EXHIBIT 1
JOINT FILING UNDERTAKING
The undersigned, being duly authorized thereunto, hereby
execute this agreement as an exhibit to this Amendment to Schedule 13D to
evidence the agreement of the below-named parties, in accordance with rules
promulgated pursuant to the Securities Exchange Act of 1934, to file this
Amendment to Schedule 13D and any subsequent amendment jointly on behalf of each
of such parties.
DATED: February 12, 2001.
▇▇▇▇▇▇▇▇ H&Q VENTURES MANAGEMENT CO. LLC
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇ By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
---------------------------- ----------------------------
▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
Attorney-in-Fact Attorney-in-Fact
▇▇▇▇▇▇▇▇▇ & ▇▇▇▇▇ CALIFORNIA H&Q VENTURES IV
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇ By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
---------------------------- ----------------------------
▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
General Counsel Attorney-in-Fact
CHASE SECURITIES INC.
VENTURE ASSOCIATES (BVI) LIMITED
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇ By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
---------------------------- ----------------------------
▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
Managing Director Attorney-in-Fact
▇▇▇▇▇▇▇▇▇ & ▇▇▇▇▇ VENTURE
PARTNERS
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
----------------------------
▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇▇▇
Attorney-in-Fact
15
