A test methodology for PSTN emulation and simulation services over Next Generation Networks

In this paper, we present a test methodology for PSTN emulation and simulation services in order to test capabilities and features of Next Generation Networks (NGN) elements. The main purpose of these tests is evaluation of vendors’ equipment in single and multi-vendor environments in conjunction with the legacy PSTN network. The methodology consists of some categories each of which includes some areas and each area, as well, encompasses various test topics. This hierarchy covers a large number and different types of important test cases that should be executed over an NGN environment. We executed the test methodology over a testbed, practically. This testbed is a nationwide pilot that was designed and implemented in Iran Telecom Research Center (ITRC) and resulted in outstanding outcomes and considerations.