This a simulator written in Tcl to simulate a network node carrying GSM and GPRS traffics with QoS mechanisms. The payload type including circuit-switched voice, VoIP and web traffic, and the performance including packet drop, delay can be analyzed.

ITU-T G.722.2 国际电信联盟G.722.2建议书，2003年7月版。该建议书是语音通讯领域的压缩标准，被GSM，WCDMA，3GPP等采用，题目为16kbit下的宽带语音编码，使用自适应多率宽带编码。 内容主要有代数码激励线性预测编码(ACELP)，话音活动检测(VAD)等。-This Recommendation describes the high quality Adaptive Multi-Rate Wideband (AMR-WB) encoder and de

UMTS Networks and Beyond This a book onMobi le Communi cation Netw orks, in p articular the Univers al Mobi le Teleco mmunica tion Sy stem (UMTS) and its successor technol ogies. UM TS is the successor of GSM, and is expected to b ecome one of