/// <summary>
/// 恢复保持的呼叫
/// </summary>
public void ResumeCall()
{
var errno = PlcmProxy.ResumeCall(this.CallHandle);
if (ErrorNumber.OK != errno)
{
throw new Exception("恢复呼叫失败，ErrorNo=" + errno);
}
log.Info(string.Format("呼叫{0}恢复", CallName));
}