How to make a method thread-safe in Java?

http://www.programcreek.com/2014/02/how-to-make-a-method-thread-safe-in-java/

How to Easily Load Test With Open Source Tools

https://dzone.com/articles/how-to-easily-load-test-with-open-source-tools

Creating Object Pool in Java

https://dzone.com/articles/creating-object-pool-java

Bittium & MCPTT Players

http://www.lte-applications.com/28556/news/anite-and-bittium-bring-combined-drive-test-solution-to-us-public-safety-lte-networks

http://news.cision.com/bittium-oyj/r/bittium-exhibits-its-products-and-solutions-for-tactical-communications-at-eurosatory-defense-exhibi,c2027536

http://lteps.blogspot.tw/2015/12/public-safety-smartphones.html

http://www.genaker.net/blog/en/

3GPP Release 13

http://www.wireless-mag.com/News/40921/mission-critical-ptt-over-lte-standard-completed-in-time-for-release-13.aspx

http://lteps.blogspot.tw/

Air Lynx

http://www.lte-applications.com/27995/feeds/other-news/bittium-air-lynx-launch-world-s-first-public-safety-lte-evolved-multi-media-broadcast-multicast-solution

http://www.arabianindustry.com/comms/news/2016/jun/1/embms-solution-launched-for-critical-communications-5390203/

https://www.linkedin.com/company/air-lynx

Mobicents Wake up call example issue

http://www.developer-works.com/article/206309/How+do+I+deploy+the+wake+up+call+DU%3F