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SIMPLE SUPPLEMENTARY SERVICE PROTOCOL FOR H.323 SYSTEMS

09/761,136 | U.S. Patent Application

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Filed Jan. 16, 2001
Examiner Yemane Mesfin
Class 709
Art Group 2144
Patent No. 7,155,528
Case Type Utility
Status Patented Case
Last Updated: 5 days, 19 hours ago
Date # Transaction