See more at http://www.siliconorchard.ca/silm/
worked as android client development
SILM – Siliconorchard Internet Less Messeger .Currently all walkie talkie app for smartphone available now are hugely relying on network availability and stability, which is assumpted not guaranteed in many areas such as stadiums, sea beach, forest areas, desert area, large tourist spots, picnic area, Educational institute or any other institute where internet is restricted due to many reason. But these places a communication tool is needed. Where as existing solution in the app store is not suited for our need.
A communication app on smartphone can use without internet connection. Staff can push to talk for instant, radio-style, communicate smoothly and privately with other. It will be better to work along with bluetooth headset and with noise cancellation.