i started a GB28181 srs server,bug my camera cant regist on this server for having no UDP listening on port 5060

sip config:

![Image](https://github.com/user-attachments/assets/96317450-132e-4a9b-85db-eaf1b9dbc003)

tcpdump:

![Image](https://github.com/user-attachments/assets/a606b7f3-4575-44d3-9b19-d76466d4651d)

netstat:

![Image](https://github.com/user-attachments/assets/21c960b3-655a-4e9c-b4cb-9971fd325d55)