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Flag of China shanghai, China
Member since July, 2012
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web programmer,linux,system administrator,php,asterisk,opensips,kamailio,etc Feb 2014, I help to implement 1800avas call center, it has 4 asterisk servers for now provding hosted voip platform at benzvoip August 2011 – Present (8 months) shanghai on demand voice broadcast service check programmer and system administrator and a small opensips job for conference solution of September 2010 – Present (1 year 7 months) brooklyn,ny web programmer March 2010 – August 2010 (6 months) NYC web programmer ,also for ,etc web programmer Zyacom USA, LLC 2009 – 2009 (less than a year) voip programmer talkbus 2006 – 2008 (2 years) voip engineer martin's voip project
$20 USD/hr
1 review
  • 25%Jobs Completed
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Recent Reviews

  • image of mattl Asterisk AGI script for Vici Dial server $192.00 USD

    “Yang is the best Asterisk/ VOIP developer I have worked with. He gets everything that I say, and works very quickly. I truly value him as a member of my team and will be working with him very frequently on a ongoing basis. He has already created several AGI scripts, customized Vici dial, and created some really unique dial plan solutions for us.”


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