Company Name

SIP

Exceed VPN

Alcatel

v

Asgent

v

Asterisk/Trixbox

v

v

China Broadband Communications

v

Free World Dialup

v

Huawei

v

Net-2com

v

v

Polylink

v

Posterity

v

Seawolf

v

v

Spider

v

v

Walkersun

v

Waygoing

v

ZTE

v

Voipswitch

v

v