• Wi-Fi supplies: ElectroComm Distributing http://www.electro-comm.com
• VoIP equipment: http://voxilla.com

Preferred Hardware:

• SIP Proxy Boards: Soekris Engineering http://www.soekris.com
• Radios: Ubiquiti http://ubnt.com

Preferred Software:

• MonoWall Firmware for Soekris: http://m0n0.ch/wall
• Askozia PBX http://www.askozia.com
  

Other Organizations

• Seattle Wireless http://www.seattlewireless.net