1. Start Fring application.

2. Login to the sippy web interface and open account settings.

3. Click "Options" in the Fring application.

4. Then click "Settings":

5. When the above has been done you need to choose "Configure services" 

6. In the list of available services please choose checkbox "SIP"

7. In the opened list please choose "Other"

8. After the above actions you will be able to add the below data (based on the information in step 2):

9. When the previous step is done, please click "OK" and you will see additional checkbox "SIP".