Project of VoIP exchange for commercial usage

The aim of this thesis is create VOIP central based on Asterisk with billing system A2Billing. First of all is describe process of instalation programing instrument and provisioning pbx for local and outgoing calls. Short describe to billing of calls and praktical show of completely setting of system are follows. Administrator and user web based interface is described to. At the end of thesis is shown different technology of VOIP phones which was use in thesis. Setting of this phones is briefly described