Its test results are described , which include function test , performan ce test , call procedure test , communication with other manufacturer ' s devices test . at last , an advanced system is put forward 最后,描述了網(wǎng)關(guān)的測(cè)試情況,給出了其功能測(cè)試、性能測(cè)試、呼叫流程測(cè)試和互通性測(cè)試的結(jié)果,并提出了下一步工作的改進(jìn)建議。