-
-
-
Virtual tandem switch
-
Patent number 7,099,311
-
Issue date Aug 29, 2006
-
SBC Technology Resources, Inc.
-
George C. Allen, Jr.
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
Distributed virtual tandem switch
-
Patent number 7,095,734
-
Issue date Aug 22, 2006
-
SBC Technology Resources, Inc.
-
George Coleman Allen, Jr.
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE