VoIP Consultant with 10 years experience working with Trixbox, Asterisk, FreePBX, VoIP phones and systems. Experience include installation, configuration and managing the network. Computer Hardware/server installation/upgrade, VMWARE operation and management. VoIP based Prepaid Pinless Calling card system configuration, management, route testing, Carrier management, buying and selling long distance minutes. VoIP Software: A2billing, VoIPSwitch, Voicemaster voip billing. More then 10 years of experience in buying and selling on Ebay.