PTSC Member Companies

AcmePacket
Alcatel-Lucent
AT&T
Avici Systems
Cisco Systems
Department of Defense
Embarq Corporation
Ericsson Incorporated
ETI Connect
ETRI
FBI ESTS
Hewlett-Packard
Intel Corporation
Intelsat
IP Fabrics Inc.
MetaSwitch
Microsoft
Motorola
National Communications System
NEC Corporation of America
NeuStar
Nokia Siemens Networks
Nokia Telecommunications Inc.
Nortel
Pen-Link, LTD.
PSEP Canada
Qwest
Sprint
SS8 Networks
Telcordia Technologies
Tellabs Operations, Inc.
Tridea Works
VeriSign
Verizon Communications