Taiwan's Chunghwa Telecom launched commercial Push-to-Talk over Cellular (PoC) service over its General Packet Radio Service (GPRS) network. The deployment uses Push-to-Talk over Cellular (PoC) solution. With CHT, Motorola currently has 18 contracts with customers operating in 23 countries and territories worldwide to supply PoC infrastructure solutions for both CDMA2000 1X and GSM/GPRS networks. http://www.motorola.com