What happens when your network tests indicate your system is working correctly but the system has trouble calls and low performance? Jason Walls from University of New Hampshire InterOperability Laboratory explained to me at the TelcoTV show that networks tests that validate conformance to industry standards may not ensure the system is actually working correctly or performing to its optimum potential. Industry standards can be interpreted in different ways and there may be conditions or performance that is not measured by existing tests. To help solve this challenge, a consortium of companies (a neutral environment) has been setup to help ensure interoperability is possible and a good set of performance measurements are performed.