References
GSM 11.10-1 version 4.20.0, Digital cellular telecommunications system – Mobile Station conformance specification, European Telecommunications Standards Institute, France, November 1997, pp. 151-159.
Conexant Systems, “Multi-Slot GSM/GPRS System Solution,” http://www.conexant.com.
ZCOMM, “Serial Communication Component,” http://www.medasis.com/tools/zcomm.htm.