优化sip消息构建，去除ServerTransaction的使用

648540858

2022-10-18 74714711aa87dcd1259f5aebe55d362be732ffa2

 src/main/java/com/genersoft/iot/vmp/gb28181/task/ISubscribeTask.java

@@ -2,8 +2,9 @@

import javax.sip.DialogState;

/**
 * @author lin
 */
public interface ISubscribeTask extends Runnable{
    void stop();

    DialogState getDialogState();
}