Exhibit 99.1

InterDigital to Oppose Nokia's Effort to Appeal Federal Court's Confirmation of
Final Award

    KING OF PRUSSIA, Pa.--(BUSINESS WIRE)--Jan. 27, 2006--InterDigital
Communications Corporation (NASDAQ:IDCC) announced that it intends to
oppose Nokia Corporation's (Nokia) efforts to appeal the recently
issued judgment of a federal court confirming an arbitral award
against Nokia. In December 2005, the federal district judge presiding
over the enforcement proceeding between InterDigital and Nokia in the
United States District Court for the Southern District of New York
confirmed in its entirety the Final Award rendered in June 2005 by the
Arbitral Tribunal operating under the auspices of International Court
of Arbitration of the International Chamber of Commerce (ICC). Nokia
has filed a notice of appeal, indicating that it is appealing the
federal court's judgment to the United States Court of Appeals for the
Second Circuit.
    "I am disappointed that Nokia has elected to pursue yet another
legal challenge to its royalty obligations to InterDigital in spite of
an unambiguous confirmation of the Final Award by the federal court,"
commented William J. Merritt, President and Chief Executive Officer of
InterDigital. "Notwithstanding Nokia's latest action, our resolve to
prevail in this dispute remains steadfast and absolute. We will
continue to pursue all legal remedies to secure payment and we remain
confident that Nokia will pay the amounts due, either of its own
accord or by court order."

    Note to editors:

    In February 1999, Nokia entered into agreements with InterDigital
which covered both technology development and a patent license
agreement. As part of the patent license agreement, Nokia paid $31.5
million up front to InterDigital to cover product sales through the
end of 2001. Royalties owed after 2001 could be defined through direct
negotiation, or by a patent license agreement with a designated major
competitor. Patent licensing agreements signed in March 2003 between
InterDigital and Ericsson and Sony Ericsson established the framework
for Nokia's royalty obligations for 2G and 2.5G handset and
infrastructure sales. After these patent licensing agreements were
signed, InterDigital notified Nokia of its royalty payment
obligations. Nokia disagreed with InterDigital's interpretation of the
impact of these patent licensing agreements and requested binding
arbitration in July 2003 to resolve the dispute. In June 2005, the
Arbitral Tribunal delivered its Final Award in the arbitration
proceeding between InterDigital Communications Corporation, its
wholly-owned subsidiary InterDigital Technology Corporation, and
Nokia. The Tribunal established royalty rates which are applicable to
Nokia's sales of covered products for the period beginning January 1,
2002 through December 31, 2006. Despite the Final Award, Nokia has
refused to pay the royalties owed to InterDigital.

    About InterDigital

    InterDigital Communications Corporation designs, develops and
provides advanced wireless technologies and products that drive voice
and data communications. InterDigital is a leading contributor to the
global wireless standards and holds a strong portfolio of patented
technologies which it licenses to manufacturers of 2G, 2.5G, 3G and
802 products worldwide. Additionally, the company offers baseband
product solutions and protocol software for 3G multimode terminals and
converged devices. InterDigital's differentiated technology and
product solutions deliver time-to-market, performance and cost
benefits. For more information, please visit InterDigital's web site:
www.interdigital.com. InterDigital is a registered trademark of
InterDigital.

    This press release contains forward-looking statements regarding
our current beliefs, plans and expectations as to the receipt of past
and future royalty obligations of Nokia under the Final Award and our
pursuit of all legal remedies to secure payment. Forward-looking
statements are subject to risks and uncertainties. Actual outcomes
could differ materially from those expressed in or anticipated by such
forward-looking statements due to a variety of factors including, but
not limited to those contained herein and (i) InterDigital's
interpretation of and Nokia's compliance with the Award, and (ii)
unanticipated appeals or delays in securing enforcement of the court
order confirming the Final Award.

    CONTACT: InterDigital Communications Corporation
             Media Contact:
             Jack Indekeu, 610-878-7800
             jack.indekeu@interdigital.com
                 or
             Investor Contact:
             Janet Point, 610-878-7800
             janet.point@interdigital.com