Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. It can be used as a building block for SIP client software for uses such as VoIP, IM, and many other real-time and person-to-person communicat

基于Turbo码的网格编码调制的c代码，包括了VQ，TCQ、TCVQ、SQ以及维特比算法等，内容非常全面，不过要在linux平台上运行。-Turbo codes based on trellis coded modulation c code, including the VQ, TCQ, TCVQ, SQ and the Viterbi algorithm, the content is very comprehensive, but in linux platform.