Exhibit 99.1

          InterDigital Issues Revenue Guidance for Second Quarter 2006;
   Solid Recurring Royalties and Recognition of Nokia Revenue Benefit Quarter

     KING OF PRUSSIA, Pa.--(BUSINESS WIRE)--May 30, 2006--InterDigital
Communications Corporation (Nasdaq:IDCC) today announced that it expects total
second quarter 2006 revenue to be in the range of approximately $291 million to
$293 million. Expected revenues for second quarter 2006 include the following
approximate amounts:

     --   $228 million associated with the resolution of a dispute with Nokia
          related to a prior patent license agreement,

     --   $50 million to $51 million of recurring patent license royalty revenue
          from its base of existing licensees,

     --   $12 million of patent license royalty revenue related to resolution of
          a licensing matter with Panasonic, and

     --   $1 million to $2 million of revenue related to technology solution
          agreements.

     Additionally, InterDigital expects to recognize the balance of the revenue
related to Nokia's $253 million payment this year, recording $12.5 million per
quarter in each of third and fourth quarter 2006. Panasonic is obligated to
provide InterDigital a royalty report for first quarter 2006 sales. As
InterDigital has not yet received the report, the second quarter 2006 forecast
does not include per unit royalties from Panasonic.
     Richard Fagan, InterDigital's Chief Financial Officer, noted, "We continue
to benefit from solid contributions from our existing base of patent licensees
and we remain optimistic about our prospects for growth as we continue to
capitalize on opportunities in the growing 3G market. While the recognition of a
large portion of the payment from Nokia in the second quarter will create an
unusual quarter, the payment provides further validation as to our ability to
generate value from our intellectual contributions to the wireless industry."

     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, delivering
time-to-market, performance and cost benefits. The company's financial strength
and solid revenue base contribute to the continued investment in innovation and
development that will shape the next generation of wireless technology. For more
information, visit the InterDigital website: www.interdigital.com.

     This press release contains forward-looking statements regarding our
current beliefs, plans and expectations as to second quarter 2006 revenue
including revenues from Nokia, recurring patent licensing royalties and revenues
from technology solution agreements and prospects for growth. 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, the
receipt of new royalty reports from current licensees, unanticipated revisions
to our expectations as to our progress toward completion of our agreements with
General Dynamics and Philips, and the ability to enter into new patent license
and product agreements in 2006.

     InterDigital is a registered trademark of InterDigital Communications
Corporation.


     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