Exhibit 99.3 ESCROW AGREEMENT This ESCROW AGREEMENT (this "Escrow Agreement"), dated as of January 18, 2001, (the "Closing Date"), is among SONUS NETWORKS, INC., a Delaware corporation (the "Parent"), and ANOUSHEH ANSARI and JOHN PHELAN, in their...Escrow Agreement • March 26th, 2001 • Ansari Anousheh • Services-computer integrated systems design • Delaware
JOINT FILING AGREEMENTJoint Filing Agreement • March 26th, 2001 • Ansari Anousheh • Services-computer integrated systems design
Pursuant to Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing of this Statement on Schedule 13D including any amendments thereto. This Joint Filing Agreement may be executed in any number of counterparts, each of which shall be deemed an original, but all of which shall constitute one and the same instrument.
RECITALSPledge Agreement • March 26th, 2001 • Ansari Anousheh • Services-computer integrated systems design • Delaware
Exhibit 99.6 SONUS NETWORKS, INC. 2000 RETENTION PLAN FORM OF AWARD AGREEMENT THIS AGREEMENT dated as of ,20 , (the "Grant Date") between Sonus Networks, Inc., a Delaware corporation (the "Company"), and the undersigned employee of telecom...Retention Plan Agreement • March 26th, 2001 • Ansari Anousheh • Services-computer integrated systems design • Delaware
Exhibit 99.4 OPTION PLAN FUNDING AND ESCROW AGREEMENT This OPTION PLAN FUNDING AND ESCROW AGREEMENT (this "Escrow Agreement"), dated as of January 18, 2001, is among SONUS NETWORKS, INC., a Delaware corporation (the "Parent"), ANOUSHEH ANSARI and...Option Plan Funding and Escrow Agreement • March 26th, 2001 • Ansari Anousheh • Services-computer integrated systems design • Delaware
