EXHIBIT 10.1
AMENDMENT NO. 4 TO TEKELEC
2004 EQUITY INCENTIVE PLAN FOR NEW EMPLOYEES
     Section 3 of the Tekelec 2004 Equity Incentive Plan for New Employees is
hereby amended, effective August 1, 2005, to read in its entirety as follows:

  “3.   Shares Reserved.

     The maximum aggregate number of Shares reserved for issuance pursuant to
the Plan shall be 6,000,000 Shares or the number of shares of stock to which
such Shares shall be adjusted as provided in Section 11 of the Plan. Such number
of Shares may be set aside out of authorized but unissued Shares not reserved
for any other purpose, or out of issued Shares acquired for and held in the
treasury of the Company from time to time.
     Shares subject to, but not sold or issued under, any Award terminating,
expiring, forfeited or canceled for any reason prior to the issuance of such
Shares shall again become available for Awards thereafter granted under the Plan
and the same shall not be deemed an increase in the number of Shares reserved
for issuance under the Plan.”
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