Systems, methods and computer program products for facilitating the provisioning of a single and multi-line virtual private branch exchange (PBX) including automated call distribution via a mobile device are described. In some implementations, the provisioning of the single and multi-line virtual PBX can be achieved using one or more unique provisioning interfaces. The unique provisioning interfaces can enable the setup and configuration of a virtual PBX service account instantaneously from any geographical location at any time. Changes made to the virtual PBX service account can be immediately reflected back (e.g., in real-time) to the system providing the core operating environment.