchange
Commission.

                                      # # #

              Openwave and the Openwave logo are trademarks and or
               registered trademarks of Openwave Systems Inc. All
                  other trademarks are the properties of their
                               respective owners.

For more information please contact:

Openwave Systems Inc.

Investors
Bonnie McBride
Global Consulting Group
+415 388-1635

Josh Pace
Openwave
+650 480-4622

Press
Michele Landry
Openwave
+650 480-4622