To configure the J-series device to open a narrow
gate for media traffic by disabling the media source port feature
using the J-Web configuration editor:
Select Configuration > View and Edit > EditConfiguration.
The Configuration page appears.
Next to Security, click Configure or Edit.
Next to ALG, click Configure or Edit.
Next to H323, click Configure or Edit.
Select the Media source port any check box and
click OK.
If you are finished configuring the J-series device, commit
the configuration.