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EXHIBIT 8
JOINT FILING AGREEMENT
We, the signatories of the Statement on Schedule 13D to which this
Agreement is attached, hereby agree that such statement is, and any amendments
thereto filed by any of us will be, filed on behalf of each of us.
CII VENTURES II LLC
By: KKR 1996 Fund L.P.
By: KKR Associates 1996 L.P., its
General Partner
By: KKR 1996 GP LLC, its General Partner
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
CII VENTURES LLC
By: KKR 1996 Fund L.P.
By: KKR Associates 1996 L.P., its
General Partner
By: KKR 1996 GP LLC, its General Partner
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
KKR 1996 FUND L.P.
By: KKR Associates 1996 L.P., its
General Partner
By: KKR 1996 GP LLC, its General Partner
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
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KKR PARTNERS II, L.P.
By: KKR Associates (Strata) L.P., its
General Partner
By: Strata LLC, its General Partner
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
KKR ASSOCIATES 1996 L.P.
By: KKR 1996 GP LLC, its General Partner
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
KKR ASSOCIATES (STRATA) L.P.
By: Strata LLC, its General Partner
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
KKR 1996 GP LLC
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
STRATA LLC
By: /s/ William J. Janetschek
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Name: William J. Janetschek
Title: Attorney-in-fact for
Henry R. Kravis
Dated: October 27, 2000