of the same context information this level of redundancy provides the highest network reliability as long as one context server does not fail in an alternate embodiment where there are storage or processor capacity limitations in the servers for example a partitioning rule may be applied at the network control elements to designate a subset of context servers to use for example a network control element may have assigned thereto context servers a c whereas another network control element may have assigned thereto context servers d f or a network control element may access context servers a c if the call signal data key is within a certain range and context servers d f if the call signal data key is within a different range other such partitioning rules may also be applied in another alternate embodiment a partitioning rule may be dynamically applied while the system is running in order to provide context server scalability for example the number of subsets of context servers and or the number of servers per subset may increase or decrease based on the performance and transaction requirements for the system an example of an implementation of embodiments of this invention is a wireless prepaid service in which multiple network components from multiple vendors work together to provide the.