Appendix:
Support links to various switch vendor platforms:
Asterisk - Support Forum
http://forums.asterisk.org/
3CX - Support Forum
http://www.3cx.com/forums/
Avaya - Support Forum
http://support.avaya.com/css/appmanager/public/support
Elastix - Support Forum
http://www.elastix.org/index.php/en/component/kunena/
Trixbox - Support Forum
http://fonality.com/trixbox/forum
Grandstream - Support Forum
http://forums.grandstream.com/forums/
Cisco - Support Forums
http://www.cisco.com/cisco/web/support/index.html
FreePBX - Support Forum
http://www.freepbx.org/forums
Talkswitch - Support Forum
http://www.talkswitch.com/us/en/support/
AudioCodes - Support
http://www.audiocodes.com/support
Voipswitch - Support
http://www.voipswitch.com/
IPsmarx - Support
http://www.ipsmarx.com/Support.html
Huawei - Support
http://support.huawei.com/support/
Sonus Networks - Support
http://sonusnetworks.force.com/PortalLoginPage
PortaOne - Support
http://portaone.com/support/portacare/