Frank Ohrtman

• Softswitch
• Softswitch
• The Next Telecom Boom in 50 Pages
• Voice over 802.11
• Wi-Fi handbook
• WiMAX handbook
• WiMAX handbook
• I'll Vote for You If You Make My iPhone Work
• I'll Vote for You If You Make My Netflix Work!
• Softswitch
• WiMAX Handbook
• WiMAX Handbook (McGraw-Hill Communications)