A Second Life for Push to Talk
By Andrew Seybold, December 1, 2011

Sprint to Launch Enhanced Push-to-Talk Service on CDMA Network
By Alex Colon, March 16, 2011

Sprint to Deploy Enhanced CDMA Push-to-Talk Service in Q4
By Phil Goldstein, March 16, 2011

In Brief: KDDI to Tie Up with Skype
By DowJones Newswires, October 18, 2010

Qualcomm, Iusacell Provide Diabetes Information Apps Over 3G Network - Mexico
By BN Americas, October 8, 2010 

Sprint ID Customizes Android Devices with Pre-Packaged Apps, Widgets
By Sue Marek, October 6, 2010

China Telecom Launches Mobile Gaming Platform
By Sin Tech, August 29, 2010

China Telecom Beijing Launches IDC Service Platform For 3G Apps
By China Tech News, May 12, 2010