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http://www.radcom.co/fa/news/75/%d8%b3%d9%be%d8%a7%d8%b3-%d8%a7%d8%b2-%d8%ad%d8%b6%d9%88%d8%b1-%da%af%d8%b1%d9%85%d8%aa%d8%a7%d9%86-%d8%af%d8%b1-%d9%86%d9%85%d8%a7%db%8c%d8%b4%da%af%d8%a7%d9%87-%d8%a7%d9%84%da%a9%d8%a7%d9%85%d9%be-2017