The 4-day course was technically excellent. The architecture of PSTN network and how it works, was very useful to me. I think the instructor is very knowledgeable. He is an excellent instructor. I will recommend this course.
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The 4-day course was technically excellent. The architecture of PSTN network and how it works, was very useful to me. I think the instructor is very knowledgeable. He is an excellent instructor. I will recommend this course.
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