EXHIBIT 1
JOINT FILING AGREEMENT
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The undersigned hereby agree to jointly file a statement on Schedule 13D,
together with any amendments thereto (collectively, the "Schedule 13Ds"), with
the Securities and Exchange Commission pursuant to the requirements of Rule 13d-
1(f) under the Securities Exchange Act of 1934, as amended.
This Joint Filing Agreement may be signed in counterpart copies.
(Signature Page Follows)
Date: May 27, 1997 GENERAL MOTORS CORPORATION
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By: /s/ Xxxxxx X. Xxxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxxx
Title: Senior Vice President and
General Counsel
Date: May 27, 1997 XXXXXX COMMUNICATIONS, INC.
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By: /s/ Xxxxxx X. Xxxxxxx
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Name: Xxxxxx X. Xxxxxxx
Title: President