VOIP Adapter is required for connecting PBX systems to VoIP network and for converting analog voice signals into digital form. It is provided with FXS ports for connecting analog telephones. This adapter is provided with echo cancellation and web-based management functions with automatic provisioning through HTTP. It provides function of anonymous call blocking and filtering with music on hold. VOIP Adapter can easily be connected to broadband internet connection and assures clear sound quality. It is completely suitable to be used with all types of offices with excellent working efficiency.