An adjunct processor for a wireless telephone system utilizes object-oriented software for providing a common air-interface protocol for each cell site's base station, so that, regardless of the specific cellular system. it may be coupled to the central, adjunct node-processor of the invention, so that multifarious-operating cellular systems may be linked by the central personal computer adjunct node-processor into one holistic system comprised of many different cellular operating systems and of many node-processors. A network of many adjunct node-processors allows hand-off between adjunct processors, to that if one adjunct processor fails or is down, another adjunct processor in the network may take over its functions. Each adjunct processor also has an alarm-management system and a billing and accounts-management system, which may take over the same systems another, down adjunct processor. Each component is comprised of an objects-oriented software and a state table, with the objects-oriented software creating a pointer for the state table. The billing function is continuous during the processing of the call, so that, if the available credit for a user has expired while a call is in progress, that call is automatically terminated.