This paper,taking H.248 signaling for example,introduces the technology of the original signals synthesize SDR and CDR.Experiment shows that the method is reliable and feasible.

• 以H.；248信令为例；介绍了由原始信令合成SDR；CDR的技术；对该合成算法进行了仿真；实验结果证明了该设计方法的可靠可行性。